www.swagelok.com
Pre s sure Re gulators
RHPS Se r ie s
■ Pressure-reducing models
■ Back-pressure models
■ Spring-, dome-, and air-loaded
■ 1/4 to 4 in. end connections
■ Working pressures up to 10 150 psig (700 bar)
■ Temperatures from –4 to 176°F (–20 to 80°C)
2
Pressure Regulators, RHPS Series
Contents
Pressure-Reducing Regulators
Pressure-Reducing Regulators
Features, 4
Spring-Loaded—RS Series, 8
Dome-Loaded—RD Series, 32
Types of Regulators, 5
Terminology, 5
Components, 6
Testing, 7
Cleaning and Packaging, 7
Compact,
General-Purpose
RS(H)2 Series,
10
Compact,
General-Purpose
RD2 Series, 34
General-Purpose
RS(H)4, 6, 8 Series,
13
General-Purpose
RD(H)6, 8 Series,
38
General-Purpose
RS(H)10, 15, 20 Series,
18
Differential
RD(H)6DP Series,
41
High-Sensitivity
LRS(H)4 Series, 21
High-Sensitivity
LPRS4, 6, 8 Series,
25
Integral Pilot-Operated
RD(H)10, 15 Series, 43
High-Sensitivity
LPRS10, 15 Series,
28
Integral Pilot-Operated
RD(H)20, 25 Series, 49
Pressure Regulators, RHPS Series
Pressure-Reducing Regulators
Back-Pressure Regulators
Back-Pressure Regulators
Dome-Loaded—RD Series
Spring-Loaded—BS Series, 60
Dome-Loaded—BD Series
Compact,
General-Purpose
BS(H)2 Series, 62
General-Purpose
BS(H)4, 6, 8 Series,
65
Integral Pilot-Operated
RD(H)30, 40 Series, 53
General-Purpose
BS(H)10, 15 Series,
69
High-Sensitivity
LBS4 Series, 71
Integral Pilot-Operated,
High-Sensitivity
LPRD20, 25, 30, 40 Series, 55
Air-Loaded
RA4, 6, 8 Series,
57
3
Contact your authorized Swagelok
sales and service representative for
information about dome-loaded, backpressure regulators.
4
Pressure Regulators, RHPS Series
Features
Regulator Adjusting Screw
Fine pitched threads provide
improved adjustability and
resolution when setting or
adjusting pressure.
Set-Pressure Spring
■ provides pressure control
across a wide range of flow
rates
■ long spring improves droop
performance.
Threaded Vent
allows monitoring of the diaphragm
or piston sensing mechanism.
 WARNING: Threaded-vent
regulators can release system
fluid to atmosphere. Position
the threaded vent connection
away from operating
personnel.
Diaphragm Sensing Mechanism
■ typically used in low outlet
pressure applications
■ provides greater accuracy
in sensing changes in outlet
pressure
■ available in PTFE and a variety of
elastomers
■ designed with a short stroke to
maximize cycle life.
Diaphragm Support Plate
promotes diaphragm life.
Bottom Spring Guide
■ engages diaphragm to distribute
forces evenly
■ protects diaphragm from
premature failure.
Inlet
Outlet
Seal Materials
available in a variety of materials for
enhanced chemical compatibility in
a wide range of applications.
Seat Seal Materials
available in PCTFE, PEEK, and
a variety of elastomers.
Balanced Poppet Design
reduces supply-pressure effect
and lockup.
Body Material
316L SS for improved corrosion
resistance.
Piston Sensing Mechanism
■ typically used to regulate higher
pressures than a diaphragm
sensing mechanism
■ more resistant to damage
caused by pressure spikes
■ designed with a short stroke to
maximize cycle life.
Body Plug
allows for easy maintenance and
more up-time.
Piston
Piston plate
Pressure Regulators, RHPS Series
5
Types of Regulators
There are two types of RHPS series pressure regulators
■ Pressure-reducing regulators with spring or dome loading
■ Back-pressure regulators with spring or dome loading
How a Pressure Regulator Works
A pressure regulator has a sensing element (piston or diaphragm) which, on one side, is subjected to a load force (FS) created by
a spring (as shown below) or a gas pressure. On the other side, the sensing element is subject to the force (F) of the system fluid.
Pressure-Reducing Regulators
Back-Pressure Regulators
FS
FS
F
F
Outlet
Inlet
Inlet
Inlet pressure
Outlet pressure
Outlet
FS = Spring force
F = Fluid force / outlet pressure
FS = Spring force
F = Fluid force / outlet pressure
Inlet pressure
Outlet pressure
Pressure reducing
std
The function of a pressure-reducing regulator is to reduce a
pressure and to keep this pressure as constant as possible
while the inlet pressure and the flow may vary. This is
accomplished by the fluid force (F) being equal to or slightly
lower than load force (FS) causing the poppet to open.
Pressure reducing
std
The function of a back-pressure regulator
is to keep inlet
Go
Go
Gi Go
Go
pressure below aGset pressure.
This means
the regulator
G
G
G
G
G
o
o
i
o
o
i
can either open in case of excess pressure or close when
the pressure drops below a desired pressure. This is
accomplished by the fluid force (F) being equal to or slightly
lower than load force (FS) causing the poppet to close.
Gi
Back Pressure
std
Back Pressure
std
Terminology
Accumulation—an increase in inlet pressure caused by an
increase in flow rate to a back-pressure regulator.
Creep—an increase in outlet pressure typically caused by
regulator seat leakage.
Dependency—see supply pressure effect (SPE).
Droop—a decrease in outlet pressure caused by an
increase in flow rate to a pressure-reducing regulator.
Lockup—an increase in outlet pressure that occurs as the
flow rate is decreased to zero.
Self-venting—a feature that reduces outlet pressure in
a pressure-reducing regulator when the regulator set
point is decreased and there is no flow through the
regulator.
Sensitivity—the degree to which the regulator responds to
force balance changes.
Supply pressure effect (SPE)—the
Gi Go
Gi effect on
Gi the set
pressure of a pressure-reducing regulator as a result
Gi Go
Gi
Gi Go
Gi
of a change in inlet pressure, normally experienced as
an increase in outlet pressure due to a decrease in inlet
pressure. Also known as Dependency.
Threaded vent—a connection that allows monitoring of the
Go Gi
Gi
Gi
diaphragm or piston sensing mechanism.
Gi
Go Gi
Gi
Gi Go
Gauge Connection Configuration Symbols
InletOutlet
Gi =Inlet gauge
Go = Outlet gauge
Gauge Connection Configurations—
Pressure-Reducing
Regulators
Pressure reducing
std
Standard
Go
Set pressure—the desired outlet pressure of a pressurereducing regulator, normally stated at a no-flow
condition.
GN2
Gi Go
Back Pressure
std
GN4
Go
GN5
Go Gi
Gi Go
Gi Go
6
Pressure Regulators, RHPS Series
Components
Every RHPS series pressure regulator has three common design components:
■ Loading mechanism (spring, dome, or combination spring and dome)
■ Sensing mechanism (diaphragm or piston)
■ Controlling mechanism (poppet)
Loading Mechanism
The loading mechanism is the component of the regulator that balances the force or pressure.
Spring-Loaded
Dome-Loaded
In a spring-loaded regulator, a coil spring is used to generate
a load (FS ) against the sensing mechanism. The amount of
spring force or load can be adjusted by turning the handle or
adjusting screw of the regulator.
In a dome-loaded regulator, a gas is fed into the dome
chamber above the sensing mechanism at a pressure
equal to or slightly above the required outlet pressure. This
volume of gas is used like a spring. The dome pressure (Fd )
is typically supplied by a second regulator called a pilot
regulator.
Closed
FS
Fd
FS or Fd ≤ F
F
F
Poutlet
Pinlet
Poutlet
Pinlet
Open
FS
Fd
FS
F
or Fd >
F
Poutlet
Pinlet
F
Poutlet
Pinlet
Combination Spring- and Dome-Loaded
The spring- and dome-loaded mechanisms can be used in combination with one another. The resulting effect provides the
function of a differential pressure regulator. This regulator is designed to control pressure which is the sum of a reference
pressure (provided by the dome) and a bias pressure (provided by the spring). See RD(H)6DP series on page 41 for details.
Pressure Regulators, RHPS Series
Components
BAR
7
BAR
Sensing Mechanisms
Seat Design
The sensing mechanism is the component separating the
spring/dome force and the fluid force. It senses changes
in pressure and allows the regulator to react and to try to
restore the original set pressure.
The poppet within the RHPS series regulator can have a hard
or soft seat seal depending on the pressure requirements of
the application.
■
Diaphragm Sensing
piece of material usually made
of an elastomer, PTFE, or metal
depending on the application.
A diaphragm is normally
used for low control-pressure
applications in spring-loaded
regulators and in all domeloaded regulators.
■
BAR
Diaphragm
component which is generally
used to regulate higher control
pressures than a spring-loaded
regulator with a diaphragm.
They are also more resistant to
damage caused by pressure
spikes.
Seat Seal
Seat
seal
Testing
The controlling mechanism, also known as a poppet, acts to
reduce a high inlet pressure to a lower outlet pressure. There
are two designs used in RHPS regulators.
Balanced Poppet
In a balanced poppet design,
Outlet
Orifice
Every RHPS series regulator is factory tested with nitrogen
or air. Shell testing is performed to a requirement of no
detectable leakage with a liquid leak detector.
Cleaning and Packaging
Every RHPS series regulator is cleaned and packaged in
accordance with Swagelok Standard Cleaning and Packaging
(SC-10), MS-06-62.
Cleaning and packaging to ensure compliance with product
cleanliness requirements stated in ASTM G93 Level C is
available.
Inlet
O-ring
Oxygen Service Hazards
For more information about hazards and risks of oxygenenriched systems, see the Swagelok Oxygen System Safety
technical report, MS-06-13.
Unbalanced Poppet
In an unbalanced poppet
design, the inlet pressure
provides the majority of the
shutoff force. Unbalanced
poppets are generally used
in small regulators or larger
regulators in low-pressure
applications.
Seat
seal
Piston
Controlling Mechanisms
■
■ Hard
to regulate pressures up to
10 150 psig (700 bar). The seat seal
materials are PCTFE for pressures
up to 5800 psig (400 bar) and PEEK
for pressures up to 10 150 psig
(700 bar).
Piston Sensing
the area on which the inlet
pressure acts is reduced
due to the orifice through
the poppet and balancing
O‑ring. The advantages of
this design are a reduced
seat load, less sensitivity to
SPE, and the ability to have a
larger seat for more flow.
regulate pressures up to 1015 psig
(70.0 bar). The seat seal materials
are generally elastomeric, and
include fluorocarbon FKM,
perfluorocarbon FFKM, nitrile, and
EPDM.
A hard seat seal is designed
A piston is a cylindrical metal
■
Soft Seat Seal
A soft seat seal is designed to
The diaphragm is a large, flat
BAR
■
Outlet
Inlet

RHPS series pressure regulators are not “Safety
Accessories” as defined in the Pressure Equipment
Directive 97/23/EC.
 Do not use the regulator as a shutoff device.
