VALVES & CONTROLS
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Provides high quality overpressure protection for air, gas, steam, vapor, liquid and two-phase applications
in a standardized design.
IntroductIon
featureS
Crosby Series JOS-E and JBS-E springloaded pressure relief valves have been
engineered to provide high quality overpressure protection for air, gas, steam,
vapor, liquid and two-phase applications in
an exceptionally rugged, standardized
design to the process and power industries.
• Simplified disc insert retention for ease
of maintenance.
Series JOS-E and JBS-E pressure relief
valves are manufactured in accordance with
ASME Pressure Vessel Code, Section VIII
and capacities are certified by the National
Board of Boiler and Pressure Vessel
Inspectors.
All Crosby pressure relief valve castings and
forgings are procured to ASME/ASTM
material specifications and are available in
a number of material combinations such as
Monel®, Hastelloy® and stainless steel. In
addition, Series JOS-E and JBS-E relief
valves offer a number of special material
combinations such as Titanium, Duplex
Stainless Steel and Inconel®, and are
available on application.
Dimensions of flanges conform to current
ANSI Standards. All steel raised face
flanges are spiral concentric serrated finish
with 45 to 55 grooves per inch and a finish
between 125 Ra and 200 Ra. Other flange
facings, such as Ring Type Joint, are
available on request.
technIcal SpecIfIcatIonS
Sizes: 1" D 2" to 10" V 14"
Orifices: 0.110 to 42.19 in2
[71 to 27218 mm2]
Inlet Ratings: ANSI Classes 150, 300, 600,
900, 1500, 2500
Temperature Range: -450°F to +1000°F
[-268°C to +538°C]
Pressure Range
JOS-E and JLT-JOS-E:
15 to 6000 psig [1.03 to 413.79 barg]
JBS-E and JLT-JBS-E:
25 to 6000 psig [1.72 to 413.79 barg]
CROMC-0297-US-1402
Copyright © 2014 Pentair
• Standard Inconel® 625 bellows and
bellows flange material for superior
corrosion resistance, longer service life
and a wider range of applications.
• Universal disc holder allows for simple
and cost-effective conversions from
conventional to balanced bellows design.
• Standard threaded bellows design for
ease of maintenance and conversion from
conventional to balanced bellows design.
• Rugged nozzle ring design.
• Optional welded bellows attachment is
available for special applications.
• Series JLT capacities certified on liquid
and gas.
• Improved parts interchangeability,
regardless of top construction.
• Field proven series JLT trim for stable,
non-chattering operation on liquid and
gas service.
• Standard chrome steel spring for
-75°F to +650°F [-59°C to +343°C].
• Easily converted to any type cap or lifting
lever construction, liquid trim, soft seat
or balanced bellows configurations.
• Full compliance with ASME Boiler and
Pressure Vessel Code Section VIII and API
Standards 526 and 527.
ValVe StyleS
•
•
•
•
•
•
•
JOS-E
JBS-E
JBS-BP-E
JOS-H-E
JLT-JOS-E
JLT-JBS-E
JLT-JBS-BP-E
WWW.PENTAIR.COM/VALVES
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
JoS-e and JBS-e product InforMatIon
contents
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction/Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Materials of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Style Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
O-ring Soft Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Variations from Standard Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
Caps and Lifting Levers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
Sizes, Dimensions, and Pressure/Temperature Limits . . . . . . . . . . . . . . . . . . . . . . . . . . 18-49
Capacity Tables (U.S.C.S.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-56
Equivalents and Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Capacity Tables (Metric) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58-63
Crosby BlockBody® Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64-65
JBS-BP-E/JLT-JBS-BP-E Balancing Piston and Large Orifice Relief Valves . . . . . . . . . . . . 66
Ordering Information and Valve Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67-68
Bellows and top flange
Crosby Series JBS-E and JLT-JBS-E
balanced bellows pressure relief valves
provide optimum valve performance when
the developed back pressure in exhaust
systems or discharge manifolds becomes
excessive.
All standard JBS-E and JLT-JBS-E relief
valves feature a standard bellows and top
flange (Figure 1) manufactured from
Inconel® alloy 625 which is a fatigue
resistant material and provides improved
corrosion resistance compared to 316L
stainless steel bellows. Inconel® alloy
625 is highly resistant to pitting, crevice
corrosion and intergranular attack. The
standardization of Inconel® Alloy 625 bellows
and top flange provides a higher degree of
corrosion resistance without the premium
extra charge usually associated with
Inconel® bellows.
ease of maintenance and component
interchangeability
The disc insert retention, disc holder and
nozzle ring of the JOS-E and JBS-E have
been re-engineered to improve maintenance,
page 2
CROMC-0297-US-1402
minimize spare parts
and provide more component part
interchangeability (Figure 2).
The disc insert is inserted into the disc
holder with a retention clip which is
compressed as it passes through the
smallest diameter in the disc holder recess
and then returns to its normal shape once it
has passed through. With the retention clip
in its original shape, the disc insert is held
securely in place.
A “universal” disc holder allows for simple
and cost effective conversions from
conventional to balanced bellows design as
well as cost-effective bellows replacement.
The bellows threads on to the disc holder
with a tailpiece and gasket.
fIGure 1
The nozzle ring encloses the adjustment
slot at the bottom of the ring giving a more
rugged, durable design.
chrome steel spring
Standard chrome steel spring material for
applications with inlet temperatures up to
650°F [343°C].
Copyright © 2014 Pentair
fIGure 2
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
JoS-e and JBS-e product InforMatIon
Standard O-ring materials include Viton®,
BUNA-N, EPR, TFE, Silicone Rubber and
Kalrez®. Pressure and temperature limits of
each material are shown on page 13. Other
soft seat materials such as Chemraz® and
Aflas® are available on application. Pressure
and temperature limits for these soft seat
materials are available on application
dual certification
Crosby patented Series JLT (Figure 3)
pressure relief valves offer a significant
increase in capacity at 10% overpressure
resulting in the economic use of a smaller
valve as well as a reduction in inlet and
discharge piping costs. The JLT trim is a
field-proven patented design providing
stable, non-chattering operation for
liquid service.
cap, lifting lever and spindle
interchangeability
The JLT design is also capacity certified on
gas and vapor service and can be applied in
two-phase flow applications. The JLT design
is a logical choice for applications where the
process fluid may be a liquid or a gas
depending on the overpressure condition.
Bellows convertibility
fIGure 3
The Crosby flanged, spring operated
pressure relief valve is designed and
manufactured as a conventional valve and a
balanced bellows valve. The conversion from
conventional Series JOS-E or JLT-JOS-E in
sizes 1" D 2" through 8" T2 10" requires only
the addition of a bellows assembly and
bellows tail-piece gasket. No other parts are
necessary since all other parts are
completely interchangeable.
certifications and type approvals
• ASME Boiler & Pressure Code Section VIII
• National Board of Boiler & Pressure
Vessel Inspectors Capacity Certifications
• Canadian Registration Number
• Pressure Equipment Directive (97/27/EC),
(ISO-4126-1) (CE)
• China Manufacturing License (TS)
Seat design
Series JOS-E and JBS-E relief valves are
available with flat metal-to-metal seats or
soft seats. The JOS-E and JBS-E two-piece
disc holder/disc insert construction provides
thermal balancing assuring maximum seat
tightness, and meets the requirements of
API Standard 527, Seat Tightness of
Pressure Relief Valves.
fIGure 4
All Crosby JOS-E and JBS-E relief valves use
a threaded spindle and drilled and tapped
bonnet which permits easy cap or lifting
lever conversions, with maximum
standardization and interchangeability of
parts. In addition, standard cap and lifting
lever designs can be used with in-line test
devices.
• United States Coast Guard (USCG)
Where system operating conditions permit,
soft seat or elastomer seat construction is
available as an option. The Crosby O-ring
soft seat (Figure 4) is a two-seat design, with
a metal-to-metal seat located downstream
of the soft seat. The O-ring is the primary
seal. The secondary flat metal-to-metal seat
controls the compression of the O-ring and
also serves as a secondary seal should the
O-ring be damaged. Elastomeric O-ring soft
seat valves are seat tightness tested at 95%
of set pressure, exceeding the requirements
of API Standard 527.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 3
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JoS-e and Jlt-JoS-e conVentIonal preSSure relIef ValVeS
Crosby Series JOS-E and JLT-JOS-E are the
standard conventional relief valve designs for
applications when the discharge is to the
atmosphere or when the discharge is to a
low pressure exhaust system designed to
contain the process fluid. Valves subject to
flashing fluids may require a balanced
bellows type valve (see page 6).
teMperature ranGe
JOS-E and JLT-JOS-E( )5:
JOS-E and JLT-JOS-E( )6:
JOS-E and JLT-JOS-E( )7:
This exceptionally rugged design features a
high guiding surface ratio, corrosion
resistant trim, upgraded materials of
construction and several other design
improvements to ensure ease of
maintenance as well as a greater
degree of parts interchangeability.
For liquid service applications, Series
JLT-JOS-E relief valves provide stable
operating performance using the widely
industry recognized liquid trim design
patented by Crosby. The disc holder in the
liquid trim design has been engineered to
allow the valve to achieve full lift at 10%
overpressure without valve chatter.
-20°F to 650°F [-29°C to 343°C]
651°F to 800°F [344°C to 427°C]
801°F to 1000°F [428°C to 538°C]
SerIeS JoS-e and Jlt-JoS-e Standard MaterIalS of conStructIon
no.
1
1
2
3
4
5
8
part name
Body – JOS-E and JLT-JOS-E ( )5 and ( )6
Body – JOS-E and JLT-JOS-E ( )7
Nozzle
Nozzle Ring
Set Screw
Standard material
ASME SA216 Gr. WCB
ASME SA217 Gr. WC6
316 SS
316 SS
316 SS
Disc Holder
Disc Insert1
316L SS
316 SS
11
12
O-ring Retainer
Retainer Screw(s)
316 SS
18-8 SS
17
18
Spindle Cotter Pin
Spring – JOS-E and JLT-JOS-E ( )5
SS
Chrome Steel3
9
10
15
16
18
19
20
20
21
22
24
25
26
27
28
34
35
36
40
41
page 4
Retention Clip2
O-ring1
Guide
Spindle
Spring – JOS-E and JLT-JOS-E ( )6 and ( )7
Spring Washers
Bonnet – JOS-E and JLT-JOS-E ( )5 and ( )6
Bonnet – JOS-E and JLT-JOS-E ( )7
Bonnet Stud
Bonnet Stud Nut
Inconel® X750
Specify
ASTM A297 Gr. HE SST
416 SS
Alloy Steel3,4
CS
ASME SA216 Gr. WCB
ASME SA217 Gr. WC6
ASME SA193 Gr. B7
ASME SA194 CL 2H
Adjusting Bolt
Adjusting Bolt Nut
316 SS5
316 SS
Guide Gasket1
Seal and Wire
316 SS
Lead and SS
Pipe Plug (Bonnet)
Set Screw Gasket1
Seal Clip (Not Shown)
Nameplate (Not Shown)
Threaded Cap
Cap Gasket1
CROMC-0297-US-1402
Copyright © 2014 Pentair
CS
316 SS
SS
SS
CS
316 SS
notes:
1. Recommended Spare Part.
2. Furnished with Disc Insert.
3. Corrosion resistant coating.
4. Crosby may upgrade to Inconel® X750.
5. Class 900#, 1500# and 2500# inlet ratings use
416 SS.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JoS-e and Jlt-JoS-e conVentIonal preSSure relIef ValVeS
40
24
25
34
12
41
11
10
19
26
20
Series Jlt-JoS-e
(with o-ring seat)
18
19
16
21
17
22
15
28
9
8
5
3
4
34
27
1
2
Series JoS-e
(with metal-to-metal seat)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 5
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JBS-e and Jlt-JBS-e Balanced BelloWS preSSure relIef ValVeS
Crosby Series JBS-E and JLT-JBS-E are
pressure relief valves incorporating a bellows
which is balanced to minimize the effect of
back pressure on the performance
characteristics. The balanced bellows design
offsets the effects of variable back pressure
on valve set pressure. The balanced bellows
valve can also handle applications involving
high built-up back pressure.
teMperature ranGe
JBS-E and JLT-JBS-E( )5:
JBS-E and JLT-JBS-E( )6:
JBS-E and JLT-JBS-E( )7:
Additionally, the bellows serves to isolate
the guide, spindle, spring and other parts
contained in the bonnet chamber from
corrosive fluids or media such as a highly
viscous fluid or slurry which could render
the relief valve inoperative.
For liquid service applications, Crosby offers
Series JLT-JBS-E relief valves.
1
1
2
3
4
651°F to 800°F [344°C to 427°C]
801°F to 1000°F [428°C to 538°C]
part name
Body – JBS-E and JLT-JBS-E ( )5 and ( )6
Body – JBS-E and JLT-JBS-E ( )7
Nozzle
Nozzle Ring
Set Screw
Standard material
ASME SA216 Gr. WCB
ASME SA217 Gr. WC6
316 SS
316 SS
316 SS
5
6A
Disc Holder
Bellows Tailpiece1
316L SS
316L SS
8
9
Disc Insert2
Retention Clip3
316 SS
Inconel® X750
6B
6C
10
11
Bellows1
Bellows Flange1
Inconel® 625
Inconel® 625
O-ring2
O-ring Retainer
Specify
316 SS
Spindle
Spindle Cotter Pin
416 SS
SS
Spring Washers
Bonnet – JBS-E and JLT-JBS-E ( )5 and ( )6
CS
ASME SA216 Gr. WCB
22
24
Bonnet Stud Nut
Adjusting Bolt
ASME SA194 CL 2H
316 SS6
27
28
Set Screw Gasket2
Guide Gasket2
316 SS
316 SS
12
15
16
17
18
18
19
20
20
21
25
26
Retainer Screw(s)
Guide
Spring – JBS-E and JLT-JBS-E ( )5
Spring – JBS-E and JLT-JBS-E ( )6 and ( )7
Bonnet – JBS-E and JLT-JBS-E ( )7
Bonnet Stud
Adjusting Bolt Nut
Nameplate (not shown)
29
34
Tailpiece Gasket2
Seal and Wire
41
Cap Gasket2
35
40
page 6
Seal Clip (not shown)
Threaded Cap
CROMC-0297-US-1402
The JBS-E and JLT-JBS-E bellows and
bellows flange are supplied in Inconel® 625
as standard material for improved durability,
corrosion resistance and service life.
-20°F to 650°F [-29°C to 343°C]
SerIeS JBS-e and Jlt-JBS-e MaterIalS of conStructIon
no.
The standard bellows assembly of the Crosby
Series JBS-E and JLT-JBS-E threads onto
the disc holder with a bellows tailpiece and
gasket. A welded bellows attachment is
available as an option.
Copyright © 2014 Pentair
18-8 SS
ASTM A297 Gr. HE SST
Chrome Steel4
Alloy Steel4,5
ASME SA217 Gr. WC6
ASME SA193 Gr. B7
316 SS
SS
316 SS
Lead and SS
SS
CS
316 SS
notes:
1. Subassembly.
2. Recommended Spare Part.
3. Furnished with Disc Insert.
4. Corrosion resistant coating.
5. Crosby may upgrade to Inconel® X750.
6. Class 900#, 1500# and 2500# inlet ratings use
416 SS.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JBS-e and Jlt-JBS-e Balanced BelloWS preSSure relIef ValVeS
40
12
24
25
11
34
10
41
19
Series JBS-e
(with o-ring seat)
Note: This vent must
remain open on
JBS-E and JLT-JBS-E
construction
20
18
19
16
21
17
22
28
15
6C
6B
6A
9
8
5
3
29
4
34
27
1
2
Series JBS-e
(with metal-to-metal seat)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 7
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS Jlt-JoS-e and Jlt-JBS-e lIQuId trIM preSSure relIef ValVeS
Crosby Series JLT pressure relief valves for
liquid service were developed using Crosby’s
unique patented trim design. This contoured
liquid trim design (Figure 1) with over 25
years of successful field experience was
patented prior to the issuance of ASME Code
Section VIII requirements that became
mandatory in 1985. The JLT trim offers a
significant increase in capacity at 10%
overpressure and in many cases, results in
selection of a smaller valve with an
associated reduction in inlet and discharge
piping costs.
The liquid trim design provides smooth and
stable valve operation on liquid service
applications. When system pressure reaches
the specified set pressure, a small steady
stream of fluid begins to flow from the valve.
Valve disc lift at this pressure is minimal.
As the system pressure increases into the
range of 3% to 5% overpressure, the valve
then opens with a pop type lift to the full lift
position. At 10% overpressure, the JLT valve
will have attained full lift and be flowing an
amount equal to or greater than the rated
capacity (Figure 2).
As the system pressure begins to decay, flow
through the valve decreases until the valve
reseats with a clean positive closing action.
The JLT design is also capacity certified for
gas and vapor service and can be applied in
two-phase flow applications. The JLT design
is a logical choice where the process fluid
may be a liquid or gas depending on the
overpressure condition.
typical flow curve - contoured trim design (Jlt)
100
75
50
Pop Lift
25
Closed
% Maximum Rated Capacity
Disc holder with
patented contour
-15 -10 -5
fIGure 1
Blow
Down
0
Set
Point
5
Uniform Increase
in Lift
Overpressure
fIGure 2
page 8
CROMC-0297-US-1402
Copyright © 2014 Pentair
10 15 20 25
30
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JoS-h-e conVentIonal open Bonnet preSSure relIef ValVeS
Series JOS-H-E relief valves (Figure 1) are
intended for ASME Code Section VIII steam
service applications and are furnished with
a regular lifting lever as standard.
The standard chrome steel spring in the
JOS-H-E open bonnet design is exposed
for atmospheric cooling.
Series JOS-H-E (and JOS-E) relief valves for
steam service at set pressures above 450
psig, use 316L stainless steel disc holder
with disc bushing and 17-4 ph stainless steel
disc insert (see Figure 2).
Optional accessories include a test rod
as well as a weather hood. Materials of
construction are identical to the standard
closed bonnet JOS-E design (see page 4).
The JOS-H-E has a maximum temperature
rating of 800°F [427°C] using WCB carbon
steel body and bonnet and chrome steel
spring.
Disc Holder
Bushing
Disc Insert
Steam service trim for set pressures
greater than 450 psi
fIGure 2
JoS-h-e conventional open bonnet
fIGure 1
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 9
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JoS-e and Jlt-JoS-e
conventional pressure relief Valves for Sour Gas Service per nace Mr0175 (2002 edition)1
Level 1 - For applications where compliance
with NACE MR0175 is required for
wetted parts in the primary
(upstream) pressure zone of the
pressure relief valve. Materials of
construction for Level 1 are
standard and can be found on
page 4.
Level 2 - For applications where compliance
with NACE MR0175 is required for
wetted parts in the primary
(upstream) and secondary
(downstream) pressure zones of the
pressure relief valve. (Designated as
“N2” in model number)
While the materials recommended for the
Series JOS-E and JLT-JOS-E sour gas valves
are suitable for average service conditions,
optional materials are available to provide
additional resistance to corrosion beyond the
minimum requirements of the standard.
SerIeS JoS-e and Jlt-JoS-e MaterIalS of conStructIon
ref no.
part name
1
Body
4
5
Set Screw
Disc Holder
2
3
8
9
15
16
17
18
19
20
21
22
24
25
26
27
28
34
35
40
41
Standard nace Material
level 2 (n2)
ASME SA216 Gr. WCB
Nozzle
Nozzle Ring
316 SS
316 SS
Disc Insert
Retention Clip
Guide
Spindle
ASTM A297 Gr. HE SST
316 SS*
Spring Washer
Bonnet
316 SS*
ASME SA216 Gr. WCB
Spindle Cotter Pin
Spring
Bonnet Stud
Bonnet Stud Nut
Adjusting Bolt
Adjusting Bolt Nut
Pipe Plug (Bonnet)
Set Screw Gasket
Guide Gasket
Seal and Wire
Seal Clip (not shown)
Threaded Cap
Cap Gasket
41
34
19
SS
Inconel® X750*
18
19
316 SS*
316 SS
1. Contact your sales representative for
compliance to NACE MR0175 (2003 Edition) or
NACE MR0175/ISO 15156 requirements.
2. If the valve bolting could be directly exposed or
in contact with the hydrogen sulfide
environment, bonnet studs can be ASME A193
Gr. B7M HRC-22 maximum and bonnet stud
nuts can be ASME A194 Class 2HM HRC-22
maximum.
Copyright © 2014 Pentair
17
22
15
316 SS
Lead and SS
316 SS
16
21
CS
316 SS
SS
CS
26
20
Alloy Steel2
Alloy Steel2
notes:
CROMC-0297-US-1402
24
25
316 SS
Inconel® X750
* Variation from standard and NACE Level 1 product.
page 10
40
316 SS
316L SS
34
28
9
8
5
3
4
27
1
2
Series JoS-e
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SerIeS JBS-e and Jlt-JBS-e
Balanced Bellows pressure relief Valves for Sour Gas Service per nace Mr0175 (2002 edition)1
Level 1 - For applications where compliance
with NACE MR0175 is required for
wetted parts in the primary
(upstream) pressure zone of the
pressure relief valve. Materials of
construction for Level 1 are
standard and can be found on
page 6.
Level 2 - For applications where compliance
with NACE MR0175 is required
for wetted parts in the primary
(upstream) and secondary
(downstream) pressure zones of
the pressure relief valve. The
Inconel® 625 bellows isolates the
valve spring and other critical
components above it from the
process fluid. (Designated as “N2”
in model number)
While the materials recommended for the
Series JBS-E and JLT-JBS-E sour gas valves
are suitable for average service conditions,
optional materials are available to provide
additional resistance to corrosion beyond the
minimum requirements of the standard.
SerIeS JBS-e and Jlt-JBS-e MaterIalS of conStructIon
ref no.
1
40
24
25
19
16
17
21
22
15
6C
6B
6A
28
9
8
5
3
29
4
6B
6A
Bellows2
Bellows Tailpiece2
Inconel® 625
316L SS
27
1
2
316L SS
316 SS
Spindle
Spindle Cotter Pin
416 SS
SS
18
19
Spring
Spring Washer
20
21
22
24
Inconel® X750
ASTM A297 Gr. HE SST
Chrome Steel-Aluminum Metallized*
Steel
Bonnet
Bonnet Stud
ASME SA216 Gr. WCB
Alloy Steel3
Bonnet Stud Nut
Adjusting Bolt
25
27
Adjusting Bolt Nut
Set Screw Gasket
34
35
Seal and Wire
Seal Clip (not shown)
41
316 SS
Inconel® 625
Disc Holder
Disc Insert
Retention Clip
Guide
40
Series JBS-e
(with bellows)
Set Screw
Bellows Flange2
9
15
28
29
34
ASME SA216 Gr. WCB
316 SS
316 SS
16
17
18
19
Body
Nozzle
Nozzle Ring
5
8
20
Standard nace Material
level 2 (n2)
2
3
4
6C
41
34
part name
Steel3
316 SS
316 SS
316 SS
Guide Gasket
Tailpiece Gasket
316 SS
316 SS
Lead and SS
SS
Threaded Cap
CS
Cap Gasket
316 SS
* Variation from standard product; Crosby may upgrade to Inconel® X750.
notes:
1. Contact your sales representative for
compliance to NACE MR0175 (2003 Edition) or
NACE MR0175/ISO 15156 requirements.