 WARNING: Self-venting and threaded-vent regulators
can release system fluid to atmosphere. Position the
self-vent hole or the threaded vent connection away
from operating personnel.
8
Pressure Regulators, RHPS Series
Pressure-Reducing, Spring-Loaded Regulators—RS Series
The RS series pressure-reducing regulators are suitable
for most gases and liquids. The RS series regulators
feature various poppet designs, a choice of sensing types
(diaphragm or piston), and seat and seal materials to
accommodate a variety of pressure, temperature, and flow
conditions.
The RSH series regulators are a high-pressure version of the
RS series regulators, and the LRS and LPRS series are lowpressure, high-accuracy versions of the RS series regulators.
The RS series regulators are available in sizes from 1/4 to 2 in.
with a choice of threaded or flange end connections.
Features
The RS series regulators are available with many options,
including a variety of gauge connection configurations,
self venting, internal filter, external feedback, antitamper,
special cleaning to ASTM G93 Level C, and NACE MR0175/
ISO 15156-compliant models.
Pressure-Temperature Ratings
■ Spring-loaded pressure control
■ Diaphragm or piston sensing
mechanisms
■ Red knob handle or screw
adjustment
■ 316L stainless steel materials of
construction for corrosion resistance
■ Maximum inlet pressure ratings:
232 to 10 150 psig (16.0 to 700 bar)
■ Pressure control ranges:
Up to 0 to 10 150 psig (0 to 700 bar)
Seat Seal /
O-Ring Material
PCTFE➀➁
Fluorocarbon FKM➀, Nitrile,
EPDM, FFKM➁
PEEK➀➁
RS2
RS2,
RSH4, 6, 8 RSH4, 6, 8
RSH10
RSH10,
RS4, 6, 8
RSH15
RSH15,
RS10
RSH20
RSH20
RS15
Series
LRSH4
LRSH4
RSH2
RS20
LRS4
Temperature
Maximum Inlet Pressure / Working Pressure
°F (°C)
psig (bar)
–4 (–20) to 95(35)
LPRS4
LPRS6
LPRS8
LPRS10
LPRS15
5800 (400)
149
(65) 3987 (275)
5800 (400)
10 150 (700) 1015 (70.0) 507 (35.0)
232 (16.0)
176
(80) 1812 (125)
➀Regulators (including high-pressure models) built with fluorocarbon FKM seat seals, diaphragms, or
O-ring seals, are limited to 5°F (–15°C).
➁ Regulators (including high-pressure models) built with FFKM seat seals, diaphragms, or O-ring seals,
are limited to 14°F (–10°C).
Technical Data—Performance
RS(H)2
Series
RS2
RSH2
RS(H)4, 6, 8
RS(H)10, 15, 20
LRS(H)4
Maximum
Inlet Pressure
psig (bar)
Sensing
Type
Flow
Data
on Page
0.05
Piston
11
406 (28.0) diaphragm
5 800 (400) piston
1.84
Diaphragm
or piston
14
203 (14.0) diaphragm
5 800 (400) piston
1.95
Diaphragm
or piston
15
203 (14.0) diaphragm
5 800 (400) piston
2.07
Diaphragm
or piston
16
290 (20.0) diaphragm
3 625 (250) piston
3.79
Diaphragm
or piston
19
290 (20.0) diaphragm
3 625 (250) piston
7.30
Diaphragm
or piston
—
Diaphragm
—
5 800 (400)
5 075 (350)
10 150 (700)
1 015 (70.0)
RSH4
5 800 (400)
RS6
1 015 (70.0)
RSH6
5 800 (400)
RS8
1 015 (70.0)
RSH8
5 800 (400)
RS10
1 015 (70.0)
RSH10
5 800 (400)
RS15
1 015 (70.0)
RSH15
5 800 (400)
RS20
1 015 (70.0)
RSH20
5 800 (400)
LRSH4
Flow
Coefficient
(Cv )
10 150 (700)
RS4
LRS4
Maximum Outlet
Control Pressure
psig (bar)
507 (35.0)
5 800 (400)
290 (20.0)
290 (20.0)
LPRS4
LPRS6
LPRS4, 6, 8
LPRS15
LPRS10, 15
0.73
0.10
Diaphragm
22
23
1.84
232 (16.0)
43 (3.0)
LPRS8
LPRS10
13
1.95
Diaphragm
—
2.07
232 (16.0)
43 (3.0)
3.79
7.30
Diaphragm
29
29
Pressure Regulators, RHPS Series
9
Pressure-Reducing, Spring-Loaded Regulators—RS Series
RS Series Regulator
with Diaphragm Sensing
and Standard Knob Handle
RSH Series Regulator
with Piston Sensing
and Antitamper Option
Soft seat design
for low-pressure
applications
Hard seat design
for high-pressure
applications
Inlet
Outlet
Inlet
Outlet
Technical Data—Design
Series
RS2
RSH2
RS4
RSH4
RS6
RSH6
RS8
RSH8
Inlet and Outlet Connections
Gauge Connection
Weight
(Without
Flanges)
lb (kg)
0.087
(2.2)
1/4 in. NPT
1/4 in. NPT
3.3 (1.5)
10
0.39(10.0)
1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT
7.7 (3.5)
13
0.39(10.0)
3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT
9.9 (4.5)
13
0.39(10.0)
1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT
9.9 (4.5)
13
1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT or
ISO/BSP parallel thread
16.5 (7.5)
18
0.75(19.0)
1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT or
ISO/BSP parallel thread
22.0 (10.0)
18
0.98(25.0)
2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
1/4 in. NPT or
ISO/BSP parallel thread
39.6 (18.0)
18
1/2 in. NPT
1/4 in. NPT
5.7 (2.6)
21
Seat
Diameter
in. (mm)
RS10
0.55(14.0)
RSH10
0.53(13.5)
RS15
RSH15
RS20
RSH20
LRS4
0.23(6.0)
LRSH4
0.087
(2.2)
LPRS4
LPRS6
1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
0.39(10.0)
3/4 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
LPRS8
1 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
LPRS10 0.55(14.0)
1 in. NPT, ISO/BSP parallel thread, EN or ASME flange
LPRS15 0.75(19.0)
1 1/2 in. NPT, ISO/BSP parallel thread, EN or ASME flanges
More
Information
on Page
11.0 (5.0)
1/4 in. NPT
12.1 (5.5)
25
12.1 (5.5)
1/4 in. NPT or
ISO/BSP parallel thread
17.6 (8.0)
22.0 (10.0)
28
10
Pressure Regulators, RHPS Series
Compact, General-Purpose, Spring-Loaded Pressure-Reducing Regulators—
RS(H)2 Series
Features
Options
■ Bottom mounting
■ No filter—for liquid applications
■ Sealed spring housing
■ NACE MR0175/ISO 15156-compliant
models (nonventing and no-filter
models only)
■ Low-friction piston for better control
■ Cartridge poppet assembly with
■ Nonventing
25 μm filter for ease of service
■ Self-venting
■ Special cleaning to ASTM G93 Level C
■ Threaded vent below panel for safety
■ Panel mounting kit sold separately—
no disassembly required
Technical Data
Series
Maximum
Maximum
Outlet Control
Inlet Pressure
Pressure
psig (bar)
psig (bar)
RS2
5 800 (400)
5 075 (350)
RSH2
10 150 (700)
10 150 (700)
Sensing
Type
Temperature
Range
°F (°C)
Flow
Coefficient
(Cv)
–4 to 176 (–20 to 80)
See PressureTemperature
Ratings, page 8.
Piston
Seat
Inlet and
Diameter
Outlet
Gauge / Vent
in. (mm) Connections Connections
0.05
0.087
(2.2)
1/4 in. NPT
Gauge:
1/4 in. NPT
Vent:
1/8 in. NPT
See page 11 for flow data.
Materials of Construction
RS2 Series Regulator with
Cartridge Poppet Design
1
Component
1 Knob assembly with
adjusting screw, nuts,
washer
Material / Specification
2 Spring housing cover
431 SS / A276
3 Spring housing
Red ABS with A2-70
316L SS / A479 or EN10088
4 C-ring
2
3
4
5
6
9
14
17
9
18
19
7
8
9
10
11
12
13
15
16
5 Spring guide
A2
316L SS / A479 or EN10088
6 Set spring
7 Bottom spring guide
50CRV4
316L SS / A479 or EN10088
8 Relief seat
9 O-rings
10 Poppet housing
PEEK or PCTFE
EPDM, FKM, FFKM, or nitrile
316L SS / A479 or EN10088
11 Seat
PEEK or PCTFE
12 Poppet
13 Seat retainer
316L SS / A479 or EN10088
14 Piston plate
15 Filter
16 Plug
17 Piston
316L SS
316L SS / A479 or EN10088
18 Poppet spring
19 Body
302 SS / A313
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Weight
lb (kg)
3.3 (1.5)
Pressure Regulators, RHPS Series
11
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RS2 Series
Flow Coefficient: 0.05
Maximum Inlet Pressure: RS2—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 362 psig (0 to 25.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
400
0 to 362 psig (0 to 25.0 bar)
0
50
100
150
200
250
Inlet Pressure, psig (bar)
350
25
Outlet Pressure, psig
300
20
725 (50.0) 1015 (70.0)
250
15
200
2900 (200) 5800 (400)
150
10
580 (40.0)
100
1015 (70.0)
5.0
2900 (200), 5800 (400)
2900 (200), 5800 (400)
580 (40.0) 1015 (70.0)
50
0
0
60
30
Outlet Pressure, bar
0 to 145 psig (0 to 10.0 bar)
90
120
150
0
180
120
150
180
Nitrogen Flow, std ft3/min
RS2 Series
0
30
Flow Coefficient: 0.05
Maximum Inlet Pressure: RS2—5800 psig (400 bar)
25
Outlet Pressure Control Range: 0 to 5075 psig (0 to 350 bar)
20
0 to 1450 psig (0 to 100 bar)
6000
15
0 to 2537 psig (0 to 175 bar)
0 to 5075 psig (0 to 350 bar)
0
90
350
300
Nitrogen Flow, Nm3/h
50,0 (725) 70,0 (1015)
75
150
225
300
375
450
250
E
200
360
200 (2900)psig
Inlet Pressure,
400(bar)
(5800)
4800
10
Outlet Pressure, psig
400
150
300
40,0 (580)
3600
5,0
70,0 (1015)
5800 (400)
200 (2900), 400 (5800)
200 (2900), 400 (5800)
40,0 (580) 70,0 (1015)
0
2400
0
50
100
180
0
150
200
250
5800 (400)
2900 (200)
1200
2900 (200)
1015 (70.0)
0
0
2.5
120
5800 (400)
180
60
240
0
300
240
300
Nitrogen Flow, std ft3/min
2.0
0
5.0
60
7.0
120
180
1.5
360
120
5800 (400)
2900 (200)
60
100
240
50
Outlet Pressure, bar
Pressure Control Range
60
20.0
6000
JP
40.0
4800
12
Pressure Regulators, RHPS Series
Dimensions
Cartridge Poppet Assembly Detail
Dimensions, in inches (millimeters), are for reference only and
are subject to change.
Cartridge housing
Configuration
Top
Inlet gauge
connection
Seat seal
O-ring
Outlet gauge
connection
Inlet
Poppet
Seat retainer
Outlet
Shown with tubing
for clarity; tubing
not included.
Filter, 25 µm
Poppet spring
Plug
Venting
■ Self-venting is standard.
■ Threaded vent connection is
below panel for safety
■ A nonventing option is
available.
Threaded
vent
connection
2.28
(58.0)
 WARNING: Self5.83
venting regulators can
release system fluid to
atmosphere. Position the
self-vent hole away from operating personnel.
Threaded
vent
connection
(148)
2 gauge
connections
0.67
(17.0)
Bottom Mounting
Panel Mounting Kit
No disassembly required when using panel mount kit.
Panel mounting kit ordering numbers:
RS2 series: RS2-P-02
RSH2 series: RSH2-P-02
2.15 (54.5)
RS2
2.30 (58.5)
RSH2
2.76 (70.0)
1.26
6
.3
(32.0)
0.87
(22.0)
0)
0.
(6
2
2 holes,
0.22 (5.5)
2 mounting holes
M5, 0.20 (5.0) deep
Panel hole
A
A
3.13 (79.5)
2.36 (60.0)
Panel ring
Ordering Information
Build an RS2 or RSH2 series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
RS
N2- 02 - 1 - V V K- LNV
1 Series
RS =5800 psig (400 bar) maximum
inlet pressure
RSH =10 150 psig (700 bar) maximum
inlet pressure
2 Inlet / Outlet
N2 = 1/4 in. female NPT
3 Body Material
02 = 316L SS
4 Pressure Control Range
RS and RSH series
1 = 0 to 145 psig (0 to 10.0 bar)
2 = 0 to 362 psig (0 to 25.0 bar)
3 = 0 to 1450 psig (0 to 100 bar)
4 = 0 to 2537 psig (0 to 175 bar)
5 = 0 to 5075 psig (0 to 350 bar)
RSH series only
6 = 0 to 10 150 psig (0 to 700 bar)
5 Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
6 Piston Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
7 Seat Seal Material
K = PCTFE (RS only)
P = PEEK (RS and RSH)
8 Options
L = No filter
N = NACE MR0175/ISO 15156
NV = Nonventing
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
13
General-Purpose, Spring-Loaded Pressure-Reducing Regulators—
RS(H)4, RS(H)6, and RS(H)8 Series
Features
Options
■ Balanced poppet design
■ Antitamper
■ Diaphragm or piston sensing
■ Gauge connections—choice of 4
■ Threaded vent to monitor sensing
seal integrity
configurations
■ NACE MR0175/ISO 15156-compliant
models
■ Self-venting
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
RS(H)4
RS(H)6
RS(H)8
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
RS:
1015 (70.0)
RS:
406 (28.0)
RSH:
5800 (400)
RSH:
5800 (400)
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (°C)
(Cv)
in. (mm)
–4 to 176
1.84
(–20 to 80)
Sensing Type
Diaphragm:
RS4: 0 to
406 psig (28.0 bar)
See
RS6, 8: 0 to
Pressure203 psig (14.0 bar) Temperature
Piston: 0 to
Ratings,
5800 psig (400 bar)
page 8.
1.95
0.39
(10.0)
Connections
Inlet and Outlet
Size
Type
1/2 in.
DN15
NPT
ISO/BSP
parallel
thread
ASME or
EN flange
3/4 in.
DN20
1 in.
DN25
2.07
Gauge
and Vent
Gauge:
1/4 in. NPT
Vent:
1/8 in.
ISO/BSP
parallel
thread
Weight
(Without
Flanges)
lb (kg)
7.7 (3.5)
9.9 (4.5)
See pages 14 to 16 for flow data.
Materials of Construction
RSH Series Regulator
with Piston Sensing
and Antitamper Option
14
15
Common
Components
RS Series Regulator
with Diaphragm Sensing
and Standard Knob
1
2
3
4
10
10
11
10
12
13
24
11
316L SS / A479 or EN10088
14 Knob assembly with
adjusting screw, nuts,
washers
15 Antitamper option
with O-ring, set screw
Red ABS with A2-70
316L SS and A2-70
(O-ring same as item 10)
Diaphragm Only
16 Diaphragm
EPDM, FKM, or nitrile
17 Diaphragm plate
316L SS / A479 or EN10088
Piston Only
18 Piston
19 Piston plate
316L SS / A479 or EN10088
20 Seat
21 Seat seal
EPDM, FKM, or nitrile
22 Poppet housing
316L SS / A479 or EN10088
23 Seat
24 Seat seal
PEEK or PCTFE
Wetted lubricant: Silicone-based, synthetic hydrocarbon-based
Sensing
Mechanism
18
19
11
Actuation
13 Body plug
23
20
21
22
10
11
12
RS
Only
17
9
Component
Material / Specification
Spring housing
316L SS / A479 or EN10088
Spring guide
Ball
420 SS (Hardened)
Set spring
302 SS / A313
Cap screw
A4-80
Washer
A4
Bottom spring guide
316L SS / A479 or EN10088
Body
RS 316L SS / A479 or EN10088
Poppet
RSH
431 SS / A276
O-rings
EPDM, FKM, or nitrile
Backup ring
PTFE
Poppet spring
302 SS / A313
RSH
Only
16
5
6
7
8
9
1
2
3
4
5
6
7
8
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
14
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RS4 Series
Flow Coefficient: 1.84
Maximum Inlet Pressure: RS4—1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 406 psig (0 to 28.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
400
0 to 101 psig (0 to 7.0 bar)
0
100
300
200
500
400
0 to 203 psig (0 to 14.0 bar)
600
700
Inlet Pressure, psig (bar)
24
0 to 406 psig (0 to 28.0 bar)
1015 (70.0)
Outlet Pressure, psig
300
20
580 (40.0)
16
1015 (70.0)
200
580 (40.0)
100
0
580 (40.0)
150
75
US
4.0
1015 (70.0)
1015 (70.0) 218 (15.0)
218 (15.0)
580 (40.0)
0
8.0
1015 (70.0)
580 (40.0)
218 (15.0)
12
Outlet Pressure, bar
0 to 43 psig (0 to 3.0 bar)
225
300
375
450
300
375
450
0
Nitrogen Flow, std ft3/min
0
75
150
225
Flow Coefficient: 1.84
Maximum Inlet Pressure: RS4—1015 psig (70.0 bar); RSH4—5800 psig (400 bar)
24
Outlet Pressure Control Range: 0 to 1160 psig (0 to 80.0 bar)
20
Pressure Control Range
0 to 406 psig (0 to 28.0 bar)
16 0
1000
0 to 580 psig (0 to 40.0 bar)
0 to 1160 psig (0 to 80.0 bar)
70,0 (1015)
Nitrogen Flow, Nm3/h
300
900
600
300
40,0 (580)
1500
1200
1800
EUR
70,0 (1015)
40,0 (580) 200
Inlet Pressure, psig (bar)
60
12
800
8,0
Outlet Pressure, psig
400
40,0 (580)
15,0 (218)
600
4,0
0
400 0
70,0 (1015) 15,0 (218)
15,0 (218)
40,0 (580)
100
70,0 (1015)
40,0 (580)
300
200
70,0 (1015)
400
50
100
40
500
0
30
600
700
1015 (70.0)
1015 (70.0)
20
1015 (70.0)
200
1015 (70.0)
580 (40.0)
Outlet Pressure, bar
RS(H)4 Series
US
10
580 (40.0)
0
0
200
400
600
800
1000
Nitrogen Flow, std ft3/min
2.4
7.0
2.0
0
1.6
60
1.2
0
1200
200
400
600
800
1000
1200
4.0
7.0
1000
JPN
Pressure Regulators, RHPS Series
15
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RS6 Series
Flow Coefficient: 1.95
Maximum Inlet Pressure: RS6—1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 406 psig (0 to 28.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
400
0 to 101 psig (0 to 7.0 bar)
0
200
400
600
800
0 to 203 psig (0 to 14.0 bar)
1000
1200
Inlet Pressure, psig (bar)
24
0 to 406 psig (0 to 28.0 bar)
Outlet Pressure, psig
300
20
1015 (70.0)
1015 (70.0) 580 (40.0)
580 (40.0)
200
580 (40.0)
12
1015 (70.0)
8.0
218 (15.0)
100
218 (15.0)
1015 (70.0)
580 (40.0) 218 (15.0) 580 (40.0)
1015 (70.0)
0
0
100
300
200
16
Outlet Pressure, bar
0 to 43 psig (0 to 3.0 bar)
4.0
0
400
500
600
700
800
600
700
800
Nitrogen Flow, std ft3/min
0
100
200
300
400
500
400
Flow Coefficient: 1.95
Maximum Inlet Pressure: RS6—101524psig (70.0 bar); RSH6—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 1160 psig (0 to 80.0 bar)
300
20
Pressure Control Range
0 to 406 psig (0 to 28.0 bar)
Nitrogen Flow, Nm3/h
16 0
1000
0 to 580 psig (0 to 40.0 bar)
0 to 1160 psig (0 to 80.0 bar)
300
900
600
40,0 (580)
800
8,0
1800
60
70,0 (1015)
0
400 0
50
100
15,0 (218)
70,0 (1015)
40,0 (580) 15,0 (218) 40,0 (580)
70,0 (1015)
200
400
40
1000
800
600
580 (40.0)
200
580 (40.0)
0
200
400
1015 (70.0)
1015 (70.0) 030
1200
1015 (70.0)
1015 (70.0)
600
E
200
15,0 (218)
4,0
600
0
70,0 (1015)
70,0 (1015) 40,0 (580)
40,0 (580)
Inlet Pressure, psig (bar)
12
Outlet Pressure, psig
1500
1200
20
Outlet Pressure, bar
RS(H)6 Series
10
800
1000
800
1000
0
1200
Nitrogen Flow, std ft3/min
2.4
2.0
0
200
400
600
1.6
60
1.2
4.0
7.0 4.0
1200
7.0
1000
JP
16
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RS8 Series
Flow Coefficient: 2.07
Maximum Inlet Pressure: RS8—1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 406 psig (0 to 28.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
400
0 to 101 psig (0 to 7.0 bar)
0
300
600
900
0 to 203 psig (0 to 14.0 bar)
1200
1500
Inlet Pressure, psig (bar)
24
0 to 406 psig (0 to 28.0 bar)
Outlet Pressure, psig
300
20
16
580 (40.0) 1015 (70.0)
200
1015 (70.0)
12
580 (40.0)
8.0
100
218 (15.0)
200
0
US
1015 (70.0)
580 (40.0)
1015 (70.0)
580 (40.0)
218 (15.0)
1015 (70.0)
580 (40.0)
218 (15.0)
0
Outlet Pressure, bar
0 to 43 psig (0 to 3.0 bar)
400
600
4.0
0
1000
800
Nitrogen Flow, std ft3/min
200
0
400
600
1000
400
800
Flow Coefficient: 2.07
Maximum Inlet Pressure: RS8—1015 psig (70.0 bar); RSH8—5800 psig (400 bar)
24
Outlet Pressure Control Range: 0 to 1160 psig (0 to 80.0 bar)
300
20
Pressure Control Range
0 to 580 psig (0 to 40.0 bar)
Nitrogen Flow, Nm3/h
400
16 0
1000
0 to 1160 psig (0 to 80.0 bar)
1200
800
2000
40,0 (580) 70,0 (1015)
70,0 (1015)
Inlet Pressure,
psig (bar)
12
15,0 (218)
600
4,0
0
400 0
60
40,0 (580)
70,0 (1015)
40,0 (580)
15,0 (218)
70,0 (1015)
40,0 (580)
15,0 (218)
600
300
50
100
70,0 (1015)
40
1015 (70.0)
900
1200
030
1015 (70.0)
1500
1015 (70.0)
20
580 (40.0)
200
0
EUR
200
40,0 (580)
800
8,0
Outlet Pressure, psig
1600
1015 (70.0)
580 (40.0)
0
200
400
600
800
Outlet Pressure, bar
RS(H)8 Series
US
10
1000
1200
1000
1200
0
1400
Nitrogen Flow, std ft3/min
2.4
2.0
0
1.6
60
1.2
200
400
600
800
1400
1000
7.0
4.0
7.0
JPN
Pressure Regulators, RHPS Series
17
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
RS4 only
Series
End
Connection
Size
A
B
C
D
E
RS(H)4
1/2 in.