2. Subassembly.
3. If the valve bolting could be directly exposed or
in contact with the hydrogen sulfide
environment, bonnet studs can be ASME A193
Gr. B7M HRC-22 maximum and bonnet stud
nuts can be ASME A194 Class 2HM HRC-22
maximum.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 11
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Model nuMBerInG
6Q8
Inlet x orifice x outlet
1d2
to 10V14
Valve series
JoS-e
JBS-e
JltJoS-e
JltJBS-e
JBSBp-e
JltJBSBp-e
JoS-h-e
–
–
–
–
–
–
–
Conventional
Bellows
Conventional with liquid trim
Bellows with liquid trim
Bellows with balancing piston
Bellows with liquid trim and balancing piston
Conventional with open bonnet for ASME
Code Section VIII steam service
high pressure Q and r orifice indication
none – Standard
# – 600# high pressure Q or R orifice
Seat type
none – Metal
or – O-Ring1
Inlet flange rating4
1
2
3
4
5
6
7
X
–
–
–
–
–
–
–
–
150#
300# (Light)
300#
600#2
900#
1500#
2500#
Other
temperature range4
2
4
5
6
7
X
–
–
–
–
–
–
-450°F to -76°F [-268°C to -60°C]
-75°F to -21°F [-59°C to -30°C]
-20°F to 650°F3 [-29°C to 343°C]
651°F to 800°F [344°C to 427°C]
801°F to 1000°F [428°C to 538°C]
Other
flange facing
none
r
t
X
–
–
–
–
(Standard) RF x RF
RTJ x RF
RTJ x RTJ
Other
Model # examples:
1D2JOS-E15J
1D2JOS-E15LTJ
1.5F2JBS-E25SJ
4P6JLTJBS-E45SRD-PN2
3J4JBS-E75XXL-PBSPL
6Q8JBS-EX5XXC-SPL
page 12
CROMC-0297-US-1402
Copyright © 2014 Pentair
JltJBS-e
#
or
4
5
r
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
l6
d
–
pn2
Model number supplements7
p
n2
S
B
Spl
–
–
–
–
–
PED Certification
NACE MR0175-2002 Edition6,9
Steam trim set pressure above 450 psig
Forged block body configuration
Non-standard option or configuration
Model number supplement indicator
none – No model number supplement(s)
If model number supplement is present
cap and lifting lever type5
J
K
c
d
e
l
M
a
B
G
h
t
X
–
–
–
–
–
–
–
–
–
–
–
–
–
(Standard) threaded cap
Threaded cap with test rod
Regular lifting lever
Packed lifting lever
Packed lifting lever with test rod
Bolted cap
Bolted cap with test rod
Threaded cap (restricted height)
Threaded cap with test rod (restricted height)
Bolted cap (restricted height)
Bolted cap with test rod (restricted height)
Regular lifting lever with test rod
Other
Material variations
none
c6
S4
S6
S
lt
l6
M1
M4
M5
M6
M
h1
h4
h5
h6
h
XX
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Standard materials
CS body and bonnet and bonnet/316 SS trim/Inconel® X750 spring8
CS body and bonnet/316 SS trim/Ctd. chrome steel spring
SST body and bonnet/316 SS trim/Inconel® X750 spring
SST body and bonnet/316 SS trim/316 spring
Low temp CS body and bonnet/SST trim/Ctd. chrome steel spring
Low temp CS body and bonnet/SST trim/Inconel® X750 spring
CS body and bonnet/SST and Monel® trim/Ctd. chrome steel spring
CS body and bonnet/Monel® trim/Ctd. chrome steel spring
Monel® body and bonnet/Monel® trim/Ctd. chrome steel spring
Monel® body and bonnet/Monel® trim/Inconel® X750 spring
Monel® body and bonnet/Monel® trim/Monel® spring
CS body and bonnet/SST and Hastelloy® Trim/Ctd. chrome steel spring
CS body and bonnet/Hastelloy® trim/Ctd. Chrome steel spring
Hastelloy® body and bonnet/Hastelloy® trim/Ctd. chrome steel spring
Hastelloy® body and bonnet/Hastelloy® trim/Inconel® X750 spring
Hastelloy® body and bonnet/Hastelloy® trim/Hastelloy® spring
Other
notes:
(1) When ordering soft seats, specify material
according to page 12.
(4) See page 18-47 for appropriate maximum set
pressures, temperatures, and outlet flange.
(7) More than one model number supplement can
be used at once.
(2) Except “T” and “T2” orifices. These have 300#
inlet flange.
(5) Refer to page 17 for ASME Code Section VIII
requirements regarding lifting lever.
(8) Only applies to non-NACE applications.
(3) JOS-H-E may be used up to 800°F [427°C].
(6) Contact sales representative for compliance to
NACE MR0175-2003 or later.
(9) NACE MR0175-2002 materials of construction
on pages 10 and 11.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 13
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
aVaIlaBle optIonS
Materials
• Special materials Alloy 20, Duplex, Titanium, etc.
• Xylan coating for bellows and inside body/bonnet/cap
• Spring coatings and platings
• Materials of construction for applications above 1000°F
• Special gasket materials including GRAFOIL, Hastelloy®, Teflon®, etc
connections
• 300# cosmetic or fully rated non-standard outlets
• Special connections such as tri-clamp, Grayloc, etc.
• International flange standards
• Flat Face and RFSF flange options
accessories
• Position indicator, proximity switch, etc.
• Steam jacketed bodies
others
• High pressure forged block body design
• Special painting or coating
• Special cleaning and testing
• Welded bellows/disc holder
• Lethal service construction
page 14
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
o-rInG Soft Seat MaterIalS and preSSure/teMperature lIMItS
Set Pressure, barg
1.03
34.5
69.0
102
260
Kalrez® (80)
500
6.90
Kalrez® (90)
TFE
TFE
400
Kalrez® (80)
Silicone (80)
Viton® (75)
TFE
Inlet temperature, °f
Kalrez®
(80)
300
Kalrez® (90)
Viton® (90)
TFE
Inlet
InletTemperauture,
temperature,°C°c
Silicone
(50)
204
200
93
EPR (70)
Silicone
BUNA-N (70)
EPR (80) 325°F Max
Kalrez® (80)
Silicone (70)
Viton® (75)
TFE
50
BUNA-N
(50)
100
BUNA-N (90)
EPR (90)
Kalrez® (90)
Viton® (90)
TFE
BUNA-N (60)
EPR (70)
Silicone (50)
-17
0
BUNA-N
(70)
EPR
-50
BUNA-N
(90)
(70)
Silicone
(70)
TF
TFE
EPR (90)
Silicone
-45
TFE
-101
-150
15
100
200
300
400
500
600
700
800
900
1000
Set Pressure, psig
Figures in ( ) are Durometer Hardness
MaXIMuM Set preSSure lIMItS
orifice
D
E
F
G
H
J
K
L
M
N
P
Q
R
T
T2
Maximum Set pressure
psig
barg
1480
102
1480
1480
102
102
1480
1480
1480
1480
1000
1100
1000
1000
600
300
300
300
1200
1400
1480 or max. set pressure
rating of the O-ring soft seat
epr = Ethylene Propylene Rubber
tfe = Tetrafluoroethylene
note: Other soft seat materials are available on request. For O-ring seats below -150°F [-101°C] consult
your sales representative. For steam service, metal-to-metal seats are recommended; consult your sales
representative if soft seats are required. Minimum cold differential test pressure for TFE seat is 100 psig.
102
102
102
102
68.9
75.8
68.9
68.9
41.3
20.6
20.6
20.6
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 15
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
JoS-e, JBS-e and Jlt – VarIatIonS froM Standard MaterIalS
low temperature
ref.
no. part name
1
Body
ASME SA352
Gr LCB/LCC
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
416 SS
SS
Adjusting Bolt
Adjusting Bolt Nut
Nameplate (not shown)
CS
ASME SA352
Gr. LCB/LCC
ASME SA193
Gr. B7
ASME SA194
Gr. 8
316 SS
316 SS
SS
Threaded Cap
Cap Gasket2
CS
316 SS
Nozzle
Nozzle Ring
Set Screw
Disc Holder
Bellows Flange1
Bellows1
Bellows Tailpiece1
Disc Insert2
Retention Clip3
O-ring
O-ring Retainer
Retainer Screws
Guide
18
Spring
Spindle
Spindle Cotter Pin
19
20
Spring Washers
Bonnet
22
Bonnet Stud Nut
27
28
29
34
35
Set Screw Gasket2
Guide Gasket2
Tailpiece Gasket2
Seal and Wire
Seal Clip (not shown)
21
24
25
26
40
41
( ) ( ) l6
ASME SA352
Gr. LCB/LCC
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
416 SS
SS
2
3
4
5
6C
6B
6A
8
9
10
11
12
15
16
17
( ) ( ) lt
Bonnet Stud
Chrome Steel
316 SS
316 SS
316 SS
Lead and SS
SS
Inconel® X750
316 Stainless Steel
JoS-e/JBS-e/Jlt( )4 JoS-e/JBS-e/Jlt( )2
-75°f to -21°f
-450°f to -76°f
[-59°c to -30°c] [-268°c to -60°c] ( ) ( ) S4
ASME SA351
Gr. CF8M
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
416 SS
SS
ASME SA351
Gr. CF8M
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
316 SS
SS
ASME SA216
Gr. CF8M
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
316 SS
SS
( ) ( ) S6
()()S
Inconel® X750
316 SS7
ASME SA351
Gr. CF8M
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
316 SS
SS
316 SS
ASME SA352
Gr. LCB/LCC
ASME SA193
Gr. B7
ASME SA194
CL. 2H
316 SS
316 SS
SS
Chrome Steel4
or Inconel® X75010
CS
ASME SA351
Gr. CF8M
ASME SA193
Gr. B8
ASME SA194
CL. 2H
316 SS6
316 SS
SS
316 SS
or Alloy Steel5
316 SS
ASME SA351
Gr. CF8M
ASME SA320
Gr. B8
ASME SA194
Gr. 8
316 SS
316 SS
SS
316 SS
ASME SA216
Gr. WCB
ASME SA193
Gr. B7
ASME SA194
CL. 2H
316 SS
316 SS
SS
316 SS
ASME SA351
Gr. CF8M
ASME SA193
Gr. B8
ASME SA194
Gr. 8
316 SS
316 SS
SS
316 SS
ASME SA351
Gr. CF8M
ASME SA193
Gr. B8
ASME SA194
Gr. 8
316 SS
316 SS
SS
CS
316 SS
316 SS
316 SS
316 SS
316 SS
CS
316 SS
316 SS
316 SS
316 SS
316 SS
316 SS
316 SS
316 SS
Lead and SS
SS
316 SS
316 SS
316 SS
Lead and SS
SS
Chrome Steel4
ASME SA351
Gr. CF8M
316 SS
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
316 SS
Inconel® X750
Specify
316 SS
18-8 SS
ASTM A297
Gr. HE SST
316 SS
SS
316 SS
316 SS
316 SS
Lead and SS
SS
316 SS
316 SS
316 SS
Lead and SS
SS
316 SS
316 SS
316 SS
Lead and SS
SS
316 SS
316 SS
316 SS
Lead and SS
SS
40
24
25
41
34
19
12
17
11
26
20
10
18
19
21
22
15
16
17
28
9
8
5
cotter pins
used in l orifice and above only
Jlt
o-ring soft seat
34
3
4
27
1
2
JoS-e
page 16
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
JoS-e, JBS-e and Jlt – VarIatIonS froM Standard MaterIalS (contInued)
Monel®
ref.
no. part name
1
2
3
4
5
6C
6B
6A
8
9
10
11
12
15
16
17
Body
( ) ( ) M1
ASME SA216
Gr. WCB
Nozzle
Monel®
Nozzle Ring
316 SS
Set Screw
316 SS
Disc Holder
316L SS
Bellows Flange1 Inconel® 625
Inconel® 625
Bellows1
Bellows Tailpiece1 316L SS
Monel®
Disc Insert2
Retention Clip3
Inconel® X750
O-ring
Specify
O-ring Retainer
Monel®
Retainer Screws Monel®
Guide
ASTM A297
Gr. HE SST
Spindle
416 SS
Spindle Cotter Pin SS
18 Spring
19
20
21
22
24
25
26
27
28
29
34
35
40
41
Chrome Steel4
or Alloy Steel5
Spring Washers CS
Bonnet
ASME SA216
Gr. WCB
Bonnet Stud
ASME SA193
Gr. B7
Bonnet Stud
ASME SA194
Nut
CL. 2H
Adjusting Bolt
316 SS6
Adjusting Bolt Nut 316 SS
Nameplate
SS
(not shown)
Set Screw Gasket2 316 SS
Guide Gasket2
316 SS
Tailpiece Gasket2 316 SS
Seal and Wire
Lead and SS
Seal Clip
SS
(not shown)
Threaded Cap
CS
Cap Gasket2
316 SS
40
24
25
34
( ) ( ) M4
( ) ( ) M5
hastelloy®
( ) ( ) M6
()()M
( ) ( ) h1
ASME SA216
Gr. WCB
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Inconel® X750
Specify
Monel®
Monel®
Monel®
ASME SA494
Gr. M35-19
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Inconel® X750
Specify
Monel®
Monel®
Monel®
ASME SA494
Gr. M35-1
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Inconel® X750
Specify
Monel®
Monel®
Monel®
ASME SA494
Gr. M35-19
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Inconel® X750
Specify
Monel®
Monel®
Monel®
Chrome Steel5
Nickel Plated8
316 SS
ASME SA216
Gr. WCB
ASME SA193
Gr. B7
ASME SA194
CL. 2H
Monel®
Monel®
SS
Chrome Steel5
Nickel Plated8
316 SS
ASME A494
Gr. M35-19
ASME SA193
Gr. B8
ASME SA194
Gr. 8
Monel®
Monel®
SS
Inconel® X750
Monel® or
Inconel®
Monel®
ASME A494
Gr. M35-19
ASME SA193
Gr. B8
ASME SA194
Gr. 8
Monel®
Monel®
SS
Chrome Steel4
or Alloy Steel5
CS
ASME SA216
Gr. WCB
ASME SA193
Gr. B7
ASME SA194
CL. 2H
316 SS6
316 SS
SS
Chrome Steel5
Nickel Plated8
316 SS
ASME SA216
Gr. WCB
ASME SA193
Gr. B7
ASME SA194
CL. 2H
Monel®
Monel®
SS
Monel®
Monel®
CS
316 SS
CS
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Lead and SS
SS
CS
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Lead and SS
SS
Monel®
Monel®
Monel®
Monel®
Monel®
ASME A494
Gr. M35-1
ASME SA193
Gr. B8
ASME SA194
Gr. 8
Monel®
Monel®
SS
Monel®
Monel®
Monel®
Lead and SS
SS
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Monel®
Lead and SS
SS
ASME SA216
Gr. WCB
Hastelloy® C
316 SS
316 SS
316L SS
Inconel® 625
Inconel® 625
316L SS
Hastelloy® C
Inconel® X750
Specify
Hastelloy® C
Hastelloy® C
ASTM A297
Gr. HE SST
416 SS
SS
( ) ( ) h4
316 SS
316 SS
316 SS
Lead and SS
SS
ASME SA216
Gr. WCB
Hastelloy® C
Hastelloy® C
Monel®
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Inconel® X750
Specify
Hastelloy® C
Hastelloy® C
Hastelloy® C
Monel®
Monel®
Monel®
Monel®
Monel®
Lead and SS
SS
( ) ( ) h5
ASME SA494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Inconel® X750
Specify
Hastelloy® C
Hastelloy® C
Hastelloy® C
( ) ( ) h6
()()h
Hastelloy® C
Hastelloy®
Hastelloy® C
Hastelloy®
or Monel®
Hastelloy® C
ASME SA494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Inconel® X750
Specify
Hastelloy® C
Hastelloy® C
Hastelloy® C
ASME SA494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Inconel® X750
Specify
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy® C
Hastelloy®
or Monel®
Chrome Steel5
Nickel Plated8
316 SS
ASME A494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
ASME A494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
ASME A494
Gr. CW-12MW
Hastelloy® C
Hastelloy® C
Hastelloy® C
SS
Hastelloy® C
Hastelloy® C
SS
Hastelloy® C
Hastelloy® C
SS
Hastelloy® C
Monel®
Monel®
Monel®
Lead and SS
SS
Hastelloy® C
Monel®
Inconel® X750
Hastelloy® C
Monel®
Monel®
Monel®
Lead and SS
SS
Hastelloy® C
Monel®
Hastelloy® C
Monel®
Monel®
Monel®
Lead and SS
SS
Hastelloy® C
Monel®
notes:
1. Subassembly.
2. Recommended Spare Part.
41
3. Furnished with Disc Insert.
19
4. Corrosion resistant coating.
5. Crosby may upgrade to Inconel® X750.
Note: This vent must
remain open on
JBS-E and JLT-JBS-E
construction
20
18
19
21
22
15
6C
6B
6A
8
5
3
4
34
16
17
28
6. Class 900#,1500#, and 2500# inlet ratings use 416 SS.
7. Temperature limit for 316 SS spring is +500°F [+260°C].
8. For temperatures above +650°F [+343°C], Crosby will supply either
alloy steel nickel plated or Inconel® X750.
9. Permitted by ASME Code Case 1750.
10. Minimum temperature for Inconel® X750 springs is -320°F [-196°C]
9
29
27
1
2
JBS-e
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 17
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
capS and lIftInG leVerS
Cap
Dog Shaft
Lever Nut
Lever Nut
Lockwasher
Packing Gland Sleeve
Packing Gland Nut
Spindle
Cap
Lever
Packing
Packing
Gland
Dog Shaft
Gasket
Seal
and
Wire
Cap Plug
Threaded Cap
Type A
Test Rod
Cap Gasket
Type J
(standard)
Cap or
Cap Top
Cap
Plug
Gasket
Packed Lifting Lever
Type D
(Top view of Packing Gland construction
used for special materials)
Spindle
Lever Nut
Cap and Test Rod
Type B - Threaded Cap
Type E - Packed Lifting Lever
Type H - Bolted Cap
Type K - Threaded Cap (standard)
Type M - bolted Cap (standard)
Cap
Cap
Spindle
Lever
Lockwasher
Dog Shaft Bearing
Gasket
Dog Shaft
O-ring
Cap
Cap Stud
Cap Stud
Nut
Dog
Bolted Cap
Type L
(standard)
Type G
Valve
Spindle
Seal
and
Wire
Packed Lifting Lever
Type D
(Top View)
Cap
Spindle Nut
Cotter Pin
Cap Top
Cotter Pin
Forked Lever
Cap Top
Gasket
Spindle Nut
Cotter Pin
Dog
Cap
Dog
Shaft
Pin
Pin
Cap Set
Screw
Spindle
Adjusting
Bolt
Adjusting
Bolt Nut
Cap Stud
Cap Stud Nut
Lever
Regular Lifting Lever
Cap Gasket
Type C
Packed Lifting Lever
Type D
page 18
CROMC-0297-US-1402
Copyright © 2014 Pentair
Seal and
Wire
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
capS and lIftInG leVer MaterIalS
Styles JOS-E/JBS-E/JLT pressure relief valves
are regularly furnished with closed bonnet and
screwed cap over the adjusting bolt. The
following types of top construction are
available except where otherwise indicated.
Packed (Type D) – For services where
tightness on the discharge side is necessary
and where conditions are such that periodic
testing is desirable. Also recommended for
hot water services.
Screwed Cap (Type J Standard) – Where no
lifting lever is required.
ASME Code Section VIII Requirements for
Lifting Levers: The omission of the lifting
lever is permitted under Code Case 2203.
However, Pentair Valves & Controls requires
that purchase order for relief valves intended
for steam, air or water over 140°F ordered
without lifting levers shall indicate the valves
are specified in accordance with Code Case
2203. The buyer is responsible for obtaining
jurisdictional approval for use of Code Case
2203.
Bolted Cap (Type L) - Where no lifting lever is
required. Available on special order.
lifting levers
ASME Code Section VIII requires that a lifting
lever must be supplied with the valve when
the service is: (1) air, (2) water at the valve
inlet that exceeds 140°F [60°C], excluding
overpressure or relief events, or (3) steam.
Regular (Type C) - for steam and air service
where the valve cap is not required to be tight on
the discharge side and where conditions are
such that periodic testing is desirable. Regular
lifting levers may be furnished with a
supplementary gagging device on special order.
(Designated as Type T)
ref.
no. part name
24 Cap (J, K, D, E, L, M)
Cap (C)
36 Cap Top (D, E)
31 Cap Set Screw (C)
40 Cap Stud
41 Cap Stud
48 Lever (D, E)
32 Lever (C),
35 Forked Lever (C)
33 Pin
(Lever, Forked Lever)
34 Cotter Pins
49 Lever Nut (D, E)
50 Lever Nut
Lockwasher
30 Spindle Nut
38 Dog
39 Dog Shaft
46 Dog Shaft
Bearing
45 Dog Shaft
Bearing O-ring
57 Packing Gland
58 Packing Gland
Sleeve
59 Packing Gland Nut
56 Packing
27 Test Rod (K, E, M)
28 Cap Plug (K, E, M)
25
29
37
47
Gaskets
Type J screwed cap changes to Type K with
test rod. Type D packed lifting lever changes
to Type E with test rod.
Type L bolted cap changes to Type M with
test rod.
height restricted applications
For applications where there are height
restrictions, cap types A,B,G and H are
available.
cautIon: test rods should never be
tightened more than finger-tight. overtightening may damage internal parts.
also, a test rod should never be kept on
the valve during operation of the equipment. during normal operation the test
rod is replaced with cap plug and gasket
to maintain tightness on the discharge
side.
test rods
Types K, E or M - Valves with screwed caps,
packed lifting levers or bolted caps can be
fitted to accommodate test rods which will
hold the valve closed when the equipment on
which they are installed is hydrostatically
tested.
Standard Material
Variations from Standard Materials
JoS/JBS-( )5,6,7 JoS/JBS-( ) 4 JoS/JBS-( ) 2
-20°f to 1000°f -75°f to -21°f -450°f to -76°f
( )( )M and
[-29°c to 538°c] [-59°c to -30°c] [-268°c to -60°c] ( )( )S
( )( )S4
( )( )M51
CS
Malleable Iron
Steel
SS
Alloy Steel
Steel
Steel
Malleable Iron
Malleable Iron
Steel
316 SS
Malleable Iron
316 SS
SS
304 SS
304 SS
Steel
Malleable Iron
Malleable Iron
Steel
316
316
316
SS
304
304
316
316
316
SS
Steel
Steel
416 SS
416 SS
Steel
Steel
416 SS
416 SS
316 SS
316 SS
316 SS
2
2
2
Steel
Steel
Steel
Viton®
Steel
Steel
Steel
Viton®
2
2
SS
SS
SS
SS
SS
SS
SS
SS
SS
316 SS
SS
2
316 SS
316 SS
316 SS
316 SS
316 SS
316 SS
Monel®
Monel®
Monel®
2
2
2
SS
SS
SS
SS
SS
SS
316 SS
SS
2
Steel
316 SS
Steel
2
3
Monel®
3
CS
3
Steel
3
Hastelloy® C
3
Hastelloy® C
3
304 SS
304 SS
316 SS
Alloy Steel
Steel
Steel
Hastelloy® C
Hastelloy® C
316 SS
3
3
3
3
3
SS
SS
SS
2
3
3
3
3
Steel
316 SS
Steel
SS
316 SS
SS
2
2
Monel®
Monel®
Monel®
2
Hastelloy® C
Hastelloy® C
Hastelloy® C
2
Monel®
Monel®
Monel®
416 SS
Monel®
Monel®
316SS
316SS
Monel®
Monel®
Monel®
316SS
316SS
316SS
2
Monel®
316 SS
416 SS
416 SS
416 SS
2
CS
Malleable Iron
Steel
SS
Alloy Steel
Steel
Steel
Malleable Iron
Malleable Iron
Steel
316 SS
316 SS
416 SS
416 SS
2
SS
SS
SS
( )( )h and
( )( )h51
316 SS
316 SS
316 SS
Teflon®
416 SS
316 SS
2
316
316
316
SS
304
304
316
316
316
SS
( )( )M4 and
( )( )h41
316 SS
Teflon®
416 SS
316 SS
Steel
Teflon®
416 SS
416 SS
Monel®
Teflon®
416 SS
Monel®
Steel
Teflon®
416 SS
416 SS
Monel®
Teflon®
416 SS
Hastelloy® C
notes:
1. Special material valves ( )( )M1 and ( )( )H1 use
caps and lifting gear of standard materials.