9.06 (230)
2.83 (72.0)
3.07 (78.0)
2.09 (53.0)
3.62 (92.0)
RS(H)6
3/4 in.
9.25 (235)
3.23 (82.0)
3.50 (89.0)
2.20 (56.0)
3.94 (100)
RS(H)8
1 in.
9.25 (235)
3.07 (78.0)
3.50 (89.0)
2.20 (56.0)
3.94 (100)
RS4 only
Panel Mounting
RS(H)4 only
4 mounting
holes, M6
thread
Inlet
2.72
Dimensions, in. (mm)
(69.2)
Configuration
Top
Outlet gauge
connection
Threaded
vent
connection
Gauge
RS6 and 8 only
RS6 and 8 only
A
connection
Outlet gauge
connection
1.10
Outlet (28.0)
Inlet
Outlet
Outlet
Inlet
E
1.10
D
(28.0)
0.67
(17.0)
0.67
B
(17.0)
C
Shown with tubing for clarity; tubing not included.
Ordering Information
Build an RS(H)4, RS(H)6, and RS(H)8 series regulator ordering number by combining the designators in the sequence shown
below.
1
2
4
5
6
7
8
9
RS
FA4A1
- 02- 1 - V V
1 Series
RS =1015 psig (70.0 bar) maximum
inlet pressure
RSH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
4 = 1/2 in. / DN15
6 = 3/4 in. / DN20
8 = 1 in. / DN25
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pressure Control Range
Diaphragm sensing
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 101 psig (0 to 7.0 bar)
3 = 0 to 203 psig (0 to 14.0 bar)
4 = 0 to 406 psig (0 to 28.0 bar)➀
Piston sensing
4 = 0 to 406 psig (0 to 28.0 bar)➁
5 = 0 to 580 psig (0 to 40.0 bar)
6 = 0 to 1160 psig (0 to 80.0 bar)
7 = 0 to 2175 psig (0 to 150 bar)
9 = 0 to 4060 psig (0 to 280 bar)
11 = 0 to 5800 psig (0 to 400 bar)
➀ RS(H)4 series only.
➁ RS(H)6 and RS(H)8 series only.
10
11
V- GN2
9 Diaphragm / Piston O-Rings
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RS series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RSH series
K = PCTFE
P = PEEK
11 Options
A = Antitamper
GN2 = Gauge connection, see below
GN4 = Gauge connection, see below
GN5 = Gauge connection, see below
None = Standard connection, see below
std
Pressure reducing
Gauge Connection
Configuration
Standard
Go
GN2
Gi Go
GN4
Go
GN5
Go Gi
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
N = NACE MR0175/ISO 15156
S= Self-venting (with 1/8 in. NPT)
G93 = ASTM G93 Level C-cleaned
Back Pressure
std
Gi
Gi
Gi Go
Gi Go
18
Pressure Regulators, RHPS Series
General-Purpose, Spring-Loaded Pressure-Reducing Regulators—
RS(H)10, RS(H)15, and RS(H)20 Series
Features
Options
■ Balanced poppet design
■ NACE MR0175/ISO 15156-compliant
■ RS(H)10 and RS(H)15—diaphragm or
piston sensing
RS(H)20—diaphragm sensing only
models
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
RS(H)10
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Sensing Type
RS:
1015 (70.0)
RSH:
RS(H)15
5800 (400)
RS(H)20
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (°C)
(Cv)
in. (mm)
RS:
Diaphragm:
0.55 (14.0)
0 to 290 psig
–4 to 176
3.79
(20.0 bar)
(–20 to 80)
RSH:
0.53 (13.5)
Piston:
See Pressure0 to 3625 psig Temperature
7.30
0.75 (19.0)
(0 to 250 bar)
Ratings,
page 8.
Diaphragm
13
0.98 (25.0)
RS:
290 (20.0)
RSH:
3625 (250)
290 (20.0)
Connections
Inlet and Outlet
Size
1 in.
DN25
1 1/2 in.
DN40
2 in.
DN50
Type
NPT
ISO/BSP
parallel
thread
ASME or
EN flange
Gauge
1/4 in.
NPT or
ISO/BSP
parallel
thread➀
Weight
(Without
Flanges)
lb (kg)
16.5
(7.5)
22.0
(10.0)
39.6
(18.0)
See page 18 for flow data.
➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections.
Materials of Construction
Component
RSH Series Regulator
with Piston Sensing and
Hard Seat Seal
Common Components
3
4
5
6
18
19
20
21
22
11
12
13
14
15
16
17
2 Nut
3 Ball
4 Upper spring guide
5 Spring housing assembly
6 Set spring
7 Cap screw
8 Washer
9 Bottom spring guide
10 Poppet
11 Seat
12 Seat O-ring
13 Poppet housing
14 Body
15 O-rings
16 Poppet spring
17 Body plug
18 Diaphragm
19 Diaphragm plate
20 Retaining ring
21 Body plate
22 Seat seal
23 Piston
24 Piston O-rings
25 Piston plate
26 Seat seal
Wetted lubricant: Silicone-based,
23
24
25
26
Diaphragm
1
2
7
8
9
10
Material / Specification
1 Adjusting screw
Piston
RS Series Regulator
with Diaphragm Sensing and
Soft Seat Seal
A2-70
A2
420 SS (Hardened)
316L SS / A479 or EN10088
316L SS / A479 or EN10088
50CRV4
A4-80
A4
316L SS / A479 or EN10088
431 SS / A276
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
302 SS / A313
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
Commercial stainless steel
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
PEEK or PCTFE
synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Pressure Regulators, RHPS Series
19
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RS10 Series
Flow Coefficient: 3.79
Maximum Inlet Pressure: RS10—1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 406 psig (0 to 28.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 43 psig (0 to 3.0 bar)
300
0 to 145 psig (0 to 10.0 bar)
0
300
600
900
1200
1500
1800
20
0 to 290 psig (0 to 20.0 bar)
Inlet Pressure, psig (bar)
0 to 580 psig (0 to 40.0 bar)
1015 (70.0)
200
15
580 (40.0)
150
1015 (70.0)
580 (40.0)
218 (15.0)
10
1015 (70.0)
580 (40.0)
218 (15.0)
100
1015 (70.0)
580 (40.0)
218 (15.0)
50
5.0
1015 (70.0)
218 (15.0) 580 (40.0)
0
400
200
0
600
Outlet Pressure, bar
Outlet Pressure, psig
250
800
1000
800
1000
0
1200
Nitrogen Flow, std ft3/min
RS15 Series and RS20 Series
For flow curve information, contact your authorized Swagelok representative.
0
200
400
600
1200
300
20
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
RS(H)10
End
Connection
Size
1 in.
15
A
B
250
70,0 (1015)
Dimensions, in. (mm)
C
D
E
F
E
10.5 (266) 3.54 (90.0) 3.07 (78.0) 2.28 (58.0) 1.97 (50.0) 1.77 (45.0) 4.53 (115)
10
10.8 (275) 4.53 (115)
3.78 (96.0) 2.44 (62.0) 2.01 (51.0) 15,0
1.77 (218)
(45.0) 4.53 (115) 70,0 (1015)
40,0 (580)
RS(H)20
2 in.
11.3 (288) 5.51 (140) 3.93 (100) 2.44 (62.0) 1.85 (47.0) 2.56 (65.0) 6.30 (160)
70,0 (1015)
40,0 (580)
15,0 (218)
70,0 (1015)
5,0
40,0 (580)
15,0 (218)
70,0 (1015)
15,0 (218) 40,0 (580)
0
Configuration
Gauge Connection
0
600
900
1500
300
5.51 1200
Top
RS(H)15
200
40,0 (580)
G
150
1.97
1 1/2 in.
(140)
Inlet gauge
connection
Outlet gauge
connection
Inlet
Outlet
(50.0)
100
50
0
G
1800
RS(H)20
only
A
F
Inlet
Outlet
Only one gauge with a
50 mm (2 in.) or larger
dial size fits directly into
the body.
2 gauge
connections
2.0
D
E
B
Shown with tubing for clarity; tubing not included.
1.5
1.0
1.5
C
7.0
4.0
7.0
4.0
JP
20
Pressure Regulators, RHPS Series
Ordering Information
Build an RS(H)10, RS(H)15, and RS(H)20 series regulator ordering number by combining the designators in the sequence shown
below.
1
2
4
5
6
7
8
9
RSFA 10 A 1 - 02- 1 - V V
1 Series
RS =1015 psig (70.0 bar) maximum
inlet pressure
RSH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
10 = 1 in. / DN25
15 = 1 1/2 in. / DN40
20 = 2 in. / DN50
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pressure Control Range
Diaphragm sensing
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 72 psig (0 to 5.0 bar)
3 = 0 to 145 psig (0 to 10.0 bar)
4 = 0 to 290 psig (0 to 20.0 bar)
Piston sensing
5 = 0 to 580 psig (0 to 40.0 bar)➀
6 = 0 to 1450 psig (0 to 100 bar)➀
7 = 0 to 2610 psig (0 to 180 bar)➀
8 = 0 to 3625 psig (0 to 250 bar)➀
➀ RS(H)10 and RS(H)15 series only.