2. Packing gland construction is standard for
special material valves.
3. Type C cap not available in M4, M5, M, H4, H5 or
H matterial options.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 19
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
d orIfIce, 0.110 SQ.In. [71 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLT-
JOS-EJBS-EJLTnotes:
15
25
35
45
55
65
75
16
26
36
46
56
66
76
37
47
Valve Size
Inlet
X
orifice
X
outlet
1D2
1D2
1D2
1D2
11/2D2
11/2D2
11/2D35
1D2
1D2
1D2
1D2
11/2D2
11/2D2
11/2D35
1D2
1D2
Standard
connections
anSI flanges
raised face
Back press.
limit@38°c
barg
Inlet
150
300
300
600
900
1500
2500
150
300
300
600
900
1500
2500
JoS2
19.6
19.6
19.6
19.6
41.3
41.3
51.0
19.6
19.6
19.6
19.6
41.3
41.3
51.0
300
600
57 11/2D2 900
67 11/2D2 1500
77 11/2D35 2500
14
1D2
150
24
1D2
300
34
1D2
300
44
1D2
600
12
1D2
150
22
1D2
300
32
1D2
300
42
1D2
600
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Inlet
Inlet
limit@100°f
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c
150
285
125
285 230
19.6
8.62
150
285
285
285 230
19.6 19.6
150
740
535
285 230
51.0 36.8
150
1480 1075
285 230
102
74.1
300
2220 1650
600 600
153
111
300
3705 2745
600 600
255
185
300
6000 4475
740 600
413
308
150
125
80
285 230
8.62 5.51
150
285
285
285 230
19.6 19.6
150
535
410
285 230
36.8 28.2
150
1075
825
285 230
74.1 56.8
300
1650 1235
600 600
111
85.1
300
2745 2060
600 600
185
142
300
4475 3430
740 600
308
236
150
150
300
300
300
150
150
150
150
150
150
150
150
510
1015
275
275
720
1440
1525
2540
4230
275
275
720
1440
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
215
430
650
1080
1800
285
285
600
600
740
275
275
275
275
275
275
275
275
230
230
600
600
600
230
230
230
230
230
230
230
230
35.1
70
18.9
18.9
49.6
99.3
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
5. Optional 21/2" outlet available. Contact the
factory for dimensions.
18.9
18.9
49.6
99.3
105
175
291
JBS2
15.8
15.8
15.8
15.8
41.3
41.3
41.3
15.8
15.8
15.8
15.8
41.3
41.3
41.3
14.8 19.6 15.8
29.6 19.6 15.8
44.8 41.3 41.3
74.4 41.3 41.3
124
51.0 41.3
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
10 psig [0.68 barg]
25 psig [1.72 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
use to
center to face
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
41/8
[105]
41/8
[105]
41/8
[105]
JoS-e-, JBS-e-, Jlt55, 56, 57, 65,
66, 67
75, 76, 775
page 20
41/8
[105]
51/2
[140]
CROMC-0297-US-1402
41/2
[114]
19/16
[40]
41/2
[114]
19/16
[40]
41/2
[114]
51/2
[140]
7
[178]
163/4
[426]
193/4
[502]
19
[483]
191/2
[495]
approx.
Weight
lbs (kg)
type
J
36
(16)
19/16
[40]
163/4
[426]
193/4
[502]
19
[483]
191/2
[495]
36
(16)
2
[51]
171/2
[445]
201/2
[521]
193/4
[502]
201/4
[514]
65
(29)
21/2
[64]
Copyright © 2014 Pentair
163/4
[426]
183/4
[477]
193/4
[502]
213/4
[552]
19
[483]
21
[533]
191/2
[495]
211/2
[546]
36
(16)
75
(34)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L (Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
d orIfIce, 0.110 SQ.In. [71 SQ.MM] apI effectIVe area
1000
900
16
700
47
37
26
800
36
46
Inlet temperature (°f)
600
25
500
400
15
300
35
45
200
100
44
34
14/24
0
-100
-200
12/22
-300
42
32
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500, claSS 2500
d orIfIce, 0.110 SQ.In. [71 SQ.MM] apI effectIVe area
1000
900
77
67
57
Inlet temperature (°f)
800
76
66
56
700
600
500
400
55
300
75
65
200
100
0
-100
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 21
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
e orIfIce, 0.196 SQ.In. [126 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLT-
JOS-EJBS-EJLT-
Valve Size Standard
Maximum Set pressure - psig
Maximum Set pressure - barg
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice
psig
-268°c -59°c -29°c
barg
raised face -450°f -75°f -20°f
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
15
1E2
25
1E2
35
1E2
45
1E2
55 11/2E2
65 11/2E2
75 11/2E35
16
1E2
26
1E2
36
1E2
46
1E2
56 11/2E2
66 11/2E2
76 11/2E35
150
300
300
600
900
1500
2500
150
300
300
600
900
1500
2500
150
150
150
150
300
300
300
150
150
150
150
300
300
300
57 11/2E2 900
67 11/2E2 1500
77 11/2E35 2500
14
1E2
150
24
1E2
300
34
1E2
300
44
1E2
600
12
1E2
150
22
1E2
300
32
1E2
300
42
1E2
600
300
300
300
150
150
150
150
150
150
150
150
37
47
1E2
1E2
300
600
285
285
740
1480
2220
3705
6000
150
150
275
275
720
1440
125
285
535
1075
1650
2745
4475
125
285
535
1075
1650
2745
4475
80
285
410
825
1235
2060
3430
510
1015
1525
2540
4230
275
275
720
1440
215
430
650
1080
1800
285
285
285
285
600
600
740
285
285
285
285
600
600
740
230
230
230
230
600
600
600
230
230
230
230
600
600
600
600
600
740
275
275
275
275
275
275
275
275
600
600
600
230
230
230
230
230
230
230
230
285
285
19.6
8.62
19.6 19.6
51.0 36.8
102
74.1
153
111
255
185
413
308
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
111
85.1
185
142
308
236
230
230
35.1
70
18.9
18.9
49.6
99.3
18.9
18.9
49.6
99.3
105
175
291
19.6
19.6
19.6
19.6
41.3
41.3
51.0
19.6
19.6
19.6
19.6
41.3
41.3
51.0
15.8
15.8
15.8
15.8
41.3
41.3
41.3
15.8
15.8
15.8
15.8
41.3
41.3
41.3
14.8 19.6 15.8
29.6 19.6 15.8
44.8 41.3 41.3
74.4 41.3 41.3
124
51.0 41.3
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
5. Optional 21/2" outlet available. Contact the
factory for dimensions.
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
8 psig [0.55 barg]
25 psig [1.72 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-ecenter to face
12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
41/8
[105]
41/8
[105]
41/8
[105]
JoS-e-, JBS-e-, Jlt55, 56, 57, 65,
66, 67
75, 76, 775
page 22
41/8
[105]
51/2
[140]
CROMC-0297-US-1402
41/2
[114]
19/16
[40]
41/2
[114]
19/16
[40]
41/2
[114]
51/2
[140]
7
[178]
19/16
[40]
2
[51]
21/2
[64]
Copyright © 2014 Pentair
163/4
[426]
163/4
[426]
163/4
[426]
171/2
[445]
183/4
[477]
193/4
[502]
193/4
[502]
193/4
[502]
201/2
[521]
213/4
[552]
19
[483]
19
[483]
19
[483]
193/4
[502]
21
[533]
191/2
[495]
191/2
[495]
191/2
[495]
201/4
[514]
211/2
[546]
approx.
Weight
lbs (kg)
type
J
36
(16)
36
(16)
36
(16)
65
(29)
75
(34)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
e orIfIce, 0.196 SQ.In. [126 SQ.MM] apI effectIVe area
1000
900
37
47
800
16
Inlet temperature (°f)
700
26
36
46
600
500
25
400
15
300
35
45
200
100
14/24
44
34
0
-100
-200
32
12/22
42
-300
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500, claSS 2500
e orIfIce, 0.196 SQ.In. [126 SQ.MM] apI effectIVe area
1000
900
57
67
77
800
Inlet temperature (°f)
66
56
700
76
600
500
400
55
65
75
300
200
100
0
-100
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 23
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
f orIfIce, 0.307 SQ.In. [198 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-E- 55
JBS-E- 65
JLT75
JOS-E- 16
JBS-E- 26
JLT36
JOS-H-E- 46
JOS-E- 56
JBS-E- 66
JLT76
JOS-EJBS-E- 37
JLT47
JOS-H-EJOS-E- 57
JBS-E- 67
JLT77
14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
Valve Size
Inlet
X
orifice
X
outlet
11/2F2
11/2F2
11/2F2
11/2F2
11/2F35
11/2F35
11/2F35
11/2F2
11/2F2
11/2F2
11/2F2
11/2F35
11/2F35
11/2F35
11/2F2
11/2F2
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
Standard
connections
anSI flanges
raised face
Inlet
150
300
300
600
900
1500
2500
150
300
300
600
900
1500
2500
300
600
11/2F35 900
11/2F35 1500
11/2F35 2500
11/2F2 150
11/2F2 300
11/2F2 300
11/2F2 600
11/2F2 150
11/2F2 300
11/2F2 300
11/2F2 600
150
150
150
150
300
300
300
150
150
150
150
300
300
300
285
285
740
1480
2220
3705
5000
150
150
300
300
300
150
150
150
150
150
150
150
150
275
275
720
1440
125
285
535
1075
1650
2745
4475
125
285
535
1075
1650
2745
4475
80
285
410
825
1235
2060
3430
510
1015
1525
2540
4230
275
275
720
1440
215
430
650
1080
1800
285
285
285
285
740
740
740
285
285
285
285
740
740
740
230
230
230
230
500
500
500
230
230
230
230
500
500
500
740
740
740
275
275
275
275
275
275
275
275
500
500
500
230
230
230
230
230
230
230
230
285
285
19.6
8.62
19.6 19.6
51.0 36.8
102
74.1
153
111
255
185
344
308
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
111
85.1
185
142
308
236
230
230
35.1
70
18.9
18.9
49.6
99.3
notes:
18.9
18.9
49.6
99.3
105
175
291
19.6
19.6
19.6
19.6
51.0
51.0
51.0
19.6
19.6
19.6
19.6
51.0
51.0
51.0
15.8
15.8
15.8
15.8
34.4
34.4
34.4
15.8
15.8
15.8
15.8
34.4
34.4
34.4
14.8 19.6 15.8
29.6 19.6 15.8
44.8 51.0 34.4
74.4 51.0 34.4
124
51.0 34.4
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
5. Optional 21/2" outlet available. Contact the
factory for dimensions.
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
5 psig [0.34 barg]
10 psig [0.68 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
55, 56, 57, 65,
66, 67
75, 76, 775
page 24
47/8
[124]
43/4
[121]
13/4
[44]
201/4
[515]
231/4
[591]
221/2
[572]
231/4
[591]
approx.
Weight
lbs (kg)
type
J
50
(23)
47/8
[124]
47/8
[124]
6
[152]
6
[152]
13/4
[44]
13/4
[44]
201/4
[515]
201/4
[515]
231/4
[591]
231/4
[591]
221/2
[572]
221/2
[572]
231/4
[591]
231/4
[591]
50
(23)
50
(23)
51/2
[140]
7
[178]
21/2
[64]
23
[584]
263/4
[679]
26
[660]
263/4
[679]
85
(39)
47/8
[124]
CROMC-0297-US-1402
61/2
[165]
2
[51]
Copyright © 2014 Pentair
20
[508]
23
[584]
211/4
[540]
213/4
[552]
65
(29)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
f orIfIce, 0.307 SQ.In. [198 SQ.MM] apI effectIVe area
1000
900
37
47
800
Inlet temperature (°f)
26
16
700
46
36
600
500
25
400
15
35
45
300
200
100
34
14/24
44
0
-100
-200
12/22
42
32
-300
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500, claSS 2500
f orIfIce, 0.307 SQ.In. [198 SQ.MM] apI effectIVe area
1000
900
57
67
77
800
56
66
76
Inlet temperature (°f)
700
600
500
65
55
75
400
300
200
100
0
-100
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 25
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
G orIfIce, 0.503 SQ.In. [325 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-EJBS-EJLT-
Valve Size
Inlet
X
orifice
X
outlet
Inlet
15
25
35
45
55
65
75
16
26
36
46
56
66
76
11/2G35
11/2G35
11/2G35
11/2G35
11/2G35
2G3
2G3
11/2G35
11/2G35
11/2G35
11/2G35
11/2G35
2G3
2G3
57
67
77
14
24
34
44
12
22
32
42
11/2G35 900
2G3 1500
2G3 2500
11/2G35 150
11/2G35 300
11/2G35 300
11/2G35 600
11/2G35 150
11/2G35 300
11/2G35 300
11/2G35 600
37 11/2G35
47 11/2G35
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
Standard
connections
anSI flanges
raised face
150
300
300
600
900
1500
2500
150
300
300
600
900
1500
2500
300
600
150
150
150
150
300
300
300
150
150
150
150
300
300
300
285
285
740
1480
2220
3705
3705
150
150
300
300
300
150
150
150
150
150
150
150
150
275
275
720
1440
125
285
535
1075
1650
2745
3705
125
285
535
1075
1650
2745
3705
80
285
410
825
1235
2060
3430
510
1015
1525
2540
3705
275
275
720
1440
215
430
650
1080
1800
285
285
285
285
740
740
740
285
285
285
285
740
740
740
230
230
230
230
470
470
470
230
230
230
230
470
470
470
740
740
740
275
275
275
275
275
275
275
275
470
470
500
230
230
230
230
230
230
230
230
285
285
19.6
8.62
19.6 19.6
51.0 36.8
102
74.1
153
111
255
185
255
255
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
111
85.1
185
142
255
236
230
230
35.1
70
18.9
18.9
49.6
99.3
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
5. Optional 21/2" outlet available. Contact the
factory for dimensions.
18.9
18.9
49.6
99.3
105
175
255
19.6
19.6
19.6
19.6
51.0
51.0
51.0
19.6
19.6
19.6
19.6
51.0
51.0
51.0
15.8
15.8
15.8
15.8
32.4
32.4
32.4
15.8
15.8
15.8
15.8
32.4
32.4
32.4
14.8 19.6 15.8
29.6 19.6 15.8
44.8 51.0 32.4
74.4 51.0 32.4
124
51.0 32.4
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
18.9 15.8
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
5 psig [0.34 barg]
15 psig [1.03 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e, JBS-e, Jlt-, JoS-h-e
12, 14, 15, 16,
22, 24, 25, 265
32, 34, 35, 36,
37, 475
42, 44, 45, 465
55, 56, 575
65, 66, 67, 75,
76, 77
page 26
47/8
[124]
47/8
[124]
47/8
[124]
47/8
[124]
61/8
[140]
CROMC-0297-US-1402
43/4
[121]
6
[152]
6
[152]
61/2
[165]
63/4
[171]
13/4
[44]
13/4
[44]
13/4
[44]
2
[51]
23/4
[70]
Copyright © 2014 Pentair
201/4
[515]
201/4
[515]
201/4
[515]
221/4
[566]
231/4
[591]
231/4
[591]
231/4
[591]
231/4
[591]
26
[660]
27
[686]
221/2
[572]
221/2
[572]
221/2
[572]
251/4
[641]
261/4
[667]
231/4
[591]
231/4
[591]
231/4
[591]
26
[660]
27
[686]
approx.
Weight
lbs (kg)
type
J
50
(23)
50
(23)
50
(23)
70
(32)
90
(41)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
G orIfIce, 0.503 SQ.In. [325 SQ.MM] apI effectIVe area
1000
900
47
37
800
16
Inlet temperature (°f)
700
26
36
46
600
500
25
400
45
15
35
300
200
100
34
14/24
44
0
-100
-200
12/22
42
32
-300
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500, claSS 2500
G orIfIce, 0.503 SQ.In. [325 SQ.MM] apI effectIVe area
1000
900
57
77
67
800
56
76
66
Inlet temperature (°f)
700
600
500
55
400
75
65
300
200
100
0
-100
0
500
1000
1500
2000
2500
3000
3500
4000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 27
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
h orIfIce, 0.785 SQ.In. [506 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLT-
Valve Size
Inlet
X
orifice
X
outlet
11/2H3
Inlet
55
65
2H3
2H3
900
1500
56
66
15
25 11/2H3
35
2H3
45
2H3
16 11/2H3
26 11/2H3
36
2H3
46
2H3
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
Standard
connections
anSI flanges
raised face
150
300
300
600
150
150
150
150
285
285
740
1480
150
300
2220
2750
125
285
535
1075
1610
2685
230
230
230
230
285
285
285
285
230
230
230
230
285
740
230
415
153
189
8.62
19.6
36.8
74.1
111
185
15.8
15.8
15.8
15.8
19.6
19.6
19.6
19.6
15.8
15.8
15.8
15.8
19.6 15.8
51.0 28.6
2H3
2H3
900
1500
37
47
2H3
2H3
300
600
150
150
510
815
215
430
285
285
230
230
35.1
56.2
14.8 19.6 15.8
29.6 19.6 15.8
57
67
2H3
2H3
900
1500
150
300
1225
2040
650
1080
285
740
230
415
84.4
140
44.8 19.6 15.8
74.4 51.0 28.6
14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
11/2H3
11/2H3
2H3
2H3
11/2H3
11/2H3
2H3
2H3
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
275
275
720
1440
275
275
720
1440
1235
2060
285
740
275
275
275
275
275
275
275
275
230
415
230
230
230
230
230
230
230
230
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
19.6
19.6
19.6
19.6
150
150
150
150
1610
2685
80
285
410
825
19.6
19.6
51.0
102
150
300
300
600
150
300
125
285
535
1075
285
285
285
285
111
185
18.9
18.9
49.6
99.3
notes:
18.9
18.9
49.6
99.3
85.1
142
19.6 15.8
51.0 28.6
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
4. Series Designations: JLT-JOS-E and
JLT-JBS-E signify Series JOS-E, JBS-E
with liquid trim for liquid and gas service.
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
5 psig [0.34 barg]
10 psig [0.68 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36,
37, 47
42, 44, 45, 46
55, 56, 57, 65,
66, 67
page 28
51/8
[130]
51/8
[130]
61/16
[154]
61/16
[154]
CROMC-0297-US-1402
47/8
[124]
47/8
[124]
63/8
[162]
63/8
[162]
111/16
[43]
113/16
[46]
113/16
[46]
25/16
[59]
Copyright © 2014 Pentair
201/2
[521]
201/2
[521]
23
[585]
241/2
[623]
231/2
[597]
231/2
[597]
263/4
[679]
281/4
[718]
223/4
[578]
223/4
[578]
26
[660]
271/2
[699]
231/4
[591]
231/4
[591]
263/4
[679]
281/4
[718]
approx.
Weight
lbs (kg)
type
J
55
(25)
60
(27)
75
(34)
100
(50)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
h orIfIce, 0.785 SQ.In. [506 SQ.MM] apI effectIVe area
1000
900
37
47
800
16
700
26
46
36
Inlet temperature (°f)
600
500
25
45
400
15
35
300
200
100
14/24
44
34
0
-100
-200
12/22
-300
42
32
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500
h orIfIce, 0.785 SQ.In. [506 SQ.MM] apI effectIVe area
1000
900
57
67
800
56
66
Inlet temperature (°f)
700
600
500
400
65
55
300
200
100
0
-100
0
500
1000
1500
2000
2500
3000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 29
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
J orIfIce, 1.287 SQ.In. [830 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-E-5
JLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLT-
15
25
35
45
Valve Size
Inlet
X
orifice
X
outlet
2J3
2J3
3J45
3J45
16
26
36
46
2J3
2J3
3J45
3J45
55
65
Inlet
150
300
300
600
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
150
285
125
285 230
19.6
8.62
19.6 15.8
150
285
285
285 230
19.6 19.6
19.6 15.8
150
740
535
285 230
51.0 36.8
19.6 15.8
150
1480 1075
285 230
102
74.1
19.6 15.8
150
300
300
600
150
150
150
150
Standard
connections
anSI flanges
raised face
3J4
3J4
900
1500
3J4
3J4
900
1500
37
47
3J45
3J4
300
600
150
150
510
815
57
67
3J45
3J4
900
1500
150
300
1225
2040
56
66
14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
2J3
2J3
3J45
3J45
2J3
2J3
3J45
3J45
150
300
300
600
150
300
300
600
150
300
2220
2700
150
300
150
150
150
150
150
150
150
150
1610
2685
125
285
535
1075
1610
2685
275
275
500
625
275
275
720
1440
285
600
80
285
410
825
230
230
153
186
230
230
230
230
215
430
285
285
230
230
35.1
56.2
14.8 19.6 15.8
29.6 19.6 15.8
650
1080
285
600
230
230
84.4
140
44.8 19.6 15.8
74.4 41.3 15.8
1235
2060
285
600
275
275
275
275
275
275
275
275
230
230
230
230
230
230
230
230
230
230
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
19.6 15.8
41.3 15.8
285
285
285
285
111
186
18.9
18.9
34.4
43.1
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
111
185
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
5. Optional 21/2" inlet available. Contact the factory
for dimensions.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
18.9
18.9
49.6
99.3
85.1
142
19.6
19.6
19.6
19.6
15.8
15.8
15.8
15.8
19.6 15.8
41.3 15.8
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
5 psig [0.34 barg]
9 psig [0.62 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36,
37, 47
53/8
[137]
47/8
[124]
42, 44, 45, 46
71/4
[184]
71/4
[184]
71/8
[181]
71/8
[181]
55, 56, 65,
66, 67
71/4
[184]
71/8
[181]
57
page 30
71/4
[184]
CROMC-0297-US-1402
71/8
[181]
111/16
[43]
203/4
[527]
233/4
[603]
231/4
[591]
233/4
[603]
approx.
Weight
lbs (kg)
type
J
66
(30)
21/4
[54]
21/4
[54]
245/8
[632]
267/8
[683]
285/8
[727]
305/8
[773]
277/8
[703]
297/8
[759]
285/8
[727]
305/8
[778]
100
(45)
128
(57)
211/16
[68]
283/4
[826]
321/2
[826]
313/4
[806]
321/2
[826]
155
(70)
211/16
[68]
Copyright © 2014 Pentair
265/8
[683]
305/8
[773]
297/8
[759]
305/8
[778]
151
(68)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
J orIfIce, 1.287 SQ.In. [830 SQ.MM] apI effectIVe area
1000
900
47
37
800
16
700
26
46
36
Inlet temperature (°f)
600
500
25
400
45
15
300
35
200
100
14/24
44
34
0
-100
-200
12/22
-300
42
32
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500
J orIfIce, 1.287 SQ.In. [830 SQ.MM] apI effectIVe area
1000
900
57
67
800
66
56
Inlet temperature (°f)
700
600
500
55
400
65
300
200
100
0
-100
0
500
1000
1500
2000
2500
3000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 31
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
K orIfIce, 1.838 SQ.In. [1186 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-E55
JBS-E65
JLTJOS-E- 16
JBS-E- 26
JLT36
JOS-H-E- 46
JOS-E56
JBS-E66
JLTJOS-EJBS-E- 37
JLT47
JOS-H-EJOS-E57
JBS-E67
JLT14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
Valve Size
Inlet
X
orifice
X
outlet
3K4
3K4
3K4
3K4
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
Standard
connections
anSI flanges
raised face
150
300
300
600
Inlet
150
150
150
150
285
285
740
1480
900
1500
150
300
3K6
3K6
900
1500
150
300
3K4
3K4
300
600
150
150
510
815
3K6
3K6
900
1500
150
300
1225
2040
3K4
3K4
3K4
3K4
3K4
3K4
3K4
3K4
150
300
300
600
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
150
150
150
150
1610
2220
285
285
285
285
3K6
3K6
3K4
3K4
3K4
3K4
2220
2220
125
285
535
1075
125
285
535
1075
1610
2220
275
275
525
600
275
275
720
1440
285
600
80
285
410
825
150
150
150
200
19.6
19.6
51.0
102
200
200
153
153
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
111
153
10.3
10.3
10.3
13.7
19.6
19.6
19.6
19.6
10.3
10.3
10.3
13.7
19.6 13.7
41.3 13.7
150
150
150
200
215
430
285
285
150
200
35.1
56.2
14.8 19.6 10.3
29.6 19.6 13.7
650
1080
285
600
200
200
84.4
140
44.8 19.6 13.7
74.4 41.3 13.7
1235
2060
285
600
275
275
275
275
275
275
275
275
200
200
150
150
150
200
150
150
150
200
8.62 5.51
19.6 19.6
36.8 28.2
74.1 56.8
19.6
19.6
19.6
19.6
285
285
285
285
127
153
18.9
18.9
36.2
41.3
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
8.62
19.6
36.8
74.1
4. Series Designations: JLT-JOS-E and
JLT-JBS-E signify Series JOS-E, JBS-E
with liquid trim for liquid and gas service.
18.9
18.9
49.6
99.3
85.1
142
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
10.3
10.3
10.3
13.7
10.3
10.3
10.3
13.7
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
19.6 13.7
41.3 13.7
5 psig [0.34 barg]
9 psig [0.62 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36,
37, 47
42, 44, 45, 46
55, 56, 57
65, 66, 67
page 32
61/8
[156]
63/8
[162]
61/8
[156]
71/4
[184]
63/8
[162]
71/8
[181]
73/4
[197]
81/2
[216]
713/16
[198]
CROMC-0297-US-1402
81/2
[216]
21/8
[54]
26
[661]
293/4
[756]
29
[737]
293/4
[756]
approx.
Weight
lbs (kg)
type
J
116
(52)
21/8
[54]
21/8
[54]
26
[661]
291/4
[743]
293/4
[756]
33
[838]
29
[737]
321/2
[826]
293/4
[756]
331/4
[845]
117
(53)
160
(73)
211/16
[68]
331/2
[851]
39
[991]
38
[965]
383/4
[984]
195
(88)
211/16
[68]
Copyright © 2014 Pentair
331/2
[851]
39
[991]
38
[965]
383/4
[984]
185
(84)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart - to anSI claSS 600
K orIfIce, 1.838 SQ.In. [1186 SQ.MM] apI effectIVe area
1000
900
37
47
800
16
Inlet temperature (°f)
700
26
46
36
600
25
500
15
400
35
45
300
200
100
14/24
0
44
34
-100
-200
32
12/22
42
-300
-400
-500
0
200
400
600
800
1000
1200
1400
Set pressure (psig)
preSSure/teMperature lIMIt chart - anSI claSS 900, claSS 1500
K orIfIce, 1.838 SQ.In. [1186 SQ.MM] apI effectIVe area
1000
900
57
67
800
66
56
Inlet temperature (°f)
700
600
500
65
400
55
300
200
100
0
-100
0
500
1000
1500
2000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 33
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
l orIfIce, 2.853 SQ.In. [1841 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-EJBS-E- 55
JLTJOS-E- 16
JBS-E- 26
JLT36
JOS-H-E- 46
JOS-E56
JBS-E66
JLTJOS-EJBS-E- 37
JLT47
JOS-H-EJOS-E57
JBS-E67
JLT14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
Valve Size
Inlet
X
orifice
X
outlet
3L4
3L4
4L6
4L6
Inlet
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
3L4
3L4
4L6
4L6
900
4L6
4L6
150
300
300
600
150
900
1500
150
150
150
150
4L6
4L6
300
600
150
150
510
1000
4L6
4L6
900
1500
150
150
1500
1500
4L6
3L4
3L4
4L6
4L6
3L4
3L4
4L6
4L6
Standard
connections
anSI flanges
raised face
150
300
300
600
150
300
300
600
150
300
300
600
150
150
150
150
285
285
740
1000
1500
150
150
150
150
150
150
150
150
150
150
125
285
535
1000
1500
125
285
535
1000
1500
1500
275
275
535
535
275
275
720
1000
285
285
285
285
100
100
170
170
285
285
285
285
100
100
170
170
215
430
285
285
170
170
650
1080
285
285
170
170
285
80
285
410
825
1235
1500
285
285
275
275
275
275
275
275
275
275
19.6
19.6
51.0
68.9
170
103
170
170
100
100
170
170
100
100
170
170
8.62
19.6
36.8
68.9
19.6 6.89
19.6 6.89
19.6 11.7
19.6 11.7
103
8.62 5.51
19.6 19.6
36.8 28.2
68.9 56.8
103
103
85.1
103
35.1
68.9
18.9
18.9
36.8
36.8
notes:
18.9
18.9
49.6
68.9
103
103
19.6 11.7
19.6 6.89
19.6 6.89
19.6 11.7
19.6 11.7
19.6 11.7
19.6 11.7
14.8 19.6 11.7
29.6 19.6 11.7
44.8 19.6 11.7
74.4 19.6 11.7
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
6.89
6.89
11.7
11.7
6.89
6.89
11.7
11.7
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
6 psig [0.41 barg]
8 psig [0.55 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
55, 56, 57, 66, 67
page 34
61/8
[156]
71/16
[179]
71/16
[179]
73/4
[197]
CROMC-0297-US-1402
61/2
[165]
71/8
[181]
8
[203]
83/4
[222]
2
[51]
21/8
[54]
23/8
[60]
215/16
[75]
Copyright © 2014 Pentair
301/4
[769]
301/4
[769]
311/2
[801]
341/4
[871]
34
[864]
34
[864]
351/4
[895]
393/4
[1010]
331/4
[845]
341/4
[870]
343/4
[883]
383/4
[984]
34
[864]
341/4
[870]
351/4
[895]
391/2
[1003]
approx.
Weight
lbs (kg)
type
J
152
(69)
192
(87)
226
(103)
270
(122)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
l orIfIce, 2.853 SQ.In. [1841 SQ.MM] apI effectIVe area
1000
900
37
47
57
800
16
700
26
36
46
66
56
Inlet temperature (°f)
600
500
25
400
300
15
45
35
55
200
100
34
14/24
0
44
-100
-200
12/22
-300
32/42
-400
-500
0
200
400
600
800
1000
1200
1400
1600
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 35
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
M orIfIce, 3.60 SQ.In. [2323 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLT-
15
25
35
45
16
26
36
46
Valve Size
Inlet
X
orifice
X
outlet
4M6
4M6
4M6
4M6
4M6
4M6
4M6
4M6
37
47
57
56
14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
Inlet
150
300
300
600
150
300
300
600
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
150
285
125
285
80
19.6
8.62
19.6 5.51
150
285
285
285
80
19.6 19.6
19.6 5.51
150
740
535
285 160
51.0 36.8
19.6 11.0
150
1100 1075
285 160
75.8 74.1
19.6 11.0
150
125
80
285
80
8.62 5.51
19.6 5.51
150
285
285
285
80
19.6 19.6
19.6 5.51
150
535
410
285 160
36.8 28.2
19.6 11.0
150
1075
825
285 160
74.1 56.8
19.6 11.0
4M6
4M6
300
600
150
150
510
1015
4M6
900
150
1100
4M6
4M6
4M6
4M6
4M6
4M6
4M6
4M6
4M6
Standard
connections
anSI flanges
raised face
900
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
150
1100
275
275
525
600
275
275
720
1100
1100
285
160
215
430
285
285
650
285
275
275
275
275
275
275
275
275
75.8
19.6 11.0
160
160
35.1
70
14.8 19.6 11.0
29.6 19.6 11.0
160
75.8
44.8 19.6 11.0
80
80
160
160
80
80
160
160
75.8
18.9
18.9
36.2
41.3
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
18.9
18.9
49.6
75.8
5.51
5.51
11.0
11.0
5.51
5.51
11.0
11.0
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
8 psig [0.55 barg]
10 psig [0.68 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-ecenter to face
12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
56, 57
page 36
7
[178]
7
[178]
7
[178]
73/4
[197]
CROMC-0297-US-1402
71/4
[184]
71/4
[184]
8
[203]
83/4
[222]
21/8
[54]
21/8
[54]
27/16
[62]
29/16
[65]
Copyright © 2014 Pentair
293/4
[756]
321/4
[820]
361/2
[925]
371/4
[947]
331/2
[851]
36
[914]
42
[1067]
423/4
[1086]
33
[838]
351/2
[902]
41
[1041]
413/4
[1060]
333/4
[857]
36
[914]
413/4
[1060]
421/2
[1080]
approx.
Weight
lbs (kg)
type
J
201
(91)
222
(101)
265
(120)
290
(132)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
M orIfIce, 3.60 SQ.In. [2323 SQ.MM] apI effectIVe area
1000
37
900
57
47
800
16
700
36
26
56
46
Inlet temperature (°f)
600
500
25
45
400
35
15
300
200
100
14/24
34
44
0
-100
-200
12/22
-300
32
42
-400
-500
0
200
400
600
800
1000
1200
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 37
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
n orIfIce, 4.34 SQ.In. [2800 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-E- 16
JBS-E- 26
JLT36
JOS-H-E- 46
JOS-EJBS-E- 37
JLT47
JOS-H-E14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
Valve Size Standard
Maximum Set pressure - psig
Maximum Set pressure - barg
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice
psig
-268°c -59°c -29°c
barg
raised face -450°f -75°f -20°f
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
4N6
4N6
4N6
4N6
4N6
4N6
4N6
4N6
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
4N6
4N6
4N6
4N6
4N6
4N6
4N6
4N6
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
4N6
4N6
300
600
285
285
740
1000
150
150
275
275
450
500
125
285
535
1000
125
285
535
1000
275
275
720
1000
80
285
410
825
510
1000
215
430
285
285
285
285
285
285
285
285
80
80
160
160
80
80
160
160
275
275
275
275
275
275
275
275
80
80
160
160
80
80
160
160
285
285
19.6
19.6
51.0
68.9
160
160
18.9
18.9
31.0
34.4
8.62
19.6
36.8
68.9
8.62 5.51
19.6 19.6
36.8 28.2
68.9 56.8
18.9
18.9
49.6
68.9
35.1
68.9
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
5.51
5.51
11.0
11.0
5.51
5.51
11.0
11.0
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
5.51
5.51
11.0
11.0
5.51
5.51
11.0
11.0
14.8 19.6 11.0
29.6 19.6 11.0
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
4. Series Designations: JLT-JOS-E and
JLT-JBS-E signify Series JOS-E, JBS-E
with liquid trim for liquid and gas service.
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
8 psig [0.55 barg]
10 psig [0.68 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
page 38
73/4
[197]
73/4
[197]
73/4
[197]
CROMC-0297-US-1402
81/4
[210]
81/4
[210]
83/4
[222]
21/8
[54]
21/8
[54]
23/8
[60]
Copyright © 2014 Pentair
373/4
[959]
373/4
[959]
373/4
[959]
431/4
[1099]
431/4
[1099]
431/4
[1099]
421/4
[1073]
421/4
[1073]
421/4
[1073]
43
[1092]
43
[1092]
43
[1092]
approx.
Weight
lbs (kg)
type
J
260
(118)
280
(127)
297
(135)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
n orIfIce, 4.34 SQ.In. [2800 SQ.MM] apI effectIVe area
1000
900
47
37
800
26
16
700
36
46
Inlet temperature (°f)
600
500
25
45
400
35
300
15
200
100
34
14/24
0
44
-100
-200
12/22
-300
32
42
-400
-500
0
200
400
600
800
1000
1200
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 39
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
p orIfIce, 6.38 SQ.In. [4116 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLT-
JOS-EJBS-EJLT-
15
25
35
45
16
26
36
46
37
47
14
24
34
44
12
22
32
42
15
25
35
16
26
36
37
14
24
34
12
22
32
Valve Size Standard
Maximum Set pressure - psig
Maximum Set pressure - barg
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice
psig
-268°c -59°c -29°c
barg
raised face -450°f -75°f -20°f
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
4P6
4P6
4P6
4P6
4P6
4P6
4P6
4P6
150
300
300
600
150
300
300
600
150
150
150
150
150
150
150
150
4P6
4P6
4P6
4P6
4P6
4P6
4P6
4P6
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
10V14
150
300
300
600
150
300
300
600
150
300
300
150
300
300
300
150
300
300
150
300
300
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
4P6
4P6
300
600
285
285
525
1000
150
150
175
175
300
480
70
70
70
125
285
525
1000
125
285
525
1000
275
275
525
1000
100
100
316
100
100
316
100
100
230
100
100
230
80
285
410
825
510
1000
80
100
230
100
215
430
100
285
285
285
285
285
285
285
285
80
80
150
150
80
80
150
150
275
275
275
275
275
275
275
275
60
60
200
60
60
120
60
60
60
200
60
60
60
80
80
150
150
80
80
150
150
60
60
120
60
60
120
60
60
60
120
42
42
42
285
285
19.6
19.6
36.2
68.9
150
150
12.0
12.0
20.6
33.1
8.62
19.6
36.2
68.9
8.62 5.51
19.6 19.6
36.2 28.2
68.9 56.8
18.9
18.9
36.2
68.9
35.1
68.9
19.6
19.6
19.6
19.6
19.6
19.6
19.6
19.6
5.51
5.51
10.3
10.3
5.51
5.51
10.3
10.3
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
5.51
5.51
10.3
10.3
5.51
5.51
10.3
10.3
14.8 19.6 10.3
29.6 19.6 10.3
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
page 40
71/8
[181]
87/8
[225]
87/8
[225]
87/8
[225]
CROMC-0297-US-1402
9
[229]
10
[254]
10
[254]
10
[254]
21/8
[54]
21/8
[54]
29/16
[65]
25/8
Copyright © 2014 Pentair
37
[940]
383/4
[984]
41
[1041]
41
[1041]
421/2
[1080]
441/4
[1124]
461/2
[1181]
461/2
[1181]
411/2
[1054]
431/4
[1099]
451/2
[1156]
451/2
[1156]
421/4
[1073]
44
[1118]
461/4
[1175]
461/4
[1175]
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
7 psig [0.48 barg]
8 psig [0.55 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
approx.
Weight
lbs (kg)
type
J
270
(122)
286
(130)
401
(182)
416
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
p orIfIce, 6.38 SQ.In. [4116 SQ.MM] apI effectIVe area
1000
900
47
37
800
16
700
26
36
46
600
Inlet temperature (°f)
500
25
400
15
300
35
45
200
100
44
34
14/24
0
-100
-200
12/22
-300
32
42
-400
-500
0
200
400
600
800
1000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 41
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
Q orIfIce, 11.05 SQ.In. [7129 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-EJBS-EJLTJOS-H-E-
16
26
36
46
Valve Size Standard
Maximum Set pressure - psig
Maximum Set pressure - barg
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice
psig
-268°c -59°c -29°c
barg
raised face -450°f -75°f -20°f
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
6Q8
6Q8
6Q8
6Q8
6Q8 (HP)
6Q8
6Q8
6Q8
6Q8
6Q8 (HP)
150
300
300
600
600
150
300
300
600
600
150
150
150
150
150
150
150
150
150
150
6Q8
6Q8
6Q8
6Q8
6Q8 (HP)
6Q8
6Q8
6Q8
6Q8
6Q8 (HP)
6Q8
6Q8
6Q8
6Q8
6Q8
150
300
300
600
600
150
300
300
600
600
600
600
600
600
600
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
JOS-EJBS-E- 37
6Q8
300
JLT47
6Q8
600
JOS-H-E6Q8 (HP) 600
14
JOS-E24
JBS-E34
JLT44
12
JOS-E22
JBS-E32
JLT42
42
44
JOS-HP-E
45
JBS-HP-E
46
47
165
165
300
600
1000
150
150
150
165
165
250
300
561
561
125
165
300
600
1000
125
165
300
600
1000
165
165
300
600
1000
1000
1000
1000
1000
80
165
300
600
825
165
600
1000
825
1000
165
430
430
430
115
115
115
115
115
115
115
115
115
115
70
70
115
115
115
70
70
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
70
70
115
115
115
70
70
115
115
115
115
115
115
115
115
115
115
115
11.3
11.3
20.6
41.3
68.9
115
115
115
11.3
11.3
17.2
20.6
38.7
38.7
notes:
8.62
11.3
20.6
41.3
68.9
8.62
11.3
20.6
41.3
68.9
11.3
11.3
20.6
41.3
68.9
68.9
68.9
68.9
68.9
5.51
11.3
20.6
41.3
68.9
11.3
41.3
68.9
56.9
68.9
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
4.82
4.82
7.92
7.92
7.92
4.82
4.82
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
29.6 7.92
4.82
4.82
7.92
7.92
7.92
4.82
4.82
7.92
7.92
7.92
7.92
7.92
7.92
7.92
7.92
11.3 7.92 7.92
29.6 7.92 7.92
68.9 7.92 7.92
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
7 psig [0.48 barg]
8 psig [0.55 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-ecenter to face
12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
42, 44, 45, 46, 47
97/16
[240]
97/16
[240]
97/16
[240]
JoS-hp-e-, JBS-hp-e42, 44, 45, 46, 47
page 42
97/16
[240]
CROMC-0297-US-1402
91/2
[241]
25/16
[59]
91/2
[241]
421/4
[1073]
473/4
[1213]
91/2
[241]
25/16
[59]
215/16
[75]
421/4
[1073]
473/4
[1213]
91/2
[241]
215/16
[75]
491/4
[1251]
Copyright © 2014 Pentair
461/4
[1175]
463/4
[1187]
471/2
[1207]
approx.
Weight
lbs (kg)
type
J
481
(218)
513/4
[1314]
463/4
[1187]
503/4
[1289]
471/2
[1207]
492
(223)
543/4
[1391]
533/4
[1340]
541/2
[1384]
585
(265)
511/2
[1308]
565
(256)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
Q orIfIce, 11.05 SQ.In. [7129 SQ.MM] apI effectIVe area
1000
950
-37
-47
850
HP-47
750
-26
-16
HP-46
-46
-36
650
Inlet temperature (°f)
550
HP-45
450
-15
-25
350
-45
-35
250
150
50
-44
-34
-14/24
HP-44
-50
-150
-12/-22
-250
-32
-42
HP-42
-350
-450
0
100
200
300
400
500
600
700
800
900
1000
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 43
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
r orIfIce, 16.0 SQ.In. [10,323 SQ.MM] apI effectIVe area
Valve
Series
JOS-E- 15
JBS-E- 25
JLT35
JOS-H-E-1 45
JOS-EJBS-EJLTJOS-H-E-
16
26
36
46
Valve Size Standard
Maximum Set pressure - psig
Maximum Set pressure - barg
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice
psig
-268°c -59°c -29°c
barg
raised face -450°f -75°f -20°f
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
6R8
150
6R8
300
6R10 300
6R10 600
6R10(HP) 600
6R8
150
6R8
300
6R10 300
6R10 600
6R10(HP) 600
JOS-EJBS-E- 37
6R8
300
JLT47
6R10 600
JOS-H-E6R10(HP) 600
14
6R8
150
JOS-E24
6R8
300
JBS-E34
6R10 300
JLT44
6R10 600
6R10(HP) 600
12
6R8
150
JOS-E22
6R8
300
JBS-E32
6R10 300
JLT42
6R10 600
6R10(HP) 600
42
6R10 600
44
6R10 600
JOS-HP-E
45
6R10 600
JBS-HP-E
46
6R10 600
47
6R10 600
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
100
100
230
300
850
55
55
150
200
395
200
100
100
230
300
850
100
100
230
300
850
100
100
230
300
850
300
300
300
300
80
100
230
300
825
100
300
850
300
300
100
300
430
300
60
60
100
100
100
60
60
100
100
100
50
50
100
100
100
40
50
100
100
100
60
50
100 100
100 100
60
50
60
50
100 100
100 100
100 100
37 27.5
37 27.5
100
75
100 100
100 100
100 100
100 100
100 100
100 100
100 100
6.89 6.89
6.89 6.89
15.8 15.8
20.6 20.6
58.6 58.6
6.89 5.51
6.89 6.89
15.8 15.8
20.6 20.6
58.6 56.9
3.79
3.79
10.3
13.7
27.2
13.8
notes:
6.89
6.89
15.8
20.6
58.6
20.7
20.7
20.7
20.7
4.13
4.13
6.89
6.89
6.89
4.13
4.13
6.89
6.89
6.89
6.89 6.89 4.13
20.6 20.6 6.89
58.6 29.65 6.89
4.13
4.13
6.89
6.89
6.89
2.55
2.55
6.89
6.89
6.89
6.89
6.89
6.89
20.7
6.89
20.7 20.7 6.89
3.44
3.44
6.89
6.89
6.89
2.75
3.44
6.89
6.89
6.89
4.13
6.89
6.89
3.44
3.44
6.89
6.89
6.89
1.89
1.89
5.17
6.89
6.89
6.89
6.89
6.89
6.89
6.89
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
8 psig [0.55 barg]
8 psig [0.55 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve Series
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26, 37
32, 34, 35, 36
42, 44, 45, 46, 47
97/16
[240]
97/16
[240]
97/16
[240]
JoS-hp-e, JBS-hp-e
42, 44, 45, 46, 47
page 44
97/16
[240]
CROMC-0297-US-1402
91/2
[241]
101/2
[267]
25/16
[59]
473/4
[1213]
531/4
[1353]
521/2
[1334]
531/4
[1353]
101/2
[267]
25/16
[59]
233/4
[70]
473/4
[1213]
531/4
[1353]
521/2
[1334]
531/4
[1353]
101/2
215/16
507/8
563/8
553/8
561/8
[267]
[75]
Copyright © 2014 Pentair
473/4
[1213]
[1292]
531/4
[1353]
[1432]
521/2
[1334]
[1407]
531/4
[1353]
[1426]
approx.
Weight
lbs (kg)
type
J
564
(256)
602
(273)
631
(286)
831
(377)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
r orIfIce, 16.0 SQ.In. [10,323 SQ.MM] apI effectIVe area
950
-37
-47
HP-47
850
750
-16 -26
-36
-46
HP-46
-15
-25
-35
-45
HP-45
650
Inlet temperature (°f)
550
450
350
250
150
-14/-24
50
-34
HP-44
-44
-50
-150
-12
-22
-250
32
42
HP-42
-350
-450
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 45
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
t orIfIce, 26.0 SQ.In. [16,774 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJLTJOS-H-E-1
JOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-H-EJOS-EJBS-EJLTJOS-EJBS-EJLT-
15
25
35
45
16
26
36
46
Valve Size
Maximum Set pressure - psig
Maximum Set pressure - barg
Standard
Inlet
Back press.