10
11
V- G93
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Diaphragm / Piston O-Rings
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RS series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RSH series
K = PCTFE
P = PEEK
11 Options
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
21
High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators—
LRS(H)4 Series
Features
■ Panel mounting—no disassembly
required
■ Diaphragm sensing
■ Large diaphragm for higher accuracy
Options
■ Diaphragm materials: PTFE and
■ External feedback
316L SS for most pressure control
ranges
■ Bottom mounting
■ Low torque minimizes stem wear
■ Nonventing
■ Cartridge poppet assembly in LRSH4
■ Filter, 25 μm
■ NACE MR0175/ISO 15156-compliant
models
■ Self-venting
■ Special cleaning to ASTM G93 Level C
for ease of service
Technical Data
Series
Maximum
Inlet Pressure
psig (bar)
LRS4
507 (35.0)
Maximum
Outlet Control
Pressure
psig (bar)
Temperature
Range
°F (°C)
–4 to 176
Flow
Coefficient
(Cv)
(–20 to 80)
290 (20.0)
LRSH4
Sensing
Type
5800 (400)
Diaphragm See PressureTemperature
Ratings,
page 8.
0.73
Seat
Diameter
in. (mm)
Inlet and
Outlet
Connections
0.23
(6.0)
1/2 in. NPT
0.10
0.087
(2.2)
Gauge / Vent
Connections
Weight
lb (kg)
Gauge:
1/4 in. NPT
Vent:
1/8 in. NPT
5.7 (2.6)
See pages 22 to 23 for flow data.
Materials of Construction
Component
1 Knob assembly with
adjusting screw, nuts
LRS Series Regulator with Soft Seat Seal
2 Spring housing cover
1
3 Spring housing
Material / Specification
Red ABS with A2-70
431 SS / A276
316L SS / A479 or EN10088
4 C-ring
2
3
4
5
6
7
8
A2
5 Spring guide
316L SS / A479 or EN10088
6 Set spring
50CRV4
7 Cap screw
A4-80
8 Washer
A2
9 Bottom spring guide
10 Clamp ring
11 Diaphragm
9
316L SS / A479 or EN10088
PTFE or 316L SS
12 Diaphragm screw
10
11
12
13
Soft Seat Seal
Hard Seat Seal
Standard in LRS4
Standard in LRSH4
(cartridge design)
13 Body
316L SS / A479 or EN10088
14 Poppet
15 Seat retainer
16 O-ring
17 Seat
EPDM, FKM, or FFKM
LRS
LRSH
18 Seat seal (LRS only)
14
15
16
17
18
19
20
17
14
19
20
16
15
21
22
19 Poppet spring
316L SS / A479 or EN10088
PCTFE or PEEK
EPDM, FKM, or FFKM
302 SS / A313
20 Poppet housing
21 Fluid case
316L SS / A479 or EN10088
22 Cartridge plug
Wetted lubricants: Silicone-based, synthetic hydrocarbonbased
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
22
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
LRS4 Series
Flow Coefficient: 0.73
Maximum Inlet Pressure: LRS4—507 psig (35.0 bar)
Outlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 43 psig (0 to 3.0 bar)
300
0 to 145 psig (0 to 10.0 bar)
0
75
150
225
300
375
450
20
0 to 290 psig (0 to 20.0 bar)
Inlet Pressure, psig (bar)
15
200
218 (15.0)
507 (35.0)
150
10
218 (15.0)
362 (25.0)
100
130 (9.0)
50
5.0
362 (25.0)
507 (35.0)
507 (35.0)
100
50
0
362 (25.0)
US
507 (35.0)
130 (9.0)
0
507 (35.0)
Outlet Pressure, bar
Outlet Pressure, psig
250
150
200
250
300
200
250
300
0
Nitrogen Flow, std ft3/min
100
150
Flow Coefficient: 0.73
20
Maximum Inlet Pressure: LRS4—507 psig (35.0 bar)
Outlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
250
15
Comparative Flow
External Feedback
30
Standard
0
20
Nitrogen Flow, Nm3/h
15,0 (218)
40
60
200
80
100
10
Outlet Pressure, psig
120
35,0 (507)140
15,0 (218)
25,0 (362)
(25.0)
362(507)
35,0
9,0 (130)
0
75
43 (3.0)
35,0 (507)
150
50
35,0 (507)
35,0 (507)
225
130 (9.0)
130 (9.0)
300
362 (25.0)
375
1.0
0
450
362 (25.0)
10
43 (3.0)
43 (3.0)
5.0
362 (25.0)
US
0.5
130 (9.0)
130 (9.0)
0
2.0
100
1.5
25,0 (362)
9,0 (130)
43 (3.0)25,0 (362)
15
0
EUR
2.0
150
Inlet Pressure, psig (bar)
25
5,0
20
300
Outlet Pressure, bar
LRS4 Series with Optional External
Feedback
0
50
0
15
30
45
60
75
60
75
90
0
Nitrogen Flow, std ft3/min
1.5
0
2,0
15
30
45
1.5
90
3.5
30
1.0
25
JPN
Pressure Regulators, RHPS Series
23
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
LRS4 Series with Optional 316L SS Diaphragm
Flow Coefficient: 0.73
Maximum Inlet Pressure: LRS4—507 psig (35.0 bar)
Outlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
Comparative Flow
Nitrogen Flow, Nm3/h
316L SS Diaphragm
30
Standard
0
20
40
60
80
100
120
140
2.0
Inlet Pressure, psig (bar)
1.5
20
15
43 (3.0)
43 (3.0)
362 (25.0)
130 (9.0)
130 (9.0)
10
130 (9.0)
130 (9.0)
43 (3.0)
30
15
0
362 (25.0)
0.5
43 (3.0)
5.0
0
1.0
Outlet Pressure, bar
Outlet Pressure, psig
25
362 (25.0)
362 (25.0)
45
60
75
90
60
75
90
0
Nitrogen Flow, std ft3/min
0
15
30
45
Flow Coefficient: 0.10
2,0
Maximum Inlet Pressure: LRSH4—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
25
1,5
Pressure Control Range
0 to 130 psig (0 to 9.0 bar)
250
0 to 290 psig (0 to 20.0 bar)
Nitrogen Flow, Nm3/h
0
40
1,0
Inlet Pressure,
9,0 (103) psig (bar)
9,0 (130)
25,0 (362)
2900 (200)
Outlet Pressure, psig
20
40
9,0 (130)
60
5,0
2900 (200)
80
1450 (100)
100
8.0
0
120
140
2900 (200)
4.0
50
1450 (100)
0
E
10
12
25,0 (362)
9,0 (130) 25,0 (362)
3,0(100)
(43)
1450
0
100 0
200
160
15
25,0 (362) 16
1450 (100)
3,0 (43)
150
20
120
80
3,0 (43)
3,0 (43)
200
0,5
30
Outlet Pressure, bar
LRSH4 Series
0
25
50
0.20
2900 (200)
75
100
125
150
100
125
150
0
Nitrogen Flow, std ft3/min
0.15
0
16
0.10
25
50
0.3
0.3
75
0.9
2.5
250
J
24
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
2.28
Bottom Mounting
3.52
(58.0)
(72.0)
(30.0)
Threaded
vent
connection
6.54
(166)
0.75
(19.0)
2.48
BAR
1.42
(36.0)
2.83
(72.0)
Gauge
connection
(2)
4 mounting holes, M6 thread,
0.39 (10.0) deep
Shown with tubing for clarity;
tubing not included.
(21.0)
(37.5)
2.95
Outlet
Outlet gauge
connection
Panel hole:
2.40 (61.0)
0.83
1.48
Inlet
Panel Mounting
(63.0)
Outlet
Outlet gauge
connection
2.83
1.18
Inlet
Configuration
Top
(89.5)
2 mounting holes
for M5  20 screws
(75.0)
3.03 (77.0)
Options
Self Venting
Threaded vent connection is below
the panel in self-venting version.
External Feedback
Compensates for pressure
loss (droop).
25 µm Filter
Reduces potential seat
damage; will reduce flow.
LRS4 series
cartridge
LRSH4 series
cartridge
Ordering Information
Build an LRS4 or LRSH4 series regulator ordering number by combining the designators in the sequence shown below.
1
N4 = 1/2 in. female NPT
3 Body Material
02 = 316L SS
3
4
5
6
LRS N4- 02- 1 - V T
1 Series
LRS =507 psig (35 bar) maximum
inlet pressure
LRSH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
2
4 Pressure Control Range
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 130 psig (0 to 9.0 bar)
3 = 0 to 290 psig (0 to 20.0 bar)
5 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
6 Diaphragm
T = PTFE
M =316L SS: only for 0 to 43 psig
(0 to 3.0 bar) and 0 to 130 psig
(0 to 9.0 bar) pressure control
ranges
7
8
V - S
7 Seat Seal Material
LRS series (seat seal)
V = Fluorocarbon FKM
E = EPDM
F = FFKM
LRSH series (seat)
K = PCTFE
P = PEEK
8 Options
EF = External feedback
F = Filter, 25 μm
N = NACE MR0175/ISO 15156
S = Self venting
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
25
High Sensitivity, Spring-Loaded Pressure-Reducing Regulators—
LPRS4, LPRS6, and LPRS8 Series
Features
Options
■ Balanced poppet design
■ Antitamper
■ Diaphragm sensing
■ Gauge connections—choice of
4 configurations
■ Large diaphragm for higher accuracy
■ NACE MR0175/ISO 15156-compliant
■ Suction tube for reduced droop
models
■ Ideal as second-stage regulator
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Sensing
Type
LPRS4
–4 to 176
232
43.0
(16.0)
(3.0)
LPRS8
Diaphragm See PressureTemperature
Ratings,
page 8.
1.95
0.39 (10.0)
Antitamper Option
Size
3/4 in.
DN20
1 in.
DN25
2.07
Materials of Construction
LPRS Series Regulator
with Standard Knob
Inlet and Outlet
1/2 in.
DN15
1.84
(–20 to 80)
LPRS6
Connections
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (°C)
(Cv)
in. (mm)
Material / Specification
2 Ball
16
6 Washer
Commercial stainless steel
316L SS / A479 or EN10088
50CRV4
5 Nut
A2
A4
7 Cap screw
A4-80
8 Washer
2
9 Nut
3
10 Body
11 Seat
A4
A4-80
316L SS / A479 or EN10088
12 Poppet housing
5
17
18
19
20
21
22
21
23
NPT
ISO/BSP
See
parallel
1/4 in. NPT Dimensions,
thread
page 26.