Back press.
connections
Inlet
Inlet
X
limit@100°f
limit@38°c
anSI flanges
orifice raised face -450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
X
to
to
to
to
to
to
outlet Inlet outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
8T10
8T10
8T10
8T10
8T10
8T10
8T10
8T10
150
300
300
300
150
300
300
300
150
150
150
150
150
150
150
150
37
8T10
300
150
14
24
34
12
22
32
8T10
8T10
8T10
8T10
8T10
8T10
150
300
300
150
300
300
150
150
150
150
150
150
65
65
120
300
65
65
120
300
65
65
120
300
65
65
120
300
300
50
50
65
215
65
65
120
30
30
60
100
30
30
60
100
30
30
60
100
30
30
60
100
60
60
30
30
60
30
30
45
30
30
60
25
25
32.5
4.48 4.48
4.48 4.48
8.27 8.27
20.6 20.6
4.48
4.48
8.27
20.6
3.44
3.44
4.48
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
4.48
4.48
8.27
20.6
2.06
2.06
4.13
6.89
2.06
2.06
4.13
6.89
20.6 14.8
4.13 4.13
4.48
4.48
8.27
2.06
2.06
4.13
1.72
1.72
2.24
loW Set preSSure lIMItS
JOS-E
JBS-E
JLT-JOS-E
JLT-JBS-E
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
2.06
2.06
4.13
2.06
2.06
3.10
2.06
2.06
4.13
6.89
2.06
2.06
4.13
6.89
8 psig [0.55 barg]
8 psig [0.55 barg]
15 psig [1.03 barg]
25 psig [1.72 barg]
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
use to
center to face
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
45, 46
page 46
107/8
[276]
107/8
[276]
107/8
[276]
CROMC-0297-US-1402
11
[279]
29/16
[65]
11
[279]
29/16
[65]
11
[279]
29/16
[65]
Copyright © 2014 Pentair
54
[1372]
54
[1372]
54
[1372]
591/2
[1511]
591/2
[1511]
591/2
[1511]
581/2
[1486]
581/2
[1486]
581/2
[1486]
591/4
[1505]
591/4
[1505]
591/4
[1505]
approx.
Weight
lbs (kg)
type
J
882
(400)
902
(409)
930
(422)
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
t orIfIce, 26.0 SQ.In. [16,774 SQ.MM] apI effectIVe area
1000
900
37
800
700
16/26
36
15/25
35
46
Inlet temperature (°f)
600
500
400
300
45
200
100
14/24
0
34
-100
-200
32
12/22
-300
-400
-500
0
50
100
150
200
250
300
350
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 47
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
t2 orIfIce, 27.872 SQ.In. [17,981 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-EJOS-H-E-1
JOS-EJBS-EJOS-H-E-
15
25
35
45
16
26
36
46
JOS-EJBS-E- 37
JOS-H-E14
JOS-E24
JBS-E34
12
JOS-E22
JBS-E32
Valve Size
Inlet
X
orifice
X
outlet
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
8T210
Inlet
150
300
300
300
150
300
300
300
Maximum Set pressure - psig
Maximum Set pressure - barg
Back press.
Back press.
Inlet
Inlet
limit@100°f
limit@38°c
-450°f -75°f -20°f
psig
-268°c -59°c -29°c
barg
to
to
to
to
to
to
outlet -76°f -21°f +100°f +650°f1 +800°f +1000°f JoS2 JBS2 -60°c -30°c +38°c +343°c1 +427°c +538°c JoS2 JBS2
150
65
65
30
30
4.48 4.48
2.06 2.06
150
65
65
30
30
4.48 4.48
2.06 2.06
150
120
120
60
60
8.27 8.27
4.13 4.13
150
300
300
100 100
20.6 20.6
6.89 6.89
150
65
65
30
30
4.48 4.48
2.06 2.06
150
65
65
30
30
4.48 4.48
2.06 2.06
150
120
120
60
60
8.27 8.27
4.13 4.13
150
300
300
100 100
20.6 20.6
6.89 6.89
150
300
300
150
300
300
150
150
150
150
150
150
Standard
connections
anSI flanges
raised face
300
150
300
65
65
120
50
50
65
215
60
60
30
30
30
30
60
60
30
25
30
25
45 32.5
3.44
3.44
4.48
notes:
JOS-E
JBS-E
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
a&G J&l
c
d
JoS-e-, JBS-e-, JoS-h-e32, 34, 35, 36, 37
45, 46
page 48
107/8
[276]
107/8
[276]
107/8
[276]
CROMC-0297-US-1402
11
[279]
29/16
[65]
11
[279]
29/16
[65]
11
[279]
29/16
[65]
Copyright © 2014 Pentair
14.8 4.13 4.13
2.06
2.06
4.13
2.06
2.06
3.10
2.06
2.06
4.13
1.72
1.72
2.24
loW Set preSSure lIMItS
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
12, 14, 15, 16,
22, 24, 25, 26
4.48
4.48
8.27
20.6
54
[1372]
54
[1372]
54
[1372]
591/2
[1511]
591/2
[1511]
591/2
[1511]
581/2
[1486]
581/2
[1486]
581/2
[1486]
591/4
[1505]
591/4
[1505]
591/4
[1505]
approx.
Weight
lbs (kg)
type
J
882
(400)
902
(409)
930
(422)
8 psig [0.55 barg]
8 psig [0.55 barg]
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
t2 orIfIce, 27.872 SQ.In. [17,981 SQ.MM] apI effectIVe area
1000
900
37
800
700
16/26
36
15/25
35
46
Inlet temperature (°f)
600
500
400
300
45
200
100
14/24
0
34
-100
-200
32
12/22
-300
-400
-500
0
50
100
150
200
250
300
350
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 49
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
SIZeS and preSSure/teMperature lIMItS
V orIfIce, 42.19 SQ.In. [27,218 SQ.MM] apI effectIVe area
Valve
Series
JOS-EJBS-E-
JOS-H-E-1
JOS-E-
15
25
35
Valve Size
Inlet
X
orifice
X
outlet
10V14
10V14
10V14
Standard
connections
anSI flanges
raised face
Inlet
150
outlet
300
150
300
150
10V14
150
150
JOS-EJBS-E 37
10V14
300
150
10V14
300
150
JOS-H-EJOS-H-EJOS-EJBS-E-
JOS-EJBS-E-
26
36
14
24
34
12
22
32
10V14
10V14
10V14
10V14
10V14
10V14
10V14
300
300
150
300
150
300
300
100
100
150
16
JBS-E-
-450°f
to
-76°f
Maximum Set pressure - psig
Inlet
-75°f -20°f
to
to
-21°f +100°f +650°f1 +800°f +1000°f
316
150
150
150
230
100
230
150
150
100
100
150
150
100
100
70
70
80
100
JoS2
JBS2
60
60
60
100
100
120
60
60
120
60
60
60
316
2. Outlet pressure for temperatures above +100°F
[+38°C] should not exceed the ANSI flange
rating.
6.9
4.1
6.9
21.8
60
60
60
42
42
42
4. Series Designations: JLT-JOS-E and JLT-JBS-E
signify Series JOS-E, JBS-E with liquid trim for
liquid and gas service.
6.9
6.9
4.8
4.1
JBS2
4.1
4.1
13.8
8.3
6.9
4.1
4.1
6.9
6.9
4.8
Back press.
limit@38°c
barg
15.9
15.9
60
notes:
1. Upper temperature limit of JOS-H-E-15, 25, 35
and 45 valves is +800°F [+427°C].
JoS2
120
120
60
Maximum Set pressure - barg
Inlet
-268°c -59°c -29°c
to
to
to
-60°c -30°c +38°c +343°c1 +538°c
60
200
60
70
60
200
60
100
230
Back press.
limit@100°f
psig
6.9
21.8
4.8
4.1
6.9
8.3
4.1
4.1
4.1
4.1
8.3
4.1
4.1
4.1
13.8
8.3
4.1
2.9
4.1
4.1
2.9
2.9
loW Set preSSure lIMItS
JOS-E
JBS-E
psig [ barg]
psig [ barg]
3. Valves set below 15 psig [1.03 barg] cannot be
stamped with the ASME Code Symbol. Only
metal seated valves may be set below 15 psig.
dIMenSIonS and WeIGhtS
Valve dimensions, inches [mm]
center to face use to
approximate height
find Bolt
Inlet outlet length
Valve (cap) type
Valve Series
e
f
X
J
c
d
JoS-e-, JBS-e-, Jlt-, JoS-h-e12, 14, 15, 16,
22, 24, 25, 26
32, 34, 35, 36, 37
page 50
12
[305]
12
[305]
CROMC-0297-US-1402
14
[356]
14
[356]
2.93
[74]
2.93
[74]
Copyright © 2014 Pentair
62.6
[1590]
62.6
[1590]
62.6
[1590]
62.6
[1590]
62.6
[1590]
62.6
[1590]
approx.
Weight
lbs (kg)
type
J
2025
918
2050
930
Type J (Threaded Cap)
Type C (Regular Lifting Lever) Also JOS-H-E
Type D (Packed Lifting Lever)
Type L(Bolted Cap)
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure/teMperature lIMIt chart
V orIfIce, 42.19 SQ.In. [27,218 SQ.MM] apI effectIVe area
950
-37
850
750
-16
-36
-26
Inlet temperature (°f)
650
550
450
-35
-15
-25
350
250
150
-14/-24
-34
50
-50
-150
-12
-22
-250
-32
-350
-450
0
50
100
150
200
250
300
350
400
Set pressure (psig)
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 51
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
aIr capacItIeS - SerIeS JoS-e and JBS-e, uScS unItS1 (unIted StateS cuStoMary SySteM)
Set preSSureS 5 - 880 pSIG
orifice letter designation and effective area, sq.in.
Set
pressure d
(psig) 0.110
e
f
0.196 0.307
G
0.503
h
0.785
J
1.287
K
1.838
l
2.853
M
3.60
n
4.34
p
6.38
Q
11.05
r
16.0
t
26.0
t2
27.872
V
42.19
1 psi incr. 2.2
5 psi incr. 10.8
3.9
19.3
9.9
49.5
15.5
77.4
25.3
127
36.2
181
56.2
281
70.9
355
85.5
427
126
628
218
1088
315
1575
512
2560
549
2744
835
4173
1210
1261
1312
1363
1414
1670
1925
2436
2997
3559
4121
4683
5245
5807
6368
7492
8616
9739
10863
11986
13110
14234
15357
16481
17604
18728
19852
20975
22099
23222
24346
25470
26593
27717
28841
29964
31088
32211
33335
34459
35582
36706
37829
38953
40077
41200
42324
43447
44571
45695
46818
47942
49066
50189
1656
1720
1785
2107
2429
3074
3783
4492
5201
5910
6619
7328
8037
9455
10873
12291
13709
15127
16545
17963
19381
20799
22217
23635
25054
26472
27890
29308
30726
32144
33562
34980
36398
37816
39234
40652
42070
43488
44906
46324
47742
49160
50578
51996
53414
54832
56250
57668
59086
60504
61922
63340
1996
2074
2152
2540
2929
3706
4560
5415
6270
7124
7979
8834
9688
11397
13107
14816
16525
18235
19944
21653
23363
25072
26781
28491
30200
31909
33619
35328
37037
38746
40456
42165
43874
45584
47293
49002
50712
52421
54130
55840
57549
59258
60968
62677
64386
66095
67805
69514
71223
72933
74642
76351
2821
2936
3050
3164
3735
4307
5449
6706
7962
9219
10476
11732
12989
14246
16759
19273
21786
24299
26813
29326
31840
34353
36866
39380
41893
44406
46920
49433
51947
54460
56973
59487
62000
64514
67027
69540
72054
74567
77080
79594
82107
84621
87134
89647
92161
94674
97188
99701
102214
104728
107241
109754
112268
7361
7648
7934
9366
10798
13663
16814
19965
23116
26266
29417
32568
35719
42021
48323
54624
60926
67228
73530
79832
86133
92435
98737
105039
111340
117642
123944
130246
136548
142849
149151
155453
161755
168056
174358
180660
186962
193263
199565
205867
212169
218471
224772
231074
237376
243678
249979
256281
262583
268885
11964
12429
12895
15222
17550
22205
27326
32447
37567
42688
47809
52930
58051
68292
78534
88775
99017
109258
119500
129741
139983
150225
160466
12824
13323
13822
16317
18812
23802
29291
34780
40269
45758
51247
56736
62225
73203
84181
95158
106136
117114
128092
139070
150048
161026
172004
5
6
7
8
9
10
15
20
30
40
50
60
70
80
90
100
120
140
160
180
200
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
520
540
560
580
600
620
640
660
680
700
720
740
760
780
800
820
840
860
880
54.6
64.5
74.3
94.0
115
137
159
180
202
224
245
289
332
376
419
462
506
549
593
636
679
723
766
810
853
896
940
983
1027
1070
1113
1157
1200
1244
1287
1330
1374
1417
1461
1504
1547
1591
1634
1678
1721
1764
1808
1851
1895
1938
90.2
93.7
97.2
114
132
167
206
244
283
321
360
399
437
515
592
669
746
823
901
978
1055
1132
1210
1287
1364
1441
1519
1596
1673
1750
1827
1905
1982
2059
2136
2214
2291
2368
2445
2523
2600
2677
2754
2831
2909
2986
3063
3140
3218
3295
3372
3449
6.1
30.3
124
130
135
141
146
152
179
207
262
322
383
444
504
565
625
686
807
928
1049
1170
1291
1412
1533
1654
1775
1896
2017
2138
2259
2380
2501
2622
2743
2864
2986
3107
3228
3349
3470
3591
3712
3833
3954
4075
4196
4317
4438
4559
4680
4801
4922
5043
5164
5285
5406
204
213
222
231
240
249
294
339
429
528
627
726
825
923
1022
1121
1319
1517
1715
1913
2111
2309
2507
2705
2903
3101
3299
3497
3695
3892
4090
4288
4486
4684
4882
5080
5278
5476
5674
5872
6070
6268
6466
6663
6861
7059
7257
7455
7653
7851
8049
8247
8445
8643
8841
notes:
1. For air capacities, USCS Units are exact
equivalents of Imperial Units.
319
333
347
361
375
389
459
530
670
825
980
1135
1289
1444
1599
1753
2063
2372
2682
2991
3300
3610
3919
4229
4538
4848
5157
5466
5776
6085
6395
6704
7013
7323
7632
7942
8251
8561
8870
9179
9489
9798
10108
10417
10727
11036
11345
11655
11964
12274
12583
12892
13202
13511
13821
522
546
569
592
615
638
753
868
1098
1352
1605
1859
2112
2366
2619
2872
3379
3886
4393
4900
5407
5914
6421
6927
7434
7941
8448
8955
9462
9969
10475
10982
11489
11996
12503
13010
13517
14023
14530
15037
15544
16051
16558
17065
17572
18078
18585
19092
19599
20106
20613
21120
21626
22133
22640
Shaded ValueS are JoS-e only.
2. Not valid below 30 psig set pressure.
3. Capacities below 30 psig set pressure are
calculated at 3 psi overpressure.
page 52
CROMC-0297-US-1402
747
780
813
845
878
911
1076
1240
1570
1932
2294
2656
3018
3380
3742
4104
4829
5553
6277
7001
7725
8449
9174
9898
10622
11346
12070
12795
13519
14243
14967
15691
16416
17140
17864
18588
19312
20037
20761
21485
22209
22933
23657
24382
25106
25830
26554
27278
28003
28727
29451
30175
30899
31624
32348
Copyright © 2014 Pentair
4489
4686
4884
5082
5280
5477
6466
7455
9433
11608
13783
15959
18134
20309
22485
24660
29011
33362
37712
42063
46414
50764
55115
59466
63817
68167
72518
76869
81220
85570
89921
94272
98622
102973
107324
111675
116025
120376
124727
129077
133428
137779
142130
146480
150831
155182
159532
163883
168234
172585
176935
181286
185637
189987
194338
19497
20255
21014
24807
28600
36187
44532
52877
61222
69567
77912
86257
94603
111293
127983
144673
161363
178054
194744
211434
228124
244814
261505
278195
Capacity in standard cubic feet per minute
of air at 60°F and 10% overpressure. Valve
discharging to atmospheric pressure.
Capacities at 15 psig and above are certified by
the National Board of Boiler and Pressure Vessel
Inspectors and in accordance with the ASME
Boiler and Pressure Vessel Code, Section VIII.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
aIr capacItIeS - SerIeS JoS-e and JBS-e, uScS unItS1 (unIted StateS cuStoMary SySteM)
Set preSSureS 900 - 6000 pSIG
orifice letter designation and effective area, sq.in.
Set
pressure
(psig)
d
0.110
e
0.196
f
0.307
G
0.503
h
0.785
J
1.287
K
1.838
l
2.853
M
3.60
n
4.34
p
6.38
Q
11.05
r
16.0
t
26.0
t2
27.872
1 psi incr.
5 psi incr.
2.2
10.8
3.9
19.3
6.1
30.3
9.9
49.5
15.5
77.4
25.3
127
36.2
181
56.2
281
70.9
355
85.5
427
126
628
218
1088
315
1575
512
2560
549
2744
920
2025
3604
5649
9237
14440
23654
33796
980
2155
900
940
960
1000
1100
1200
1300
1400
1480
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
4200
4400
1981
2068
5891
2415
4299
6738
2198
2632
2849
3066
3240
3283
3500
3717
3934
4151
4368
4585
4802
5019
5236
5453
5800
6000
3913
4685
5071
5457
5766
5844
6230
8161
8547
8933
9319
9705
11250
6538
10478
10864
11636
6755
12022
7406
13181
6972
7189
7623
7840
8057
8274
8491
8708
9142
9576
10443
10877
11962
12179
12613
13047
12408
12795
13567
13953
14339
14725
15112
15498
16270
17042
17815
18587
19359
20132
21290
9632
15058
11018
17224
9435
9830
7948
12997
7343
8554
9038
9159
9764
12185
7388
14130
10028
7774
7002
9039
6133
10369
6321
6104
6012
6616
10091
5887
11311
5600
3836
5670
5200
5500
5770
3758
10009
5000
3681
5528
2111
4600
4800
3527
10975
11580
12790
13396
14001
14606
15211
15817
16422
17027
17632
18237
18843
19448
20053
20658
21264
21869
22474
23079
23685
12008
13987
14779
14977
15966
16956
17946
18935
19925
20915
21904
22894
23883
24873
25863
26852
27842
28832
14749
15368
15677
18771
20319
21866
23103
23413
24960
26507
28054
29601
31148
32695
34242
35790
37337
38884
40431
41978
23147
33072
51313
64758
78061
114781
24668
35244
54684
69012
83189
122321
28216
40314
62549
78939
24161
25174
25681
30750
33284
35819
37846
38353
40887
43422
45956
48490
51024
53559
56093
58627
61162
34520
35969
36693
43935
47556
51177
54073
54798
58419
52436
53560
55807
56931
68167
73785
66176
67594
70430
71849
79770
81479
84898
86607
117295
119808
124835
127348
198689
203040
207390
211741
216092
220443
79403
83897
62040
65660
69281
72902
76523
80144
63696
66230
68765
29821
30811
31801
32790
33780
34770
35759
36749
24290
25500
26711
27921
29132
30342
21676
22449
23221
note:
Capacity in standard cubic feet per minute
of air at 60°F and 10% overpressure. Valve
discharging to atmospheric pressure.
1. For air capacities, USCS Units are exact
equivalents of Imperial Units.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 53
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Water capacItIeS - SerIeS Jlt-JoS-e and Jlt-JBS-e, uScS unItS1 (unIted StateS cuStoMary SySteM)
dIfferentIal preSSureS ∆p2, 5 - 1040 pSI3
differential
pressure
d
∆ p – psi
0.110
5
10
15
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
340
360
380
400
420
440
460
480
500
520
540
560
580
600
620
640
660
680
700
720
740
760
780
800
820
840
860
880
900
920
940
960
980
1000
1020
1040
6.9
9.8
12.0
13.9
19.6
24.0
27.7
31.0
34.0
36.7
39.2
41.6
43.9
46.0
48.0
50.0
51.9
53.7
55.5
57.2
58.8
60.4
62.0
63.6
65.0
66.5
67.9
69.3
70.7
72.1
73.4
74.7
76.0
77.2
78.4
79.7
80.9
82.0
83.2
84.4
85.5
86.6
87.7
88.8
89.9
90.9
92.0
93.0
94.1
95.1
96.1
97.1
98.1
99.0
100
orifice letter designation and effective area, sq.in.
e
0.196
12.3
17.5
21.4
24.7
34.9
42.7
49.4
55.2
60.5
65.3
69.8
74.0
78.0
81.9
85.5
89.0
92.3
95.6
98.7
102
105
108
110
113
116
118
121
123
126
128
131
133
135
137
140
142
144
146
148
150
152
154
156
158
160
162
164
166
167
169
171
173
175
176
178
f
0.307
19.3
27.4
33.5
38.7
54.7
67.0
77.4
86.5
94.8
102
109
116
122
128
134
139
145
150
155
159
164
169
173
177
181
186
190
193
197
201
205
208
212
215
219
222
226
229
232
235
238
242
245
248
251
254
257
259
262
265
268
271
274
276
279
G
0.503
31.6
44.7
54.8
63.3
89.5
110
127
141
155
167
179
190
200
210
219
228
237
245
253
261
268
276
283
290
297
303
310
316
323
329
335
341
346
352
358
363
369
374
380
385
390
395
400
405
410
415
420
424
429
434
438
443
447
452
456
h
0.785
49.4
69.9
85.6
98.9
140
171
198
221
242
262
280
297
313
328
343
357
370
383
396
408
420
431
442
453
464
474
484
494
504
514
523
532
542
551
559
568
577
585
593
601
610
618
625
633
641
648
656
663
671
678
685
692
699
706
713
J
1.287
81.0
115
140
162
229
281
324
362
397
429
458
486
512
537
561
584
606
627
648
668
687
706
724
742
760
777
794
810
826
842
857
872
887
902
916
930
944
958
972
985
998
1012
1024
1037
1050
1062
1074
1087
1099
1110
1122
1134
1145
1157
1168
K
1.838
116
164
200
231
327
401
463
517
567
612
655
694
732
768
802
834
866
896
926
954
982
1009
1035
1061
1085
1110
1134
1157
1180
1203
1225
1246
1268
1289
1309
1329
1349
1369
1389
1408
1427
1445
1464
1482
1500
1518
1535
1552
1570
1587
1603
1620
1636
1653
1669
l
2.853
180
254
311
359
508
622
718
803
880
950
1016
1077
1135
1191
1244
1295
1344
1391
1436
1480
1523
1565
1606
1645
1684
1722
1759
1795
1831
1866
1900
1934
1967
1999
2031
2063
2094
2124
2154
2184
2213
2242
2271
2299
2327
2355
2382
2409
2435
2462
2488
2513
2539
2564
2589
M
3.60
227
320
392
453
641
785
906
1013
1110
1199
1282
1359
1433
1503
1570
1634
1696
1755
1813
1868
1923
1975
2027
2077
2125
2173
2220
2266
2311
2355
2398
2440
2482
2523
2563
2603
2642
2681
2719
2756
2793
2830
2866
2902
2937
2972
3006
3040
3073
3107
3140
3172
3204
3236
3268
n
4.34
273
386
473
546
773
946
1092
1221
1338
1445
1545
1639
1727
1812
1892
1970
2044
2116
2185
2252
2318
2381
2443
2503
2562
2620
2676
2731
2785
2838
2890
2942
2992
3041
3090
3138
3185
3232
3277
3323
3367
3411
3455
3498
3540
3582
3623
3664
3705
3745
3784
3824
3863
3901
3939
p
6.38
402
568
696
803
1136
1391
1606
1796
1967
2125
2272
2410
2540
2664
2782
2896
3005
3111
3213
3312
3408
3501
3592
3681
3767
3852
3935
4016
4096
4174
4250
4325
4399
4472
4544
4614
4683
4752
4819
4886
4951
5016
5080
5143
5205
5267
5328
5388
5448
5506
5565
5622
5679
5736
5792
Q
11.05
695
983
1204
1390
1966
2408
2781
3109
3406
3679
3933
4171
4397
4611
4816
5013
5202
5385
5561
5733
5899
6060
6218
6371
6521
6668
6811
6952
7089
7224
7357
7487
7615
7741
7865
7987
8107
8225
8342
8457
8571
8683
8793
8903
9011
9117
9223
9327
9430
9532
9633
9732
9831
r
16.0
1007
1424
1744
2014
2848
3488
4028
4503
4933
5328
5696
6042
6368
6679
6976
7261
7535
7800
8055
8303
8544
8778
9006
9229
9446
9658
9866
10069
10269
10464
10656
10845
11030
11213
11392
11569
11743
11914
12083
12250
12414
12576
12737
12895
13051
t
26.0
1636
2314
2834
3273
4629
5669
6546
7318
8017
8659
9257
9819
10350
10855
11338
11801
12246
12676
13092
13494
notes:
1. USCS Units for water and liquids are U.S. gallons per minute
(1 U.S. gallon equals 0.8327 Imperial gallon).