ASME or
EN flange
316L SS / A479 or EN10088
4 Set spring
4
Weight
Component
15
1
Gauge
1 Spring housing assembly
3 Spring guide
6
Type
13 Poppet spring
7
8
9
10
11
12
21
13
14
14 Body plug
302 SS / A313
316L SS / A479 or EN10088
15 Knob assembly with
adjusting screw, nuts
16 Antitamper assembly with
O-ring, adjusting screw
Red ABS with A2-70
316L SS, nitrile, A2-70
17 Diaphragm plate
316L SS / A479 or EN10088
18 Diaphragm
PTFE, EPDM, FKM, or nitrile
19 Diaphragm screw
20 Poppet
316L SS / A479 or EN10088
21 O-rings
22 Seat seal
23 Backup ring
EPDM, FKM, or nitrile
PTFE
Wetted lubricants: Silicone-based, synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
26
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Dimensions, in. (mm)
End Connection
Size and Type
Series
A
B
1/2 in. NPT or ISO/BSP parallel thread
2.83 (72.0)
DN15 PN40—EN 1092
10.2 (260)
1/2 in. ASME class 150—B16.5
11.0 (280)
3/4 in. NPT or ISO/BSP parallel thread
3.23 (82.0)
LPRS4
LPRS6
DN20 PN40—EN 1092
10.2 (258)
10.2 (260)
3/4 in. ASME class 150—B16.5
11.2 (285)
1 in. NPT or ISO/BSP parallel thread
3.07 (78.0)
DN25 PN40—EN 1092
10.2 (260)
1 in. ASME class 150—B16.5
11.5 (291)
LPRS8
Weight
lb (kg)
C
D
3.07 (78.0)
2.09 (53.0)
11.0 (5.0)
14.3 (6.5)
12.1 (5.5)
3.50 (89.0)
2.20 (56.0)
3.50 (89.0)
2.20 (56.0)
17.6 (7.8)
12.1 (5.5)
Regulators with Pipe Connections
18.3 (8.3)
Standard Configuration
Top
2.80
Outlet gauge
connection
(70.0)
Inlet
Outlet
A
7.20
(183)
Outlet
3.80
Inlet
(97.0)
D
Gauge
connection
Shown with tubing for clarity; tubing not included.
C
B
Regulators with Flange Connections
Gauges
Due to the size of the diaphragm enclosure it is not possible
to fit a gauge without an adapter, unless a gauge with 40 mm
(1 1/2 in.) dial and center-back mount is used.
RHPS Gauge Adapter
2.50 (63.0)
B
1.50 (40.0)
40 mm (1 1/2 in.) gauge
dial size with centerback mount
adapter
63 mm (2 1/2 in.) or larger
gauge dial size requires the
use of an adapter.
Pressure Regulators, RHPS Series
27
Flow Table
1/2 in. DN15, 3/4 in. DN20, 1 in. DN25 Connections
Droop
Inlet
Pressure
P1
psig (bar)
Set Pressure
P2
psig (bar)
Pressure
Control
Range
psig (bar)
14.5
1.4 (0.10)
1.4 to 14.5
12.9 (22)
(1.0)
4.3 (0.30)
(0.10 to 1.0)
17.6 (30)
1.4 (0.10)
43
(3.0)
72
(10.0)
232
(16.0)
12.9 (22)
23.5 (40)
(0.10 to 1.0)
35.3 (60)
4.3 to 43
29 (2.0)
145
47.0 (80)➀
1.4 to 14.5
11 (0.80)
4.3 (0.30)
1.4 to 14.5
23.5 (40)
11 (0.80)
(0.10 to 1.0)
35.3 (60)
4.3 to 43
(15.0 bar)
2900 psig
14 psig
(200 bar)
(1.0 bar)
76.5 (130)➀
(0.30 to 3.0)
4.3 (0.30)
1.4 to 14.5
23.5 (40)
11 (0.80)
(0.10 to 1.0)
35.3 (60)
4.3 to 43
29 (2.0)
217 psig
76.5 (130)➀
(0.30 to 3.0)
29 (2.0)
Typical 2-Stage Reduction
for improved set-pressure control
35.3 (60)
4.3 to 43
4.3 (0.30)
If the flows given in the table are exceeded, the set pressure
P2 may rise above the original setting.
23.5 (40)
(0.30 to 3.0)
1.4 (0.10)
Flow
12.9 (22)
(0.10 to 1.0)
11 (0.80)
29 (2.0)
(5.0)
(Nm3/h)
1.4 to 14.5
4.3 (0.30)
Due to the working of the suction tube, LPRS series
regulators show little or no droop.
Flow
std ft3/min
76.5 (130)➀
(0.30 to 3.0)
For flow curve information, contact your authorized Swagelok
representative.
➀ Droop is approximately 15 %.
Ordering Information
Build an LPRS4, LPRS6, and LPRS8 series regulator ordering number by combining the designators in the sequence shown
below.
1
2
3
4
5
6
7
8
9
LPRS
FA4A1
- 02- 2 - V V
1 Series
LPRS =232 psig (16.0 bar)
maximum inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
4 = 1/2 in. / DN15
6 = 3/4 in. / DN20
8 = 1 in. / DN25
4 Pressure Class
Omit designator if flanges are not
ordered.
A = ASME class 150
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
6 Body Material
02 = 316L SS
7 Pressure Control Range
2 = 1.4 to 14.5 psig (0.10 to 1.0 bar)
3 = 4.3 to 43 psig (0.30 to 3.0 bar)
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Diaphragm
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10
11
V - GN2
10 Seat Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
11 Options
A = Antitamper
GN2 = Gauge connection, see below
GN4 = Gauge connection, see below
GN5 = Gauge connection, see below
None = Standard connection, see below
std
Pressure reducing
Gauge Connection
Configuration
Standard
Go
GN2
Gi Go
GN4
Go
GN5
Go Gi
N = NACE MR0175/ISO 15156
S = Self-venting (with 1/8 in. NPT)
G93 = ASTM G93 Level C-cleaned
Back Pressure
std
Gi
Gi
Gi Go
Gi Go
28
Pressure Regulators, RHPS Series
High-Sensitivity, Spring-Loaded Pressure-Reducing Regulators—
LPRS10 and LPRS15 Series
Features
Options
■ Balanced poppet design
■ Antitamper
■ Diaphragm sensing
■ NACE MR0175/ISO 15156-compliant
models
■ High flow and high accuracy
■ Special cleaning to ASTM G93 Level C
■ Suction tube for reduced droop
■ Ideal as second-stage regulator
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Sensing
Type
–4 to 176
LPRS10
(–20 to 80)
232
43.0
(16.0)
(3.0)
LPRS15
Connections
Temperature
Flow
Seat
Range
Coefficient Diameter
°C (°F)
(Cv)
in. (mm)
Diaphragm See PressureTemperature
Ratings,
page 8.
Inlet and Outlet
Size
3.79
0.55 (14.0)
1 in.
DN25
7.30
0.75 (19.0)
1 1/2 in.
DN40
Type
Gauge
NPT
ISO/BSP
parallel
thread
ASME or EN
flange
1/4 in.
NPT or
ISO/BSP
parallel
thread➀
Weight
(Without
Flanges)
lb (kg)
17.6
(8.0)
22.0
(10.0)
See pages 29 and 29 for flow data.
➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections.
Materials of Construction
Component
Material / Specification
1 Adjusting screw
LPRS10 Series Regulator
1
A2-70
2 Nut
A2
3 Ball
Commercial stainless steel
4 Spring guide
316L SS / A479 or EN10088
5 Set spring
2
6 Spring housing assembly
50CRV4
316L SS / A479 or EN10088
7 Nut
A2
8 Washer
9 Diaphragm plate
5
3
10 Cap screw
4
11 Washer
A2
12 Nut
A2
6
13 Diaphragm
14 Diaphragm screw
9
15
16
17
21
22
23
18
25
26
A4
316L SS / A479 or EN10088
7
8
15 Bottom cover
16 Retaining ring
10
11
12
13
14
18
20
18
19
24
18
27
17 Body plate
A4-80
PTFE, FKM, EPDM, or nitrile
316L SS / A479 or EN10088
Commercial stainless steel
316L SS / A479 or EN10088
18 O-rings
EPDM, FKM, or nitrile
19 Seat seal
20 Suction tube
21 Poppet
22 Seat
316L SS / A479 or EN10088
23 Poppet housing
24 Body
25 Poppet spring
26 Body plug
302 SS / A313
316L SS / A479 or EN10088
27 Backup ring
PTFE
Wetted lubricant: Silicone-based, synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Pressure Regulators, RHPS Series
29
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
LPRS10 Series
Flow Coefficient: 3.79
Maximum Inlet Pressure: LPRS10—232 psig (16.0 bar)
Outlet Pressure Control Range: 1.4 to 43 psig (0.10 to 3.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
1.4 to 14.0 psig (0.10 to 1.0 bar)
50
4.3 to 43 psig (0.30 to 3.0 bar)
0
100
200
300
500
400
600
700
Inlet Pressure, psig (bar)
3.0
2.5
30
218 (15.0)
101 (7.0)
2.0
1.5
20
43 (3.0)
10
43 (3.0)
0
0
101 (7.0)
218 (15.0)
218 (15.0)
43 (3.0)
101 (7.0)
218 (15.0)
43 (3.0) 101 (7.0)
218 (15.0)
101 (7.0)
150
75
225
1.0
Outlet Pressure, bar
Outlet Pressure, psig
40
0.5
300
375
0.0
450
300
375
450
Nitrogen Flow, std ft3/min
75
150
225
Flow Coefficient: 7.3
3,0
Maximum Inlet Pressure: LPRS15—232 psig (16.0 bar)
Outlet Pressure Control Range: 1.42,5
to 43 psig (0.10 to 3.0 bar)
Pressure Control Range
40
50
1,5
4.3 to 43 psig (0.30 to 3.0 bar)
0
200
400
600
3,0 (43)
Outlet Pressure, psig
1,0
40
30
0
0
7,0 (101)
100
200
7,0 (101)
20
10
43 (3.0)
218 (15.0)
3.0
10
2.5
500
218
(15.0)
2.0
0
600
700
1.5
101 (7.0)
43 (3.0)
43 (3.0)
20
101 (7.0)
400
218 (15.0)
101 (7.0)
1.0
218 (15.0)
101 (7.0)
0.5
43 (3.0) 101 (7.0)
0
0
100
200
E
1000
218 (15.0)
15,0 (218)
300
30
Inlet Pressure, psig (bar)
15,0 (218)
15,0 (218)
7,0 (101)
3,0 (43)
15,0 (218)
3,0 (43)
800
7,0 (101)
3,0 (43)
0,5
0.30
15,0 (218)
3/h
Nitrogen Flow, Nm
7,0 (101)
2,0
1.4 to 14.0 psig (0.10 to 1.0 bar)
50
Outlet Pressure, bar
0
LPRS15 Series
0.0
300
400
500
600
500
600
700
Nitrogen Flow, std ft3/min
0.25
0.20
0
100
200
300
7.0
400
15.0
700
50
0.15
J
30
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Dimensions, in. (mm)
End Connection
Size and Type
Series
A
B
1 in. NPT or ISO/BSP parallel thread
LPRS10
C
DN25 PN40—EN 1092
10.8 (275) 9.69 (246)
1 in. ASME class 150—B16.5
9.65 (245)
1 1/2 in. NPT or ISO/BSP parallel thread
4.53 (115)
LPRS15
D
DN40 PN40—EN 1092
11.3 (286) 11.0 (280)
1 1/2 in. ASME class 150—B16.5
3.07 (78.0) 2.28 (58.0)
4.69 (119)
3.78 (96.0) 2.44 (62.0)
5.12 (130)
12.4 (314)
Regulators with Pipe Connections
Regulators with Flange Connections
1.96
(50.0)
7.20
A
(183)
Outlet
E
Inlet
D
F
1.38
(35.1)
1.77
B
(45.0)
Inlet gauge
connection
B
C
Configuration
Top
Gauge Connection
Outlet gauge
connection
Only one gauge with a
50 mm (2 in.) or larger
dial size fits directly into
the body.