2. Differential Pressure (∆P) equals inlet pressure (set pressure
plus overpressure) at flowing conditions minus back
pressure.
3. See pages 18 to 47 for Minimum and Maximum Set Pressure
Limits.
page 54
CROMC-0297-US-1402
Copyright © 2014 Pentair
Capacity in U.S. gallons per minute of water
at 70°F and 10% overpressure.
Capacities at 15 psig and above are certified by the
National Board of Boiler and Pressure Vessel
Inspectors and in accordance with the ASME Boiler
and Pressure Vessel Code, Section VIII.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Water capacItIeS - SerIeS Jlt-JoS-e and Jlt-JBS-e, uScS unItS1 (unIted StateS cuStoMary SySteM)
dIfferentIal preSSureS ∆p2, 1060 - 6600 pSI3
differential
pressure
d
∆ p – psi
0.110
1060
1080
1100
1120
1140
1160
1180
1200
1220
1240
1260
1280
1300
1320
1340
1360
1380
1400
1420
1440
1460
1480
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
4100
4200
4300
4400
4500
4600
4700
4800
4900
5000
5500
6000
6600
101
102
103
104
105
106
107
107
108
109
110
111
112
113
114
114
115
116
117
118
118
119
120
124
128
132
135
139
142
145
149
152
155
158
161
164
167
170
173
175
178
181
183
186
189
191
194
196
199
201
203
206
208
210
213
215
217
219
230
240
252
orifice letter designation and effective area, sq.in.
e
0.196
180
181
183
185
186
188
190
191
193
194
196
197
199
201
202
204
205
206
208
209
211
212
214
221
228
234
241
247
253
259
265
270
276
281
287
292
297
302
307
312
317
322
327
331
336
340
345
349
353
358
362
366
370
374
378
382
386
390
409
427
448
f
0.307
282
284
287
289
292
295
297
300
302
305
307
309
312
314
317
319
321
324
326
328
331
333
335
346
357
367
377
387
396
406
415
424
432
441
449
458
466
474
482
489
497
504
512
519
526
533
540
547
554
561
567
574
580
587
593
599
605
612
641
G
0.503
460
465
469
473
478
482
486
490
494
498
502
506
510
514
518
522
525
529
533
537
540
544
548
566
583
600
617
633
648
663
678
693
707
721
735
748
762
775
787
800
812
825
837
849
860
872
883
895
Capacity in U.S. gallons per minute of water
at 70°F and 10% overpressure.
Capacities certified by the National Board of Boiler
and Pressure Vessel Inspectors and in accordance
with the ASME Boiler and Pressure Vessel Code,
Section VIII.
h
0.785
720
727
733
740
747
753
760
766
772
779
785
791
797
803
809
815
821
827
833
839
845
851
856
884
912
938
964
989
1013
1037
1060
1083
1106
1127
1149
1170
1191
1211
J
1.287
1179
1190
1201
1212
1223
1234
1244
1255
1265
1275
1286
1296
1306
1316
1326
1336
1345
1355
1365
1374
1384
1393
1403
1449
1493
1537
1579
1620
1660
1699
1737
1774
1811
1847
1882
1917
1950
1984
K
1.838
1685
1701
1716
1732
1747
1763
1778
1793
1808
1822
1837
1851
1866
1880
1894
1908
1922
1936
1950
1964
1977
1991
2004
2070
2134
2196
2256
2314
2371
2427
2482
2535
l
2.853
2614
2639
2663
2687
2711
2735
2758
2781
2804
2827
2850
2873
2895
2917
2939
2961
2983
3004
3026
3047
3068
3089
3110
3212
M
3.60
3299
3330
3361
3391
3421
3451
3481
3510
n
4.34
3977
4014
4051
p
6.38
5847
5902
5957
Q
11.05
r
16.0
t
26.0
notes:
1. USCS Units for water and liquids are U.S. gallons per
minute (1 U.S. gallon equals 0.8327 Imperial gallon).
2. Differential Pressure (∆P) equals inlet pressure (set
pressure plus overpressure) at flowing conditions minus
back pressure.
3. See pages 18 to 47 for Minimum and Maximum Set
Pressure Limits.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 55
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Saturated SteaM capacItIeS, unfIred preSSure VeSSel SerVIce - SerIeS JoS-e and JBS-e, uScS unItS1
Set preSSureS 5 - 570 pSIG
orifice letter designation and effective area, sq.in.
Set
pressure d
e
(psig) 0.110 0.196
f
0.307
G
0.503
h
0.785
J
1.287
K
1.838
l
2.853
M
3.60
n
4.34
p
6.38
Q
11.05
r
16.0
t
26.0
t2
27.872
V
42.19
1 psi incr.
5 psi incr.
17.0
85.0
27.8
139
43.5
217
71.2
356
102
509
158
789
199
996
240
1201
353
1765
611
3056
885
4426
1439
7193
1542
7711
2345
11723
5609
5828
6046
7137
8229
10412
12813
15214
17615
20016
22417
24818
27219
29620
32022
34423
36824
39225
41626
44027
46428
48829
51230
53632
56033
58434
60835
63236
65637
68038
70439
72840
75242
77643
80044
82445
84846
87247
89648
92049
94450
96852
99253
101654
104055
106456
108857
111258
113659
116060
118462
120863
123264
125665
128066
130467
132868
137670
140072
7927
8248
8569
8890
10495
12100
15310
18840
22371
25901
29432
32963
36493
40024
43554
47085
50616
54146
57677
61207
64738
68269
71799
75330
78861
82391
85922
89452
92983
96514
100044
103575
107105
110636
114167
117697
121228
124758
128289
131820
135350
138881
142412
145942
149473
153003
156534
160065
163595
167126
170656
174187
177718
181248
184779
188310
191840
195371
202432
205963
20682
21486
22291
26315
30339
38386
47238
56091
64943
73795
82647
91500
100352
109204
118056
126909
135761
144613
153465
162318
171170
180022
188874
197727
206579
215431
224283
233136
241988
250840
259693
268545
277397
286249
295102
303954
312806
321658
330511
339363
348215
357067
365920
374772
383624
392476
401329
410181
419033
427885
436738
445590
454442
463294
472147
480999
489851
507556
516408
33612
34920
36228
42767
49306
62385
76771
91158
105545
119931
134318
148704
163091
177477
191864
206251
220637
235024
249410
263797
278183
292570
306957
321343
335730
350116
364503
378889
393276
407663
422049
436436
450822
36029
37430
38832
45842
52852
66871
82292
97713
113134
128555
143976
159397
174818
190239
205660
221081
236502
251923
267344
282765
298186
313607
329028
344449
359870
375291
390712
406133
421554
436975
452396
467817
483238
54776
56907
59039
69695
80352
101666
125111
148556
172001
195447
218892
242337
265782
289227
312672
336117
359562
383008
406453
429898
453343
476788
500233
523678
547123
570569
594014
617459
640904
664349
687794
711239
734685
5
6
7
8
9
10
15
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
560
570
6.1
30.5
153
181
208
264
325
386
447
508
569
630
691
752
812
873
934
995
1056
1117
1178
1239
1300
1361
1422
1483
1544
1605
1666
1727
1788
1849
1910
1971
2032
2093
2154
2215
2275
2336
2397
2458
2519
2580
2641
2702
2763
2824
2885
2946
3007
3068
3129
3190
3251
3312
3373
3495
3556
10.8
54.2
253
263
273
322
371
470
578
687
795
904
1012
1121
1229
1338
1446
1555
1663
1772
1880
1989
2097
2206
2314
2423
2531
2640
2748
2857
2965
3074
3182
3291
3399
3508
3616
3725
3833
3942
4050
4159
4267
4376
4484
4593
4701
4810
4918
5027
5135
5244
5352
5461
5569
5678
5786
5895
6003
6220
6328
350
366
381
397
412
428
505
582
737
907
1077
1247
1417
1587
1757
1927
2097
2267
2437
2607
2777
2947
3117
3287
3457
3627
3798
3968
4138
4308
4478
4648
4818
4988
5158
5328
5498
5668
5838
6008
6178
6348
6518
6688
6858
7028
7198
7368
7538
7708
7878
8048
8219
8389
8559
8729
8899
9069
9239
9409
9749
9919
573
599
624
649
674
700
826
952
1205
1483
1761
2039
2317
2595
2873
3151
3429
3708
3986
4264
4542
4820
5098
5376
5654
5932
6210
6488
6766
7044
7322
7600
7878
8156
8434
8712
8990
9268
9546
9824
10102
10380
10658
10937
11215
11493
11771
12049
12327
12605
12883
13161
13439
13717
13995
14273
14551
14829
15107
15385
15941
16219
notes:
1. USCS - United States Customary System.
896
936
975
1015
1055
1094
1292
1489
1884
2319
2754
3188
3623
4058
4492
4927
5361
5796
6231
6665
7100
7535
7969
8404
8839
9273
9708
10143
10577
11012
11447
11881
12316
12751
13185
13620
14054
14489
14924
15358
15793
16228
16662
17097
17532
17966
18401
18836
19270
19705
20140
20574
21009
21444
21878
22313
22747
23182
23617
24051
24921
25355
1469
1534
1598
1663
1728
1792
2116
2440
3087
3799
4511
5223
5935
6647
7359
8071
8783
9495
10207
10919
11631
12343
13055
13767
14479
15191
15903
16615
17327
18039
18751
19463
20175
20887
21599
22311
23023
23735
24447
25159
25871
26583
27295
28007
28719
29431
30143
30855
31567
32279
32991
33703
34415
35127
35839
36551
37263
37975
38687
39399
40823
41535
3. Capacities below 30 psig set pressure are
calculated at 3 psig overpressure.
CROMC-0297-US-1402
3400
3544
3687
3831
3974
4692
5409
6844
8422
10001
11579
13157
14736
16314
17892
19471
21049
22627
24206
25784
27363
28941
30519
32098
33676
35254
36833
38411
39989
41568
43146
44725
46303
47881
49460
51038
52616
54195
55773
57351
58930
60508
62087
63665
65243
66822
68400
69978
71557
73135
74713
76292
77870
79449
81027
82605
84184
85762
87340
90497
92075
4653
4834
5016
5921
6826
8637
10629
12621
14613
16605
18597
20589
22581
24573
26565
28557
30549
32541
34533
36524
38516
40508
42500
44492
46484
48476
50468
52460
54452
56444
58436
60428
62420
64412
66404
68396
70387
72379
74371
76363
78355
80347
82339
84331
86323
88315
90307
92299
94291
96283
98275
100267
102259
104250
106242
108234
110226
114210
116202
Shaded ValueS are JoS-e only.
2. Not valid below 30 psig set pressure.
page 56
2099
2191
2284
2376
2469
2561
3024
3486
4411
5428
6445
7463
8480
9497
10515
11532
12549
13566
14584
15601
16618
17636
18653
19670
20687
21705
22722
23739
24757
25774
26791
27808
28826
29843
30860
31878
32895
33912
34929
35947
36964
37981
38999
40016
41033
42050
43068
44085
45102
46120
47137
48154
49171
50189
51206
52223
53241
54258
55275
56292
58327
59344
Copyright © 2014 Pentair
12612
13167
13723
14278
14834
15390
18168
20945
26501
32613
38725
44836
50948
57059
63171
69282
75394
81505
87617
93729
99840
105952
112063
118175
124286
130398
136510
142621
148733
154844
160956
167067
173179
179290
185402
191514
197625
203737
209848
215960
222071
228183
234295
240406
246518
252629
258741
264852
270964
277075
283187
289299
295410
301522
307633
313745
319856
325968
332079
338191
350414
356526
Capacity in pounds per hour of steam at
10% overpressure.3 Valve discharging to
atmospheric pressure.
Capacities at 15 psig and above are certified by
the National Board of Boiler and Pressure Vessel
Inspectors and in accordance with the ASME
Boiler and Pressure Vessel Code, Section VIII.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Saturated SteaM capacItIeS, unfIred preSSure VeSSel SerVIce - SerIeS JoS-e and JBS-e, uScS unItS1
Set preSSureS 580 - 1780 pSIG
Set
pressure
(psig)
1 psi incr.
5 psi incr.
580
590
600
620
640
660
680
700
720
740
760
780
800
820
840
860
880
900
920
940
960
980
1000
1020
1040
1060
1080
1100
1120
1140
1160
1180
1200
1220
1240
1260
1280
1300
1320
1340
1360
1380
1400
1420
1440
1460
1480
1500
1520
1540
1560
1580
1600
1620
1640
1660
1680
1700
1720
1740
1760
1780
d
0.110
6.1
30.5
3617
3678
3738
3860
3982
4104
4226
4348
4470
4592
4714
4836
4958
5080
5202
5323
5445
5567
5689
5811
5933
6055
6177
6299
6421
6543
6665
6786
6908
7030
7152
7274
7396
7518
7640
7762
7884
8006
8128
8249
8371
8493
8615
8737
8868
8999
9139
9271
9403
9535
9677
9810
9943
10086
10219
10363
10498
10642
10777
10923
11058
11205
e
0.196
10.8
54.2
6437
6545
6654
6871
7088
7305
7522
7739
7956
8173
8390
8607
8824
9041
9258
9475
9692
9909
10126
10343
10560
10777
10994
11211
11428
11645
11862
12078
12295
12512
12729
12946
13163
13380
13597
13814
14031
14248
14465
14682
14899
15116
15333
15550
15783
16016
16266
16500
16735
16970
17223
17459
17696
17950
18188
18444
18683
18941
19181
19440
19681
19942
f
0.307
17.0
85.0
10089
10259
10429
10769
11109
11449
11789
12129
12469
12810
13150
13490
13830
14170
14510
14850
15190
15530
15870
16210
16550
16890
17231
17571
17911
18251
18591
18931
19271
19611
19951
20291
20631
20971
21311
21651
21992
22332
22672
23012
23352
23692
24032
24372
24737
25102
25494
25861
26229
26597
26993
27364
27735
28134
28507
28908
29283
29687
30063
30469
30847
31256
G
0.503
27.8
139
16497
16775
17053
17609
18166
18722
19278
19834
20390
20946
21502
22058
22614
23170
23726
24282
24838
25395
25951
26507
27063
27619
28175
28731
29287
29843
30399
30955
31511
32067
32624
33180
33736
34292
34848
35404
35960
36516
37072
37628
38184
38740
39296
39853
40449
41047
41687
42287
42889
43491
44139
44744
45351
46004
46613
47270
47882
48543
49158
49822
50440
51109
Capacity in pounds per hour of steam at
10% overpressure. Valve discharging to
atmospheric pressure.
orifice letter designation and effective area, sq.in.
h
J
K
l
M
n
p
0.785 1.287
1.838
2.853
3.60
4.34
6.38
43.5
71.2
102
158
199
240
353
217
356
509
789
996
1201
1765
25790
26225
26659
27529
28398
29267
30137
31006
31875
32744
33614
34483
35352
36222
37091
37960
38830
39699
40568
41437
42307
43176
44045
44915
45784
46653
47523
48392
49261
50130
51000
51869
52738
53608
54477
55346
56216
57085
57954
58823
59693
60562
61431
62301
63233
64167
65168
66107
67047
67989
69001
69948
70896
71917
72869
73896
74853
75886
76847
77886
78852
79897
42247
42959
43671
45095
46519
47943
49367
50791
52215
53639
55063
56487
57911
59335
60759
62183
63607
65031
66455
67879
69303
70727
72151
73575
74999
76423
77847
79271
80695
82119
83543
84967
86391
87815
89239
90663
92087
93511
94935
96359
97783
99207
100631
102055
103583
105113
106753
108290
109830
111374
113032
114582
116135
117807
119368
121050
122617
124309
125884
127586
129168
130880
60362
61379
62396
64431
66465
68500
70534
72569
74604
76638
78673
80707
82742
84776
86811
88846
90880
92915
94949
96984
99018
101053
103088
105122
107157
109191
111226
113261
115295
117330
119364
121399
123433
125468
127503
129537
131572
133606
135641
137675
139710
141745
143779
145814
147996
150183
152525
154722
156922
159127
161496
163711
165930
168319
170549
172952
175192
177609
179859
182291
184551
186997
93654
95232
96811
99967
103124
106281
109437
112594
115751
118908
122064
125221
128378
131534
134691
137848
141005
144161
147318
150475
153632
156788
159945
163102
166258
169415
172572
175729
178885
182042
185199
188356
191512
194669
197826
200982
204139
207296
210453
213609
216766
219923
223080
226236
229622
233015
236649
240057
118194
120186
122178
126162
130146
134130
138113
142097
146081
150065
154049
158033
162017
166001
169985
173968
177952
181936
185920
189904
193888
197872
201856
205839
209823
213807
217791
221775
142473
144874
147275
152077
156879
161682
166484
171286
176088
180890
185693
190495
195297
200099
204902
209704
214506
219308
224110
228913
233715
238517
243319
209493
213024
216554
223616
230677
237738
244799
251861
258922
265983
273044
280105
287167
294228
301289
308350
315412
322473
329534
336595
343656
350718
357779
Q
11.05
611
3056
362637
368749
374860
387084
399307
411530
423753
435976
448199
460422
472645
484868
497092
509315
521538
533761
545984
558207
570430
582653
594877
607100
619323
r
16.0
885
4426
525260
534112
542965
560669
578374
596078
613783
631487
649192
666896
684601
702305
720010
737714
755419
t
26.0
1439
7193
t2
27.872
1542
7711
note:
1. USCS - United States Customary System.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 57
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Saturated SteaM capacItIeS, unfIred preSSure VeSSel SerVIce - SerIeS JoS-e and JBS-e, uScS unItS1
Set preSSureS 1800 - 2900 pSIG
Set
pressure
(psig)
1 psi incr.
5 psi incr.
1800
1820
1840
1860
1880
1900
1920
1940
1960
1980
2000
2020
2040
2060
2080
2100
2120
2140
2160
2180
2200
2220
2240
2260
2280
2300
2320
2340
2360
2380
2400
2420
2440
2460
2480
2500
2520
2540
2560
2580
2600
2620
2640
2660
2680
2700
2720
2740
2760
2780
2800
2820
2840
2860
2880
2900
d
0.110
6.1
30.5
11341
11488
11636
11773
11922
12071
12221
12371
12510
12661
12813
12965
13117
13270
13424
13578
13745
13901
14056
14212
14382
14540
14697
14869
15028
15201
15376
15536
15711
15888
16065
16242
16421
16600
16779
16960
17141
17339
17522
17721
17906
18107
18309
18512
18717
18922
19128
19335
19560
19769
19996
20225
20455
20686
20935
21169
e
0.196
10.8
54.2
20184
20447
20710
20954
21219
21484
21751
22018
22265
22534
22804
23074
23346
23618
23892
24166
24464
24740
25017
25295
25597
25877
26158
26464
26746
27055
27365
27651
27963
28276
28591
28907
29225
29543
29864
30185
30508
30859
31185
31540
31868
32226
32586
32948
33311
33676
34043
34411
34812
35184
35589
35995
36404
36815
37260
37675
f
0.307
17.0
85.0
31635
32046
32459
32841
33256
33673
34090
34509
34896
35318
35741
36165
36590
37017
37446
37875
38342
38775
39209
39645
40119
40557
40997
41477
41920
42404
42889
43337
43826
44318
44811
45307
45804
46304
46805
47309
47815
48366
48876
49432
49947
50508
51072
51639
52208
52781
53356
53933
54561
55144
55778
56416
57057
57701
58398
59049
G
0.503
27.8
139
51729
52401
53076
53701
54380
55060
55743
56429
57061
57751
58442
59136
59831
60529
61230
61932
62696
63404
64114
64826
65601
66318
67037
67822
68546
69337
70131
70863
71663
72467
73274
74084
74897
75714
76534
77358
78185
79086
79920
80830
81671
82589
83511
84438
85369
86305
87245
88190
89216
90170
91207
92249
93297
94350
95490
96555
orifice letter designation and effective area, sq.in.
h
J
K
l
M
n
p
0.785 1.287
1.838
2.853
3.60
4.34
6.38
43.5
71.2
102
158
199
240
353
217
356
509
789
996
1201
1765
80867
81918
82973
83949
85010
86075
87142
88214
89203
90280
91361
92445
93533
94624
95719
96817
98012
99118
100227
101340
102553
103674
104798
106024
107157
108393
109634
110778
112029
113285
114547
115813
117085
118362
119644
note:
1. USCS - United States Customary System.
132468
134190
135918
137518
139256
141000
142749
144504
146124
147889
149659
151435
153217
155005
156798
158597
160554
162365
164183
166006
167993
169829
171670
173680
175534
177559
179593
181467
183516
185574
187640
189715
191798
Q
11.05
611
3056
r
16.0
885
4426
t
26.0
1439
7193
t2
27.872
1542
7711
Capacity in pounds per hour of steam at 10%
overpressure. Valve discharging to
atmospheric pressure.
Capacities certified by the National Board of Boiler
and Pressure Vessel Inspectors and in accordance
with the ASME Boiler and Pressure Vessel Code,
Section VIII.
page 58
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
eQuIValentS and conVerSIon factorS
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Atmospheres
Barrels
Bars
Bars
Bars
Centimeters
Centimeters
Centimeters
Centimeters
Cubic centimeters
Cubic feet
Cubic feet
Cubic feet per minute
Cubic feet per second
Cubic inches
Cubic inches
Cubic meters
Cubic meters per hour
Cubic meters per minute
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Standard cubic feet per min.
Feet
Feet
Feet
Feet of water
Feet of water
Gallons(U.S.)
Gallons(U.S.)
Gallons(U.S.)
Gallons(Imperial)
Gallons(U.S.)
Gallons(U.S.)
Gallons of water
Gallons of liquid per minute
per minute
Gallons per minute
Gallons per minute
Gallons per minute
Gallons per minute
Gallons per minute
Grams
Inches
Inches
Inches
Inches
Inches of mercury
Inches of mercury
Inches of mercury
Inches of mercury
Inches of water
Inches of water
14.70
1.033
29.92
760.0
407.2
33.93
1.013
101.3
42.00
14.50
1.020
100.0
0.3937
0.03281
0.010
0.01094
0.06102
7.481
0.1781
0.02832
448.8
16.39
0.004329
264.2
4.403
35.31
60.00
1440
0.02716
1.630
39.11
0.02832
1.699
40.78
0.3048
0.3333
30.48
0.8818
0.4335
3785
0.1337
231.0
277.4
0.8327
3.785
8.337
500 x Sp. Gr.
0.002228
227.0 x SG
0.06309
3.785
0.2271
0.03527
2.540
0.08333
0.0254
0.02778
1.133
0.4912
0.03342
0.03453
0.03613
0.07355
Pounds per square inch
Kilograms per sq. cm
Inches of mercury
Millimeters of mercury
Inches of water
Feet of water
Bars
KiloPascals
Gallons (U.S.)
Pounds per square inch
Kilograms per sq. cm
KiloPascals
Inches
Feet
Meters
Yards
Cubic inches
Gallons
Barrels
Cubic meters per minute
Gallons per minute
Cubic centimeters
Gallons
Gallons
Gallons per minute
Cubic feet per minute
Standard cubic ft. per hr
Standard cubic ft. per day
Nm3/min.
Nm3/hr.
Nm3/day
Sm3/min.
Sm3/hr.
Sm3/day
Meters
Yards
Centimeters
Inches of mercury
Pounds per square inch
Cubic centimeters
Cubic feet
Cubic inches
Cubic inches
Gallons (Imperial)
Liters
Pounds (at 60°F)
Pounds per hour liquid
(at 60°F)
Cubic feet per second
Kilograms per hour
Liters per second
Liters per minute
M3/hr.
Ounces
Centimeters
Feet
Meters
Yards
Feet of water
Pounds per square inch
Atmospheres
Kilograms per sq. cm
Pounds per sq. in.
Inches of mercury
Kilograms
Kilograms
Kilograms
Kilograms per minute
Kilograms per sq. cm
Kilograms per sq. cm
Kilograms per sq. cm
Kilograms per cubic meter
KiloPascals
KiloPascals
KiloPascals
Liters
Liters
Liters
Liters per hour
Meters
Meters
Meters
Meters
Pounds
Pounds
Pounds
Pounds
Pounds
Pounds
Pounds per hour
Pounds per hour
Pounds per hour liquid
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Pounds per sq. inch
Specific gravity
vapors)
(of gas or vapors)
Square centimeter
Square inch
Square inch
SSU
SSU
Water (cubic feet)
Temperature:
Centigrade
Kelvin
Fahrenheit
Fahrenheit +460°
Fahrenheit (°F+460) 5/9
2.205
0.001102
35.27
132.3
14.22
0.9678
28.96
16.018
0.1450
0.0100
0.01020
0.03532
1000
0.2642
0.004403
3.281
1.094
100.0
39.37
0.1199
453.6
0.0005
0.4536
0.0004536
16.00
6.323/M.W.
0.4536
0.002/Sp.Gr.
27.68
2.307
2.036
0.07031
0.0680
51.71
0.7032
0.06895
6.895
28.97
0.1550
6.4516
645.16
0.2205 x SG
0.2162
62.4
=
=
=
=
=
Pounds
Short tons (2000 lbs.)
Ounces
Pounds per hour
Pounds per sq. in.
Atmospheres
Inches of mercury
Pounds per cubic foot
Pounds per sq. in.
Bars
Kilograms per sq. cm
Cubic feet
Cubic centimeters
Gallons
Gallons per minute
Feet
Yards
Centimeters
Inches
Gallons H2O @ 60°F (U.S.)
Grams
Short tons (2000 lbs.)
Kilograms
Metric tons
Ounces
Cubic feet per minute
Kilograms per hour
Gallons per minute liquid (at 60°F)
Inches of water
Feet of water
Inches of mercury
Kilograms per sq. cm
Atmospheres
Millimeters of mercury
Meters of water
Bar
KiloPascals
Molecular weight (of gas or
Square inch
Square centimeter
Square millimeter
Centipoise
Centistoke
Pounds (at 60°F)
5/9 (Fahrenheit - 32)
Centigrade + 273
9/5 (Centigrade) + 32
Rankine
Kelvin
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 59
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
aIr capacItIeS - SerIeS JoS-e and JBS-e, MetrIc unItS
Set preSSureS 0.35 - 88 BarG
orifice letter designation and effective area, sq.mm.
Set
pressure
(barg)
d
71
e
126
f
198
G
325
h
506
J
830
K
1186
l
1841
M
2323
n
2800
p
4116
Q
7129
r
t
t2
10323 16774 17981
1 bar incr.
5 bar incr.
0.8
4.2
1.5
7.5
2.4
11.8
3.8
19.2
6
30.1
9.8
49.2
14.1
70.4
21.8
109.2
27.6
137.8
33.2
166
48.8
244.2
84.5
422.6
122.4
612.2
44.3
45.5
46.8
48.0
49.3
50.6
51.8
53.1
54.3
55.6
80.6
135
190
245
300
355
411
466
521
576
631
686
741
796
851
906
962
1017
1072
1127
1182
1237
1292
1347
1402
1458
1513
1568
1623
1678
1733
1788
1843
1898
1953
2009
2064
53.4
54.9
56.4
57.9
59.4
60.9
62.5
64.0
65.5
67.0
97.2
163
229
296
362
429
495
561
628
694
761
827
894
960
1026
1093
1159
1226
1292
1358
1425
1491
1558
1624
1691
1757
1823
1890
1956
2023
2089
2156
2222
2288
76.3
78.5
80.8
83.0
85.2
87.4
89.6
91.9
94.1
96.3
98.5
142
240
337
435
533
630
728
826
923
1021
1119
1216
1314
1412
1509
1607
1705
1802
1900
1998
2095
2193
2291
2388
2486
2584
2681
2779
2877
2974
3072
3170
3267
3365
0.35
0.4
0.45
0.5
0.55
0.6
0.65
0.7
0.75
0.8
0.85
0.9
0.95
1
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
1.4
1.5
1.5
1.5
1.6
1.6
1.7
2.4
4.1
5.8
7.5
9.2
10.8
12.5
14.2
15.9
17.6
19.3
21.0
22.6
24.3
26.0
27.7
29.4
31.1
32.8
34.5
36.1
37.8
39.5
41.2
42.9
44.6
46.3
47.9
49.6
51.3
53.0
54.7
56.4
58.1
59.7
61.4
63.1
64.8
66.5
68.2
69.9
71.5
73.2
74.9
2.4
2.4
2.5
2.6
2.6
2.7
2.8
2.8
2.9
3.0
4.3
7.3
10.3
13.3
16.3
19.3
22.3
25.3
28.3
31.3
34.3
37.3
40.3
43.3
46.3
49.3
52.4
55.4
58.4
61.4
64.4
67.4
70.4
73.4
76.4
79.4
82.4
85.4
88.4
91.4
94.4
97.4
100
103
106
109
112
115
118
121
124
127
130
133
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.1
4.2
4.3
4.4
4.5
4.6
4.7
6.8
11.5
16.2
20.9
25.6
30.3
35.0
39.7
44.4
49.2
53.9
58.6
63.3
68.0
72.7
77.4
82.1
86.8
91.5
96.2
100
105
110
115
119
124
129
133
138
143
147
152
157
162
166
171
176
180
185
190
195
199
204
209
5.4
5.6
5.8
6.0
6.1
6.3
6.5
6.7
6.8
7.0
7.2
7.4
7.5
7.7
11.2
18.9
26.6
34.3
41.9
49.6
57.3
65.0
72.7
80.4
88.1
95.8
103
111
118
126
134
141
149
157
165
172
180
188
195
203
211
218
226
234
241
249
257
265
272
280
288
295
303
311
318
326
334
341
note:
1. Capacities below 2.0 bar set pressure are
calculated at 0.2 bar overpressure.
8.5
8.8
9.1
9.4
9.6
9.9
10.2
10.4
10.7
11.0
11.3
11.5
11.8
12.1
17.5
29.5
41.6
53.6
65.6
77.6
89.7
101
113
125
137
149
161
173
185
197
209
221
233
246
258
270
282
294
306
318
330
342
354
366
378
390
402
414
426
438
450
462
474
486
498
510
522
534
14.0
14.5
14.9
15.4
15.8
16.2
16.7
17.1
17.6
18.0
18.5
18.9
19.4
19.8
28.8
48.4
68.1
87.8
107
127
146
166
186
206
225
245
265
284
304
324
343
363
383
402
422
442
462
481
501
521
540
560
580
599
619
639
659
678
698
718
737
757
777
796
816
836
855
875
20.0
20.7
21.3
22.0
22.6
23.2
23.9
24.5
25.2
25.8
26.4
27.1
27.7
28.4
41.1
69.2
97.3
125
153
181
209
238
266
294
322
350
378
406
435
463
491
519
547
575
603
632
660
688
716
744
772
800
829
857
885
913
941
969
997
1026
1054
1082
1110
1138
1166
1194
1222
1251
33.1
34.1
35.1
36.1
37.1
38.1
39.1
40.0
41.0
42.0
43.0
44.0
63.9
107
151
194
238
282
325
369
413
456
500
544
587
631
675
718
762
806
849
893
936
980
1024
1067
1111
1155
1198
1242
1286
1329
1373
1417
1460
1504
1548
1591
1635
1679
1722
1766
1810
1853
1897
1941
Shaded ValueS are JoS-e only.
120
124
128
132
136
139
143
147
151
155
159
162
166
170
247
415
585
754
923
1092
1261
1430
1599
1768
1937
2106
2275
2444
2613
2782
2951
3120
3289
3459
3628
3797
3966
4135
4304
4473
4642
4811
4980
5149
5318
5487
5656
5825
191
197
202
208
213
219
224
230
236
241
247
358
602
847
1092
1337
1582
1826
2071
2316
2561
2806
3051
3296
3540
3785
4030
4275
4520
4765
5010
5255
5499
5744
5989
6234
6479
6724
6969
7214
Set
V
pressure
27218 (kpag)
199 213.3 324.3 100 kPa incr.
994.9 1066.4 1621.3 500 kPa incr.
320
329
338
347
356
365
374
383
392
401
582
979
1377
1775
2173
2571
2969
3367
3764
4162
343
352
362
372
382
391
401
411
420
430
624
1049
1476
1902
2329
2755
3182
3609
4035
4462
521
536
551
566
580
595
610
625
639
654
949
1595
2244
2892
3541
4189
4838
5487
6135
6784
35
40
45
50
55
60
65
70
75
80
85
90
95
100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800
8000
8200
8400
8600
8800
Capacity in standard cubic meters per minute
of air at 16°C and 10% overpressure.1 Valve
discharging to atmospheric pressure.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
page 60
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
aIr capacItIeS - SerIeS JoS-e and JBS-e, MetrIc unItS
Set preSSureS 90 - 410 BarG
Set
orifice letter designation and effective area, sq.mm.
pressure
(barg)
d
71
e
126
f
198
G
325
h
506
J
830
K
1186
l
1841
M
2323
n
2800
p
4116
Q
7129
r
t
t2
10323 16774 17981
1 bar incr.
5 bar incr.
0.8
4.2
1.5
7.5
2.4
11.8
3.8
19.2
6
30.1
9.8
49.2
14.1
70.4
21.8
109.2
27.6
137.8
33.2
166
48.8
244.2
84.5
422.6
122.4
612.2
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
136
138
140
142
144
146
148
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
76.6
78.3
80.0
81.7
83.4
85.0
86.7
88.4
90.1
91.8
93.5
95.2
96.8
98.5
100
101
103
105
107
108
110
112
113
115
117
118
120
122
123
125
127
135
144
152
160
169
177
186
194
203
211
219
228
236
245
253
262
270
279
287
295
304
312
321
329
338
346
136
139
142
145
148
151
154
157
160
163
166
169
172
175
178
181
184
187
190
193
196
199
202
205
208
211
214
217
220
223
226
241
256
271
286
301
316
331
346
361
376
391
406
421
436
451
466
481
496
511
526
541
556
571
586
601
616
213
218
223
227
232
237
242
246
251
256
260
265
270
274
279
284
289
293
298
303
307
312
317
322
326
331
336
340
345
350
354
378
401
425
449
472
496
519
543
566
590
613
637
660
684
707
731
754
778
801
349
357
365
372
380
388
395
403
411
418
426
434
441
449
457
465
472
480
488
495
503
511
518
526
534
541
549
557
564
572
580
618
657
695
734
772
811
849
888
926
964
546
558
570
582
594
606
618
630
642
654
666
678
690
702
714
726
738
750
763
775
787
799
811
823
835
847
859
871
883
895
907
967
1027
1087
1147
895
915
934
954
974
993
1013
1033
1052
1072
1092
1112
1131
1151
1171
1190
1210
1230
1249
1269
1289
1308
1328
1348
1368
1387
1407
1427
1446
1466
1486
1584
1683
1781
1279
1307
1335
1363
1391
1419
1448
1476
1504
1532
1560
1588
1616
1645
1673
1701
1729
1757
1785
1813
1842
1870
1898
1926
1954
1982
2010
2039
2067
2095
2123
1984
2028
2072
2115
2159
2203
2246
Set
V
pressure
27218 (kpag)
199 213.3 324.3 100 kPa incr.
994.9 1066.4 1621.3 500 kPa incr.
9000
9200
9400
9600
9800
10000
10200
10400
10600
10800
11000
11200
11400
11600
11800
12000
12200
12400
12600
12800
13000
13200
13400
13600
13800
14000
14200
14400
14600
14800
15000
16000
17000
18000
19000
20000
21000
22000
23000
24000
25000
26000
27000
28000
29000
30000
31000
32000
33000
34000
35000
36000
37000
38000
39000
40000
41000
Capacity in standard cubic meters per minute
of air at 16°C and 10% overpressure.1 Valve
discharging to atmospheric pressure.
Capacities certified by the National Board of Boiler
and Pressure Vessel Inspectors and in accordance
with the ASME Boiler and Pressure Vessel Code,
Section VIII.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 61
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Water capacItIeS - SerIeS Jlt-JoS-e and Jlt-JBS-e, MetrIc unItS
dIfferentIal preSSureS ∆p1, 1 - 80 Bar2
differential
pressure
∆p – bar
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
orifice letter designation and effective area, sq.in.
d
71
45
63
77
89
100
109
118
126
134
141
148
154
161
167
173
178
184
189
194
199
204
209
214
219
223
227
232
236
240
244
248
252
256
260
264
268
271
275
279
282
286
289
293
296
299
303
306
309
312
316
322
328
334
340
346
352
357
363
368
374
379
384
389
394
399
e
126
80
112
137
159
177
194
210
225
238
251
263
275
286
297
308
318
328
337
346
355
364
373
381
389
397
405
413
421
428
435
442
450
457
463
470
477
483
490
496
503
509
515
521
527
533
539
545
551
556
562
573
584
595
605
616
626
636
646
656
665
675
684
693
702
711
f
198
124
176
215
249
278
305
329
352
374
394
413
431
449
466
482
498
514
529
543
557
571
584
598
610
623
635
647
659
671
682
694
705
716
727
737
748
758
768
778
788
798
808
817
827
836
845
854
863
872
881
899
916
933
949
965
981
997
1013
1028
1043
1058
1072
1087
1101
1115
G
325
203
288
353
407
455
499
539
576
611
644
676
706
735
762
789
815
840
865
888
911
934
956
977
998
1019
1039
1059
1078
1098
1116
1135
1153
1171
1188
1206
1223
1240
1256
1273
1289
1305
1321
1337
1352
1367
1382
1397
1412
1427
1441
1470
1498
1525
1552
1579
1605
1631
1656
1681
1705
1730
1754
1777
1800
1823
h
506
318
450
552
637
712
780
843
901
956
1007
1057
1104
1149
1192
1234
1275
1314
1352
1389
1425
1460
1495
1528
1561
1593
1625
1656
1686
1716
1745
1774
1803
1831
1858
1885
1912
1938
1964
1990
2015
2041
2065
2090
2114
2138
2161
2185
2208
2231
2253
2298
2342
2385
2427
2469
2509
2550
2589
2628
2666
2704
2741
2778
2815
2850
J
830
522
738
904
1044
1167
1278
1381
1476
1566
1651
1731
1808
1882
1953
2022
2088
2152
2215
2275
2335
2392
2449
2504
2557
2610
2662
2713
2762
2811
2859
2907
2953
2999
3044
3089
3132
3176
3218
3260
3302
3343
3383
3423
3463
3502
3541
3579
3617
3655
3692
3765
3836
3907
3976
4044
4111
4177
4241
4305
4368
4430
4491
4551
4611
4670
K
1186
746
1055
1292
1492
1668
1827
1973
2110
2238
2359
2474
2584
2689
2791
2889
2984
3075
3165
3251
3336
3418
3499
3577
3654
3730
3804
3876
3947
4017
4086
4153
4220
4285
4350
4413
4476
4537
4598
4658
4718
4776
4834
4892
4948
5004
5059
5114
5168
5222
5275
5379
5482
5582
5681
5778
5874
5968
6060
6151
6241
6330
6417
6503
6588
6672
l
1841
1157
1636
2004
2314
2588
2835
3062
3273
3472
3660
3838
4009
4173
4330
4482
4629
4772
4910
5045
5176
5304
5429
5551
5670
5787
5902
6014
6124
6233
6339
6444
6547
6649
6749
6847
6944
7040
7135
7228
7320
7411
7501
7590
7677
7764
7850
7935
8019
8102
8184
8346
8505
8661
8815
8965
9114
9259
9403
9544
9684
9821
9957
10090
10222
10352
M
2323
1460
2065
2530
2921
3266
3578
3864
4131
4382
4619
4844
5060
5266
5465
5657
5843
6022
6197
6367
6532
6694
6851
7005
7156
7303
7448
7590
7729
7866
8001
8133
8263
8391
8517
8642
8764
8885
9004
9122
9238
9353
9467
9579
9689
9799
9907
10014
10120
10225
10329
10533
10734
10931
11125
11315
11502
11686
11867
12045
12221
12395
12566
12734
12901
13065
n
2800
1760
2490
3049
3521
3937
4313
4658
4980
5282
5568
5840
6099
6348
6588
6819
7043
7260
7470
7675
7874
8069
8259
8444
8626
8804
8978
9149
9317
9482
9644
9804
9960
10115
10267
10417
10565
10710
10854
10996
11136
11274
11411
11546
11680
11812
11942
12071
12199
12325
12451
12697
12939
13177
13410
13639
13864
14086
14305
14520
14732
14941
15147
notes:
1. Differential Pressure (∆P) equals inlet pressure
(set pressure plus overpressure)
at flowing conditions minus back pressure.
page 62
CROMC-0297-US-1402
2. See pages 18 to 47 for Minimum and Maximum
Set Pressure Limits.
Copyright © 2014 Pentair
p
4116
2589
3661
4484
5178
5789
6342
6850
7323
7767
8187
8587
8969
9335
9687
10027
10356
10675
10984
11285
11579
11865
12144
12417
12684
12945
13202
13453
13700
13943
14181
14415
14646
14873
15097
15317
15535
15749
15960
16169
16375
16578
16779
16978
17174
17368
17560
17750
17938
18124
18308
18670
19026
19375
19718
20055
20387
20713
21034
21350
21662
21969
22272
Q
7129
4481
6338
7762
8963
10021
10978
11858
12676
13445
14173
14864
15525
16159
16769
17358
17927
18479
19015
19536
20043
20538
21022
21494
21956
22409
22853
23288
23716
24135
24548
24954
25353
25746
26133
26515
26891
27262
27628
27989
28346
28698
29046
29389
29729
30065
30397
30726
31051
31373
31691
32319
32935
33539
34133
34716
35290
35855
36411
36958
37498
38030
38554
r
10323
6491
9180
11244
12983
14516
15901
17175
18361
19475
20528
21530
22488
23406
24290
25142
25967
26766
27542
28297
29032
29749
30449
31133
31803
32459
33101
33732
34351
34959
35557
36144
36723
37292
37853
38406
38950
39488
40018
40541
41057
41567
42071
42569
43061
43548
44029
44505
44976
45442
45904
46813
47704
48580
49440
50285
differential
t
pressure
16774 ∆p – kpa
10550
14920
18273
21100
23591
25843
27913
29841
31651
33363
34991
36547
38040
39475
40861
42201
43500
44761
45988
47182
48348
49485
50597
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
4100
4200
4300
4400
4500
4600
4700
4800
4900
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200
7400
7600
7800
8000
Capacity in liters per minute of water at
21°C and 10% overpressure.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Water capacItIeS - SerIeS Jlt-JoS-e and Jlt-JBS-e, MetrIc unItS
dIfferentIal preSSureS ∆p1, 82 - 455 Bar2
differential
pressure
∆p – bar
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
136
138
140
142
144
146
148
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
430
440
450
455
orifice letter designation and effective area, sq.in.
d
71
404
409
414
419
424
428
433
438
442
447
451
455
460
464
468
473
477
481
485
489
493
497
501
505
509
513
517
521
525
528
532
536
540
543
547
565
582
599
616
632
647
663
677
692
706
720
734
748
761
774
787
799
812
824
836
848
859
871
882
894
905
916
927
937
948
953
e
126
720
729
737
746
754
763
771
779
787
795
803
811
819
826
834
842
849
856
864
871
878
885
893
900
907
914
920
927
934
941
948
954
961
967
974
1006
1037
1067
1096
1125
1152
1180
1206
1232
1257
1282
1307
1331
1354
1378
1400
1423
1445
1467
1488
1509
1530
1550
1571
1591
1611
1630
1649
1668
1687
1697
f
198
1129
1142
1156
1169
1182
1196
1208
1221
1234
1246
1259
1271
1283
1295
1307
1319
1331
1343
1354
1365
1377
1388
1399
1410
1421
1432
1443
1454
1464
1475
1485
1496
1506
1517
1527
1577
1625
1672
1718
1763
1807
1849
1891
1931
1971
2010
2048
2086
2123
2159
2195
2230
2265
2299
2332
2365
2398
G
325
1846
1868
1890
1912
1934
1955
1976
1997
2018
2038
2059
2079
2099
2118
2138
2157
2177
2196
2214
2233
2252
2270
2288
2306
2324
2342
2360
2377
2395
2412
2429
2446
2463
2480
2497
2579
2658
2735
2810
2883
2954
3024
3092
3158
3223
3287
3350
3411
Capacity in liters per minute of water at
21°C and 10% overpressure.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and
Pressure Vessel Code, Section VIII.
h
506
2886
2921
2955
2990
3023
3057
3090
3123
3155
3187
3219
3250
3281
3312
3343
3373
3403
3433
3462
3491
3520
3549
3577
3606
3634
3662
3689
3717
3744
3771
3798
3825
3851
3877
3903
4031
4156
4276
4393
4507
J
830
4728
4785
4842
4898
4953
5008
5062
5115
5168
5221
5273
5324
5375
5426
5476
5525
5575
5623
5671
5719
5767
5814
5861
5907
5953
5999
6044
6089
6133
6178
6222
6265
6309
6352
6394
6604
6807
7005
7197
7384
K
1186
6755
6837
6918
6998
7077
7155
7233
7309
7385
7460
7534
7608
7680
7752
7824
7895
7965
8034
8103
8172
8240
8307
8374
8440
8506
8571
8635
8700
8763
8827
8889
8952
9014
9075
9136
9436
l
1841
10481
10608
10734
10858
10980
11102
11222
11341
11458
11574
11690
11804
11917
12029
12139
12249
12358
M
2323
13228
13388
n
2800
p
4116
Q
7129
r
10323
t
16774
differential
pressure
∆p – kpa
8200
8400
8600
8800
9000
9200
9400
9600
9800
10000
10200
10400
10600
10800
11000
11200
11400
11600
11800
12000
12200
12400
12600
12800
13000
13200
13400
13600
13800
14000
14200
14400
14600
14800
15000
16000
17000
18000
19000
20000
21000
22000
23000
24000
25000
26000
27000
28000
29000
30000
31000
32000
33000
34000
35000
36000
37000
38000
39000
40000
41000
42000
43000
44000
45000
45500
notes:
1. Differential Pressure (∆P) equals inlet pressure
(set pressure plus overpressure) at flowing
conditions minus back pressure.