Inlet
Outlet
Shown with tubing for clarity;
tubing not included.
E
3.54 (90.0)
F
2.00
(50.8)
2.03
(51.6)
Pressure Regulators, RHPS Series
Ordering Information
Build an LPRS10 and LPRS15 series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
LPRSFA 10 A 1 - 02- 2 - V V
1 Series
LPRS =232 psig (16.0 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
10 = 1 in. / DN25
15 = 1 1/2 in. / DN40
4 Pressure Class
Omit designator if flanges are not
ordered.
A = ASME class 150
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
6 Body Material
02 = 316L SS
7 Pressure Control Range
2 = 1.4 to 14.5 psig (0.10 to 1.0 bar)
3 = 4.3 to 43 psig (0.30 to 3.0 bar)
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10
11
V - G93
9 Diaphragm
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
11 Options
A = Antitamper
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
31
32
Pressure Regulators, RHPS Series
Pressure-Reducing, Dome-Loaded and Air-Loaded Regulators—RD and RA Series
These pressure-reducing, dome-loaded and air-loaded
regulators are suitable for most gases and liquids, including
acids and oils. These regulators feature various poppet
designs, a pressure-sensing diaphragm (piston in RD2 series),
and a choice of seat and seal materials to accommodate a
variety of pressure, temperature, and flow conditions.
These regulators are available with a choice of threaded
end connections from 1/4 to 2 in., and with flange end
connections from 1/2 to 4 in.
The RDH series regulators are high-pressure versions of the
RD series regulators, and the LPRD series are low-pressure,
high-accuracy versions of the RD series regulators. The RA
series regulators are air-loaded regulators.
These regulators are available with many options, including a
variety of gauge connection configurations, a pilot regulator
(RD series only), external feedback (RD series only), special
cleaning to ASTM G93 Level C, and NACE MR0175/ISO
15156-compliant models.
Pressure-Temperature Ratings
Features
■ Dome-loaded and air-loaded
pressure control
■ Diaphragm sensing design except
RD2 series
■ 316L stainless steel materials of
construction for corrosion resistance
■ Maximum inlet pressure ratings:
1015 to 5800 psig (70.0 to 400 bar)
■ Outlet pressure control ranges:
Up to 0 to 5800 psig (0 to 400 bar)
Seat Seal /
O-Ring Material PCTFE➀➁
RD2
RDH6DP
RDH6, 8
RDH10, 15
RDH20, 25
Series RA4, 6, 8
Temperature
°F (°C)
PEEK➀➁
➀
➀➁ Fluorocarbon FKM ,
PEEK➀➁ Polyurethane Nitrile, EPDM, FFKM➁
RD2
RDH6DP
RDH6, 8
RDH10, 15
RDH20, 25
RA4, 6, 8
RDH40
RDH30
Maximum Inlet Pressure / Working
psig (bar)
RD6DP
RD6, 8
RD10, 15
RD20, 25
RD30, 40
Pressure
LPRD20
LPRD25
LPRD30
LPRD40
5800 (400) 4060 (280)
1015 (70.0)
232 (16.0)
–4 (–20) to 95(35) 5800 (400)
149
(65) 3987 (275)
4060 (280)
176
(80) 1812 (125)
➀Regulators (including high-pressure models) built with fluorocarbon FKM seat seals, diaphragms, or
O-ring seals, are limited to 5°F (–15°C).
➁ Regulators (including high-pressure models) built with FFKM seat seals, diaphragms, or O-ring seals,
are limited to 14°F (–10°C).
RD2
Technical Data—Performance
RD(H)6, 8
Series
RD(H)10, 15
RD(H)6DP
RA4, 6, 8
RD(H)20, 25
RD(H)30, 40
Maximum
Inlet Pressure
psig (bar)
Maximum Outlet
Control Pressure
psig (bar)
Flow
Coefficient
(Cv )
Sensing
Type
Flow
Data
on Page
0.05
Piston
35
1.95
Diaphragm
—
1.95
Diaphragm
39
2.07
Diaphragm
—
3.79
Diaphragm
45
7.30
Diaphragm
46,
47
13
Diaphragm
50,
51
21
Diaphragm
—
36
Diaphragm
—
73
Diaphragm
—
Diaphragm
—
Diaphragm
—
RD2
5800 (400)
5800 (400)
RD6DP
1015 (70.0)
1015 (70.0)
RDH6DP
5800 (400)
3335 (230)
RD6
1015 (70.0)
1015 (70.0)
RDH6
5800 (400)
5800 (400)
RD8
1015 (70.0)
1015 (70.0)
RDH8
5800 (400)
5800 (400)
RD10
1015 (70.0)
1015 (70.0)
RDH10
5800 (400)
3625 (250)
RD15
1015 (70.0)
1015 (70.0)
RDH15
5800 (400)
3625 (250)
RD20
1015 (70.0)
1015 (70.0)
RDH20
5800 (400)
2900 (200)
RD25
1015 (70.0)
1015 (70.0)
RDH25
4060 (280)
2900 (200)
RD30
1015 (70.0)
1015 (70.0)
RDH30
4060 (280)
2900 (200)
RD40
1015 (70.0)
1015 (70.0)
RDH40
4060 (280)
2900 (200)
LPRD20
LPRD25
LPRD30
13
232 (16.0)
29 (2.0)
LPRD40
21
36
73
RA4
RA6
LPRD25, 30, 40
RA8
5800 (400)
5800 (400)
1.84
Pressure Regulators, RHPS Series
33
Pressure-Reducing, Dome-Loaded and Air-Loaded Regulators—RD and RA Series
RD Series Pressure-Reducing,
Dome-Loaded Regulator
Dome-loading
mechanism
Diaphragm sensing
mechanism
Soft seat seal design
for low-pressure
applications
Hard seat seal design
for high-pressure
applications
Inlet
Outlet
Technical Data—Design
Series
RD2
RD6DP
RDH6DP
RD6
RDH6
RD8
RDH8
Inlet and Outlet Connections
Gauge Connection
Dome Connection
Weight
(Without
Flanges)
lb (kg)
0.087(2.2)
1/4 in. NPT
1/4 in. NPT
1/8 in. NPT
3.1 (1.4)
34
0.39 (10.0)
3/4 in. NPT, ISO/BSP parallel thread,
EN or ASME flanges
1/4 in. NPT
1/4 in. NPT
10.6 (4.8)
41
0.39 (10.0)
3/4 in. NPT, ISO/BSP parallel thread,
EN or ASME flanges
1/4 in. NPT
1/4 in. ISO/BSP
parallel thread
8.8 (4.0)
38
0.39 (10.0)
1 in. NPT, ISO/BSP parallel thread, EN
or ASME flanges
1/4 in. NPT
1/4 in. ISO/BSP
parallel thread
8.8 (4.0)
38
1 in. NPT, ISO/BSP parallel thread, EN
or ASME flanges
1/4 in. NPT or ISO/BSP
parallel thread
1/4 in. ISO/BSP
parallel thread
17.6 (6.0)
43
0.75 (19.0)
1 1/2 in. NPT, ISO/BSP parallel thread,
EN or ASME flanges
1/4 in. NPT or ISO/BSP
parallel thread
1/4 in. ISO/BSP
parallel thread
19.8 (9.0)
43
0.98 (25.0)
2 in. NPT, ISO/BSP parallel thread, EN Use P1 gauge connections
or ASME flanges
on pilot regulator
1/4 in. ISO/BSP
parallel thread
44.0 (20)
49
Seat
Diameter
in. (mm)
RD10
0.55 (14.0)
RDH10
0.53 (13.5)
RD15
RDH15
RD20
RDH20
RD25
RDH25
RD30
RDH30
RD40
RDH40
1.25 (32.0)
2 1/2 in. EN or ASME flanges
Use P1 gauge connections
on pilot regulator
1/4 in. ISO/BSP
parallel thread
88.0 (40)
49
1.65 (42.0)
3 in. EN or ASME flanges
Use P1 gauge connections
on pilot regulator
1/4 in. ISO/BSP
parallel thread
136 (62)
53
2.36 (60.0)
4 in. EN or ASME flanges
Use P1 gauge connections
on pilot regulator
1/4 in. ISO/BSP
parallel thread
183 (83)
53
Inlet and outlet gauges
included
1/4 in. ISO/BSP
parallel thread
Varies with
model
and end
connection
LPRD20
0.98 (25.0)
2 in. EN or ASME flanges
LPRD25
1.25 (32.0)
2 1/2 in. EN or ASME flanges
LPRD30
1.65 (42.0)
3 in. EN or ASME flanges
LPRD40
2.36 (60.0)
4 in. EN or ASME flanges
0.39 (10.0)
1/2 in. NPT, ISO/BSP parallel thread,
EN or ASME flanges
3/4 in. NPT, ISO/BSP parallel thread,
EN or ASME flanges
1 in. ISO/BSP parallel thread,
EN or ASME flanges
RA4
RA6
RA8
More
Information
on Page
55
55
55
55
12.5 (5.7)
1/4 in. NPT
1/4 in. ISO/BSP
parallel thread
13.6 (6.2)
13.6 (6.2)
57
34
Pressure Regulators, RHPS Series
Compact, General-Purpose Dome-Loaded Pressure-Reducing Regulators—
RD2 Series
Features
Options
■ Piston sensing
■ No filter—for liquid applications
■ Integral 25 μm filter
■ NACE MR0175/ISO 15156-compliant
■ Cartridge poppet assembly for ease
of service
models (nonventing and no-filter
models only)
■ Special cleaning to ASTM G93 Level C
■ Bottom mounting
■ Panel mounting kit sold separately—
no disassembly required
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Sensing
Type
Temperature
Flow
Seat
Inlet and
Gauge /
Range
Coefficient Diameter
Outlet
Dome
°F (°C)
(Cv)
in. (mm) Connections Connection
–4 to 176
(–20 to 80)
RD2
5800
5800
(400)
(400)
Piston
See PressureTemperature
Ratings,
page 32.