2. See pages 18 to 47 for Minimum and Maximum
Set Pressure Limits.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 63
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Saturated SteaM capacItIeS, unfIred preSSure VeSSel SerVIce - SerIeS JoS-e and JBS-e, MetrIc
unItS – Set preSSureS 0.35 - 76 BarG
orifice letter designation and effective area, sq.in.
Set
pressure
(barg)
d
71
e
126
f
198
G
325
h
506
J
830
K
1186
l
1841
M
2323
n
2800
p
4116
Q
7129
r
10323
t
16774
t2
17981
V
27218
1 bar incr.2
5 bar incr.2
40
201
71
357
112
559
183
915
286
1430
468
2342
669
3346
1038
5192
1310
6552
1580
7898
2323
11614
4021
20103
5824
29119
9465
47323
10145
50726
15424
77120
2109
2168
2228
2287
2347
2406
2466
2526
2585
2645
3836
5138
6449
7759
9070
10380
11691
13001
14312
15622
16932
18243
19553
20864
22174
23485
24795
26106
27416
30037
32658
35279
37900
40521
43142
45763
48383
51004
53625
56246
58867
61488
64109
66730
69351
71972
74593
77214
79834
82455
85076
87697
90318
92939
95560
98181
2542
2614
2685
2757
2829
2901
2973
3044
3116
3188
4624
6194
7774
9353
10933
12512
14092
15672
17251
18831
20411
21990
23570
25150
26729
28309
29889
31468
33048
36207
39366
42526
45685
48844
52004
55163
58322
61481
64641
67800
70959
74119
77278
80437
83596
86756
89915
93074
96234
99393
102552
105711
108871
3632
3738
3843
3949
4054
4160
4266
4371
4477
4582
4688
6800
9108
11431
13753
16076
18399
20721
23044
25367
27690
30012
32335
34658
36980
39303
41626
43949
46271
48594
53239
57885
62530
67176
71821
76467
81112
85758
90403
95048
99694
104339
108985
113630
118276
122921
127566
132212
136857
141503
146148
150794
155439
160085
9372
9637
9902
10167
10431
10696
10961
11225
11490
11755
17049
22837
28660
34484
40308
46131
51955
57779
63603
69426
75250
81074
86898
92721
98545
104369
110192
116016
121840
133487
145135
156782
168430
180077
191725
203372
215019
226667
238314
249962
261609
273257
284904
296552
308199
319846
331494
343141
15232
15662
16093
16523
16953
17383
17813
18244
18674
19104
27708
37114
46579
56043
65508
74973
84437
93902
103367
112831
122296
131760
141225
150690
160154
169619
179084
188548
198013
16327
16789
17250
17711
18172
18633
19094
19555
20017
20478
29701
39783
49928
60073
70218
80363
90509
100654
110799
120944
131089
141234
151380
161525
171670
181815
191960
202105
212251
24823
25525
26226
26927
27628
28329
29030
29731
30432
31133
45155
60483
75907
91332
106756
122180
137604
153028
168452
183876
199300
214724
230148
245572
260996
276421
291845
307269
322693
0.35
0.4
0.45
0.5
0.55
0.6
0.65
0.7
0.75
0.8
0.85
0.9
0.95
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
70.0
71.8
73.6
75.4
77.3
79.1
80.9
117
157
197
237
277
317
357
397
437
478
518
558
598
638
678
718
758
798
839
919
999
1079
1159
1240
1320
1400
1480
1560
1641
1721
1801
1881
1961
2042
2122
2202
2282
2362
2443
2523
2603
2683
2763
2844
2924
3004
3084
114
118
121
124
127
131
134
137
140
144
208
279
351
422
494
565
636
708
779
850
922
993
1065
1136
1207
1279
1350
1421
1493
1635
1778
1921
2064
2206
2349
2492
2635
2777
2920
3063
3206
3348
3491
3634
3777
3919
4062
4205
4348
4490
4633
4776
4919
5061
5204
5347
5490
159
164
169
174
180
185
190
195
200
205
210
215
220
225
327
438
550
662
774
886
997
1109
1221
1333
1445
1557
1669
1781
1892
2004
2116
2228
2340
2564
2787
3011
3235
3459
3682
3906
4130
4353
4577
4801
5025
5248
5472
5696
5920
6143
6367
6591
6814
7038
7262
7486
7709
7933
8157
8381
8604
261
269
277
286
294
302
311
319
327
335
344
352
360
369
535
717
900
1083
1266
1448
1631
1814
1997
2180
2363
2546
2729
2912
3095
3278
3461
3643
3826
4192
4558
4924
5290
5656
6021
6387
6753
7119
7485
7851
8216
8582
8948
9314
9680
10046
10411
10777
11143
11509
11875
12241
12606
12972
13338
13704
14070
notes:
1. Capacities below 2.0 bar set pressure are
calculated at 0.2 at bar overpressure.
408
421
434
447
460
473
486
499
512
525
538
551
564
577
837
1121
1407
1693
1979
2265
2551
2836
3122
3408
3694
3980
4266
4552
4838
5124
5410
5696
5982
6554
7126
7698
8270
8841
9413
9985
10557
11129
11701
12273
12845
13417
13988
14560
15132
15704
16276
16848
17420
17992
18564
19136
19707
20279
20851
21423
21995
668
690
711
732
753
775
796
817
839
860
881
902
924
945
1371
1836
2305
2773
3242
3710
4178
4647
5115
5584
6052
6520
6989
7457
7926
8394
8863
9331
9799
10736
11673
12610
13547
14483
15420
16357
17294
18231
19168
20104
21041
21978
22915
23852
24789
25725
26662
27599
28536
29473
30409
31346
32283
33220
34157
35094
36030
955
985
1016
1046
1077
1107
1137
1168
1198
1229
1259
1290
1320
1350
1959
2624
3293
3962
4632
5301
5970
6639
7309
7978
8647
9316
9986
10655
11324
11993
12663
13332
14001
15340
16678
18017
19355
20694
22032
23371
24709
26048
27386
28725
30063
31402
32740
34079
35417
36756
38094
39433
40771
42110
43448
44787
46125
47464
48802
50141
51479
1576
1623
1671
1718
1765
1812
1859
1907
1954
2001
2048
2095
3039
4071
5110
6148
7186
8225
9263
10302
11340
12378
13417
14455
15493
16532
17570
18609
19647
20685
21724
23800
25877
27954
30031
32107
34184
36261
38338
40414
42491
44568
46645
48721
50798
52875
54952
57028
59105
61182
63259
65335
67412
69489
71566
73642
75719
77796
79873
Shaded ValueS are JoS-e only.
5739
5922
6105
6288
6470
6653
6836
7019
7202
7384
7567
7750
7933
8115
11770
15766
19787
23807
27828
31849
35870
39890
43911
47932
51952
55973
59994
64014
68035
72056
76076
80097
84118
92159
100200
108242
116283
124324
132366
140407
148448
156490
164531
172572
180614
188655
196696
204738
212779
220821
228862
236903
244945
252986
261027
269069
277110
Capacity in kilograms per hour of steam
at 10% overpressure.1 Valve discharging
to atmospheric pressure.
2. Not valid below 2.0 bar set pressure.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
page 64
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
Saturated SteaM capacItIeS, unfIred preSSure VeSSel SerVIce - SerIeS JoS-e and JBS-e, MetrIc
unItS – Set preSSureS 78 - 200 BarG
orifice letter designation and effective area, sq.mm.
Set
pressure
(barg)
d
71
e
126
f
198
G
325
h
506
J
830
K
1186
l
1841
M
2323
n
2800
p
4116
Q
7129
r
10323
t
16774
t2
17981
1 bar incr. 2
5 bar incr. 2
40
201
71
357
112
559
183
915
286
1430
468
2342
669
3346
1038
5192
1310
6552
1580
7898
2323
4021
11641 20103
5824
29119
9465
47323
10145
50726
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
126
128
130
132
134
136
138
140
142
144
146
148
150
152
154
156
158
160
162
164
166
168
170
172
174
176
178
180
182
184
186
188
190
192
196
200
3165
3245
3325
3405
3485
3566
3646
3726
3806
3886
3967
4055
4139
4228
4317
4407
4497
4587
4677
4768
4864
4956
5047
5140
5237
5330
5428
5522
5621
5721
5816
5917
6018
6119
6222
6324
6433
6537
6647
6752
6864
6976
7089
7202
7316
7431
7553
7669
7793
7918
8043
8169
8304
8432
8568
8712
8851
8997
9295
9604
5632
5775
5918
6061
6203
6346
6489
6632
6774
6917
7060
7217
7367
7526
7684
7844
8003
8164
8325
8487
8657
8820
8983
9147
9321
9486
9662
9828
10005
10183
10351
10530
10710
10891
11073
11256
11450
11634
11831
12017
12216
12415
12616
12818
13021
13226
13443
13650
13870
14092
14315
14540
14779
15006
15249
15506
15752
16014
16542
17093
8828
9052
9275
9499
9723
9947
10170
10394
10618
10842
11065
11312
11547
11795
12044
12294
12544
12796
13048
13301
13569
13824
14080
14337
14609
14868
15143
15404
15681
15959
16224
16505
16787
17070
17355
17641
17946
18235
18543
18835
19146
19459
19774
20090
20409
20729
21070
21394
21739
22087
22436
22788
23163
23520
23899
24303
24689
25098
25927
26791
14435
14801
15167
15533
15899
16265
16630
16996
17362
17728
18094
18497
18882
19287
19694
20102
20512
20923
21336
21750
22187
22605
23023
23444
23889
24312
24761
25188
25641
26097
26529
26988
27449
27913
28379
28847
29345
29817
30321
30798
31307
31819
32334
32851
33372
33895
34453
34982
35547
36115
36687
37263
37875
38459
39080
39740
40370
41040
42395
43808
22567
23139
23711
24283
24854
25426
25998
26570
27142
27714
28286
28915
29518
30152
30787
31426
32066
32709
33354
34001
34685
35337
35992
36649
37345
38007
38709
39376
40085
40796
41472
42190
42911
43636
44364
45096
45874
46613
47400
48146
48942
49742
50546
51356
52169
52988
53859
36967
37904
38841
39778
40715
41651
42588
43525
44462
45399
46336
47367
48354
49392
50433
51479
52528
53581
54638
55698
56818
57887
58959
60036
61175
62260
63410
64503
65663
66829
67935
69111
70293
71480
72673
73872
75147
76357
77646
78869
80172
81483
82801
84126
85459
86799
52818
54156
55495
56833
58172
59510
60849
62187
63526
64864
66203
67676
69087
70570
72058
73551
75051
76555
78065
79580
81180
82707
84239
85777
87405
88955
90598
92160
81949
84026
86103
88180
90256
92333
94410
96487
98563
100640
102717
105003
107191
Capacity in kilograms per hour of steam
at 10% overpressure. Valve discharging to
atmospheric pressure.
Capacities certified by the National Board of
Boiler and Pressure Vessel Inspectors and in
accordance with the ASME Boiler and Pressure
Vessel Code, Section VIII.
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 65
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
croSBy BlocKBody preSSure relIef ValVeS
Many modern day process systems requiring
overpressure protection involve significantly
larger relief requirements and set pressures
that exceed the maximum limits as shown in
API Standard 526 for pressure relief valves.
For these applications, the most common
solution has been to design the relief system
with multiple, smaller orifice pressure relief
valves that can be set within the limitations
of API Standard 526.
The use of API Standard 526 valves can add
significant cost to the relief system since
multiple pressure relief valves result in
increased weight as well as added inlet
and discharge piping costs.
Crosby Series JOS-E-BLK, JBS-E-BLK,
BlockBody Pressure Relief Valves provide
a cost-effective alternative to multiple high
pressure, smaller orifice valves.
BlockBody pressure relief valves provide
greater capacity and can be set at pressures
significantly higher than the traditional
design, cast steel API Standard 526 relief
valves. These valves are ideal for high
pressure applications since multiple
high pressure, small orifice valves can
be replaced by fewer or in some cases,
a single BlockBody valve.
The BlockBody design also adds significantly
to the scope of materials that can be provided
in accordance with ASME Code Section VIII
by adding a wide array of wrought materials.
By utilizing the BlockBody design, higher
material integrity is offered which can
minimize non-destructive examination
(NDE) requirements.
BlockBody Relief Valves can be designed
to unconventional sizes. This can be an
advantage when retrofitting to existing
systems. Pressure relief valve outlet sizes
can be increased beyond API standards
to eliminate outlet piping reducers and
mitigate built-up back pressure in the
downstream piping.
featureS
Geometrically designed body
and bonnet
• Eliminates the need for specifying
multiple, smaller orifice cast steel
API Standard 526 pressure relief valves.
One single block body installation has
satisfied the capacity of twelve API
Standard 526 valves.
• BlockBody design provides significant
weight reduction when compared to
multiple smaller orifice PRVs.
availability of specific inlet/outlet
flange configurations and
combinations
• Unique center-to-face dimensions to meet
existing system dimensions.
forged Body Standard construction
Increases spectrum of materials available
for harsh service or corrosive service
applications.
• Availability of state-of-art metallurgy.
• Inlet and discharge piping costs can
be significantly reduced.
• Suitable for back pressure applications
considerably beyond CI 300 service.
• Less downtime and maintenance.
large Installed Base
• Fewer spare parts required.
• Reliable and field proven design.
page 66
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
BlocKBody deSIGn
Eyebolts to facilitate installation
Bolted Cap Construction
Internals based on standard design
Valve Superstructure (Body, Bonnet
and Cap) manufactured from solid
forged blocks
Fully rated outlets up to
2500 lb. available
No welding used in
construction
Geometric reduced main
valve block for additional
weight saving
Interference fitted inlet studs
Full nozzle design for
maximum tightness
Series JBS-e-BlK
typIcal MaterIalS of conStructIon and confIGuratIonS
Body, bonnet and cap:
trim:
optional construction:
• ASME SA105 Carbon Steel
• ASME SA479 Type 316 Stainless Steel
• O-ring soft seat
• ASME SA182 Grade F5a Alloy Steel
• ASME SB425 UNS N08825 Incoloy 825
• Special coating systems
• ASME SA182 Grade F9 Alloy Steel
• ASME SB446 UNS N06625 Inconel® 625
• Steam purge
• ASME SA479 Type 316 Stainless Steel
• ASME SA479 UNS S31803 Duplex
Stainless Steel
• Supplementary back pressure
balancing piston
• ASTM B348 Grade 4 Titanium
connections:
Spring:
• Ring type joint inlet/outlet
• High Temperature Alloy Steel
• API 6BX 10,000# inlet
• Titanium
• Grayloc®
• Inconel® X-750
• Techlok™
• ASME SB348 Grade 7 Titanium
• ASME SA182 Grade F51 Duplex
Stainless Steel
• ASME SA479 UNS-S32550 Super Duplex
Stainless Steel
• ASME SA350 Grade LF2 Carbon Steel
• ASTM B348 Grade 4 Titanium
• Chrome Steel
• Type 316 Stainless Steel
• Hastelloy® B
• Hastelloy® C
• Monel®
• Alloy 20
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 67
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
croSBy SerIeS JBS-Bp-e and Jlt-JBS-Bp-e Balanced BelloWS ValVeS
WIth SuppleMentary BacK preSSure BalancInG pISton
Series JBS-BP-E and JLT-JBS-BP-E are a
modification to the Crosby bellows pressure
relief valve designed and tested in
collaboration with engineers of one of the
world’s leading petroleum companies. This
adaptation provides additional assurance of
safe performance in the event of bellows
failure on installations having discharge
manifold systems where back pressures
(constant or variable) are present. The
Crosby bellows pressure relief valve (Series
JBS-E and JLT-JBS-E) was especially
developed for service under back pressure
conditions. The balanced area bellows
counteracts back pressure effects. However,
in case of a broken or ruptured bellows, the
valve would perform in the manner of a
standard valve without bellows. Introduction
of the Supplementary Back Pressure
Balancing Piston assures full performance
characteristics of the valve until necessary
replacement of the bellows can be made.
This design, illustrated at the right, thus
affords double protection.
Unless compensated for, the effects of back
pressure may cause (1) a change in the
opening pressure, (2) a decrease in valve
capacity, and (3) valve performance to
become unstable at higher back pressure.
Use of the bellows valve with supplementary
balancing piston maintains the balancing
effect even after bellows failure and in such
event would allow the valve to function in
essentially the same manner as with the
bellows intact. However, the bonnet of the
valve must be vented in order to insure
proper functioning of the valve. The vent also
serves for a tell-tale in case of a ruptured or
broken bellows.
design
The auxiliary balancing piston is
incorporated in the basic bellows valve,
modified to include the piston (5B) and the
cylinder (17) which is part of the disc holder.
The guiding clearances are held to a
minimum and, in addition, grooves in the
piston form a labyrinth seal to reduce flow
between the piston and cylinder. Thus, in
the event of a bellows failure, the leakage of
fluid to atmosphere is kept to a minimum.
croSBy Style JB larGe orIfIce preSSure relIef ValVeS
For larger flow applications that cannot be
satisfied by traditional API Standard 526
pressure relief valves, Crosby offers a wide
scope of large orifice relief valves available
in 10 x 14 through 20 x 24 configurations.
Refer to Catalog CROMC-0290-US for
further information.
page 68
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
orderInG InforMatIon
The primary purpose of Series JOS-E/JBS-E/JLT pressure relief valves is to protect lives
and property. In order to select the proper valve for your application, please provide the
information listed below. Details of the process fluid and conditions are especially important.
If there is any doubt as to selection or application of valves or parts, please contact your local
sales representative.
ordering Information
example
Quantity
5
Nominal valve size (inlet x orifice x outlet)
4xLx6
Valve series
JOS-E-45
Inlet connection rating and facing
600 RF
Outlet connection rating and facing
150 RF
Service (liquid, gas or vapor)
Air
Set pressure (psig)
800 psig
Back pressure (psig) if any, and
whether constant or variable
Atmosphere
Maximum service temperature (°F)
Ambient 60°F
Cap or lifting lever type
Type C
Valve materials
Standard
Seat material
Metal-to-metal standard
Code requirements
ASME Unfired Pressure Vessel
Code, Section VIII
Required capacity
45433 SCFM
Accumulation (allowable overpressure)
10%
Molecular weight – vapor
–
Specific gravity - gases and liquids
1.0
Viscosity – liquids
–
hoW to order
examples:
(1) To specify a G orifice (0.503 sq.in.) [325 sq.mm] Style JOS conventional valve with standard
materials for liquid service at 700 psig [48.2 barg] and at +700°F [+371°C]
with a packed lifting lever, the following designation applies:
11/2 G 3 JLT-JOS-E-46-D
(2) To specify an M orifice (3.60 sq.in.) [2323 sq.mm] Style JBS bellows valve with back
pressure balancing piston, Monel® nozzle and disc insert, and Kalrez® O-ring soft seats
for gas service at 200 psig [13.7 barg] and +400°F [+204°C] with threaded cap and test
rod, the following designation applies:
4M6 JBS-BP-E-OR-25-M1-K with Kalrez®
(3) To specify a K orifice (1.838 sq.in.) [1186 sq.mm] Style JOS conventional valve
with open bonnet and standard materials for ASME Code Section VIII steam service
at 600 psig [41.3 barg] and +600°F [+316°C] with a regular lifting lever, the following
designation applies:
3K4 JOS-H-E-45-C
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 69
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
orderInG InforMatIon – partS
4. Shop number (from valve nameplate)
Pentair Valves & Controls provides special
“fast response” delivery service of spare
parts to satisfy unplanned parts
requirements. Fast response delivery service
can be initiated by contacting your local
Pentair Valves & Controls representative.
Emergency delivery service is available direct
from the factory, 24 hours a day,
7 days a week by calling 281-274-4400.
5. Serial number (from valve nameplate)
Springs with washers
6. Original purchase order number
(if shop number has been destroyed).
To order springs with washers, in addition to
the other information included for “Parts,”
the required valve set pressure must also be
specified. If the spring is for a non-bellows
valve, and there is a constant back pressure
condition, that too should be specified. Also
specify spring material and coating if other
than standard.
parts
To order parts, the following information
should be included:
1. Quantity
2. Part name, i.e., disc insert
3. Size, series and valve number
Sample Nameplate
(Figures shown are for illustrative purposes only.)
CERTIFIED BY
ANDERSON GREENWOOD CROSBY, STAFFORD, TX
replacement valves
To replace a valve in service, the shop
number, serial number, set pressure and
previous order number should be specified.
page 70
CROMC-0297-US-1402
Copyright © 2014 Pentair
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
preSSure relIef ValVe and Vent SIZInG SoftWare
The Pentair PRV2SIZE sizing-and-selection
software incorporates over 135 years of
engineering expertise and experience with a
wide array of Anderson Greenwood, Crosby
and Varec pressure relief devices into one
software package. With the Pentair
PRV2SIZE software, customers and
engineers can address numerous
applications in a single pressure relief device
sizing-and-selection platform, without the
need to use multiple sizing programs.
featuring:
• Integrated sizing-and-selection
capabilities for various types of pressure
relief devices
Offering detailed pressure relief device
specification information, the integrated
capabilities of the PENTAIR PRV2SIZE
software provide specifying engineers with
valve sizing-and-selection data for a wide
range of applications and process scenarios.
A comprehensive and easy-to-use program
that has been developed to present
recommendations based on the combined
experience of Anderson Greenwood, Crosby
and Varec in sizing, selecting, testing and
designing of pressure relief devices.
The many features, options and enhanced
user-interface capabilities of this software
program assist in the task of sizing and
selecting pressure relief devices.
• Industry-standard sizing methodologies
• Fully configured product selection
• Detailed product specifications including
cross-sectional drawings with dimensions
and weights
Copyright © 2014 Pentair
CROMC-0297-US-1402
page 71
croSBy SERIES JOS-E, JBS-E, JLT-JOS-E, JLT-JBS-E, JOS-H-E
SPRING LOADED PRESSURE RELIEF VALVES
5500 WAYZATA BLVD # 800, MINNEAPOLIS, MN 55416 WWW.PENTAIR.COM/VALVES
All Pentair trademarks and logos are owned by Pentair, Ltd. All other brand or product names trademarks or registered marks of their respective owners.
Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice. Pentair is an equal
opportunity employer.
page 72
CROMC-0297-US-1402
© 2014 Pentair. All rights reserved.