0.05
0.087
(2.2)
1/4 in. NPT
Gauge:
1/4 in. NPT
Dome:
1/8 in. NPT
Weight
lb (kg)
3.1 (1.4)
Materials of Construction
1
Component
2
1 Dome plug
3
2 Dome
3 Dome plug O-ring
Material / Specification
316L SS / A479 or EN10088
FKM, EPDM, nitrile, or FFKM
4 Non-relieving plug
5 Piston
316L SS / A479 or EN10088
6 Piston plate
4
5
7 Piston O-rings
7
6
8
9
10
11
12
13
14
15
8 Poppet
431 SS / A276 or EN10088
9 Poppet housing
316L SS / A479 or EN10088
10 O-rings
7
10
11 Seat
12 Seat retainer
13 Poppet spring
FKM, EPDM, nitrile, or FFKM
PEEK or PCFTE
316L SS / A479 or EN10088
302 SS / A313
14 Filter
15 Plug
16
FKM, EPDM, nitrile, or FFKM
16 Body
316L SS
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Pressure Regulators, RHPS Series
35
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RD2 Series
Flow Coefficient: 0.05
Maximum Inlet Pressure: RD2—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 5800 psig (0 to 400 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
400
0
50
100
150
200
250
300
25
350
580 (40.0)
1015 (70.0)
Outlet Pressure, psig
300
20
2900 (200)
250
15
200
5800 (400)
150
10
580 (40.0)
100
50
0
5.0
1015 (70.0)
2900 (200), 5800 (400)
580 (40.0)
0
2900 (200)
5800 (400)
1015 (70.0)
Outlet Pressure, bar
0 to 5800 psig (0 to 400 bar)
40
80
120
160
200
160
200
Nitrogen Flow, std ft3/min
0
40
80
120
Flow Coefficient: 0.05
25 psig (400 bar)
Maximum Inlet Pressure: RD2—5800
Outlet Pressure Control Range: 0 to 5800 psig
to 400 bar)
40,0(0(580)
350
70,0 (1015)
300
20
Pressure Control Range
0 to 5800 psig (0 to 400 bar)
3000
15
Nitrogen Flow, Nm3/h
0
75
150
225
200 (2900)
300
375
250
450
400 (5800)
Outlet Pressure, psig
E
200
200
2500
10
150
2900 (200)
200 (2900)
400 (5800)
40,0 (580) 70,0 (1015)
2000
5,0
1500
0
400
40,0 (580)
0
150
100
5800 (400)
50
70,0 (1015)
200 (2900), 400 (5800)
50
100
100
0
150
2900 (200)
1000
200
250
300
5800 (400)
Outlet Pressure, bar
RD2 Series
50
500
0
2.5
2900 (200)
1015 (70.0)
580 (40.0) 1015 (70.0)
0
100
50
4.0
7.0
5800 (400)
2900 (200)
150
200
5800 (400)
250
300
0
Nitrogen Flow, std ft3/min
2.0
20.0
1.5
200
0
50
100
150
200
250
40.0
300
3000
1.0
2500
JP
36
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RD2 Series
Flow Coefficient: 0.05
Maximum Inlet Pressure: RD2—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 5800 psig (0 to 400 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 5800 psig (0 to 400 bar)
6000
0
75
150
225
300
375
450
400
300
4000
3000
200
5800 (400)
2000
5800 (400)
2900 (200)
Outlet Pressure, bar
Outlet Pressure, psig
5000
USA
100
1000
0
0
50
100
150
200
250
300
200
250
300
0
Nitrogen Flow, std ft3/min
0
50
100
150
400
6000
5000
300
4000
200
3000
400 (5800)
EUR
2000
100
400 (5800)
200 (2900)
1000
0
0
0
75
150
225
300
375
450
40
30
20
JPN
40.0
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Configuration
Top
2.16
(55.0)
1.31
(33.3)
Inlet gauge
connection
4.21
Outlet gauge
connection
Inlet
(107)
Outlet
3.78
Dome
connection
(96.0)
Inlet
2 gauge
connections
Outlet
Dome
2.16
Shown with tubing for clarity; tubing not included.
0.67
(55.0)
(17.0)
Panel Mounting Kit
1.26
Inlet
(32.0)
0.87
(22.0)
No disassembly required when using panel mount kit.
Panel mounting kit ordering number: RS2-P-02
Outlet
2 mounting holes M5,
0.20 (5.0) deep
2.76
(70.0)
36
2.
2 holes,
0.22 (5.5)
0)
0.
(6
A
A
3.13 (79.5)
2.36 (60.0)
Panel hole
Panel ring
Ordering Information
Build an RD2 series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
RD N2- 02 - V
1 Series
RD =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
N2 = 1/4 in. female NPT
3 Body Material
02 = 316L SS
4 Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
5 Piston Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
5
6
7
V
K - L
6 Seat Material
K = PCTFE
P = PEEK
7 Options
L = No filter
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
37
38
Pressure Regulators, RHPS Series
General-Purpose, Dome-Loaded Pressure-Reducing Regulators—
RD(H)6 and RD(H)8 Series
Features
Options
■ Balanced poppet design
■ Pilot regulator (not shown)
■ Diaphragm sensing
■ Gauge connections—choice of 4
configurations
■ Dome-to-outlet pressure ratio
■ NACE MR0175/ISO 15156-compliant
approximately 1:1
models
■ Outlet gauge connection:
■ Special cleaning to ASTM G93 Level C
1/4 in. female NPT
Technical Data
Series
RD6
RDH6
RD8
RDH8
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Sensing
Type
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (C°)
(Cv)
in. (mm)
RD:
–4 to 176
RD:
1015 (70.0)
(–20 to 80)
1015 (70.0)
RDH:
See
PressureDiaphragm
RDH:
5800 (400)
Temperature
5800 (400) (2537 [175] with
Ratings,
pilot regulator)
page 32.
Inlet and
Outlet Connections
3/4 in. NPT, ISO/BSP
parallel thread, EN or
ASME flange
1.95
0.39
(10.0)
2.07
Weight
(Without
Gauge / Dome Flanges)
Connection
lb (kg)
Gauge:
1/4 in. NPT;
Dome:
1/4 in.
ISO/BSP
parallel thread
1 in. NPT, ISO/BSP
parallel thread, EN or
ASME flange
8.8 (4.0)
See page 39 for RD(H)6 flow data.
Materials of Construction
RD6 Series Regulator
with Soft Seat Seal
Component
RDH6 Series Regulator
with Hard Seat Seal
1
2
3
1 Dome
2 Cap screw
17
18
19
4
13
5
6
14
15
16
8
9
10
11
12
A4-80
3 Washer
A4
4 Dome plate
316L SS / A479 or EN10088
5 Diaphragm
EPDM, FKM, or nitrile
6 Diaphragm plate
316L SS / A479 or EN10088
7 O-ring
20
EPDM, FKM, or nitrile
8 Backup ring
PTFE
9 Plug O-ring
EPDM, FKM, or nitrile
10 Body
7
Material / Specification
316L SS / A479 or EN10088
316L SS / A479 or EN10088
11 Poppet spring
12 Body plug
302 SS / A313
316L SS / A479 or EN10088
RD Series Only Components
13 Poppet
14 Seat
15 Seat seal
16 Poppet housing
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS/ A479 or EN10088
RDH Series Only Components
17 Poppet
18 Seat
19 Seat seal
413 SS / A276
316L SS/ A479 or EN10088
PCTFE or PEEK
20 Backup ring
PTFE
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Pressure Regulators, RHPS Series
39
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RDH6 Series
Flow Coefficient: 1.95
Maximum Inlet Pressure: RDH6—5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 1450 psig (0 to 100 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 362 psig (0 to 25.0 bar)
1200
0 to 1450 psig (0 to 100 bar)
0
500
1000
1500
2000
2500
3000
80
Inlet Pressure, psig (bar)
60
720
40
2175 (150)
480
1015 (70.0)
580 (40.0)
20
1015 (70.0)
240
580 (40.0)
0
2175 (150)
2175 (150)
1015 (70.0) 2175 (150)
400
0
Outlet Pressure, bar
Outlet Pressure, psig
960
800
1200
0
2000
1600
Nitrogen Flow, std ft3/min
RDH6 Series
400
0
Flow Coefficient: 1.95
Maximum Inlet Pressure: RDH6—5800
80 psig (400 bar)
Outlet Pressure Control Range: 0 to 362 psig (0 to 25.0 bar)
300
0 to 362 psig (0 to 25.0 bar)
960
0
600
400
200
800
1200
1000
1400
720
20
200
20
40,0 (580)
480
15
150 (2175)
70,0 (1015)
150 (2175)
70,0 (1015)
150
70,0 (1015)
40,0 (580)
0
100 0
218 (15.0)
500
1000
580 (40.0)
1500
240
150 (2175)580 (40.0)
2000
1015 (70.0)
10
1015 (70.0)
0
2175 (150)
2500
3000
2175 (150)
218 (15.0)
5.0
580 (40.0), 1015 (70.0)
218 (15.0)
2175 (150)
218 (15.0), 580 (40.0)
1015 (70.0), 2175 (150)
50
0
8.0
E
Inlet Pressure, psig150
(bar)
(2175)
40
250
Outlet Pressure, psig
2000
1200
Nitrogen Flow, Nm3/h
60
0 to 145 psig (0 to 10.0 bar)
1600
1200
0
180
360
Outlet Pressure, bar
Pressure Control Range
800
540
720
900
720
900
0
Nitrogen Flow, std ft3/min
RD(H)8 Series
For flow curve information, contact your authorized Swagelok representative.
6.0
0
180
360
540
20
15.0
4.0
15.0
300
250
JP
40
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
End
Connection
Size
RD(H)6
3/4 in.
RD(H)8
1 in.
Dimensions, in. (mm)
A
B
3.22 (82.0)
5.12 (130)
3.07 (78.0)
C
D
3.50 (89.0)
2.16 (55.0)
Standard Configuration
Top
Outlet gauge
connection
Dome
Gauge
connection
Outlet
A
Inlet
D
Inlet
B
Outlet
C
Shown with tubing for clarity; tubing not included.
Ordering Information
Build an RD(H)6 and RD(H)8 series regulator ordering number by combining the designators in the sequence shown below.
1
2
4
5
6
7
8
9
RD
FA6A1
- 02- X - V V
1 Series
RD =1015 psig (70.0 bar) maximum
inlet pressure
RDH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
6 = 3/4 in. / DN20
8 = 1 in. / DN25
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pressure Control Range
X = No pilot regulator, standard
RD series with RS2 series pilot regulator
3 = 0 to 1015 psig (0 to 70.0 bar)
RDH series with RS2 series pilot regulator
4 = 0 to 145 psig (0 to 10.0 bar)
5 = 0 to 362 psig (0 to 25.0 bar)
6 = 0 to 1450 psig (0 to 100 bar)
7 = 0 to 2537 psig (0 to 175 bar)
For higher pressure control ranges with a pilot
regulator, contact your authorized Swagelok
representative for information.
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10
11
V- GN2
9 Diaphragm / Piston O-Rings
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RD series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RDH series
K = PCTFE
P = PEEK
11 Options
A = Antitamper
GN2 = Gauge connection, see below
GN4 = Gauge connection, see below
GN5 = Gauge connection, see below
None = Standard connection, see below
std
Pressure reducing
Gauge Connection
Configuration
Standard
Go
GN2
Gi Go
GN4
Go
GN5
Go Gi
Standard (GN1) and GN4 only available with no pilot.
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Back Pressure
std
Gi
Gi
Gi Go
Gi Go
Pressure Regulators, RHPS Series
41
Differential Pressure, Dome-Loaded Pressure Reducing Regulators—
RD(H)6DP Series
Features
Options
■ Balanced poppet design
■ Antitamper
■ Diaphragm sensing
■ Gauge connection—choice of 4
configurations
■ Adjustable bias
■ NACE MR0175/ISO 15156-compliant
■ Dome-to-outlet pressure ratio
models
approximately 1:1
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
RD6DP
1015 (70.0)
1015 (70.0)
RDH6DP
5800 (400)
3335 (230)
Weight
Temperature
Flow
Seat
Inlet and
Gauge /
(Without
Sensing
Range
Coefficient Diameter
Outlet
Dome
Flanges)
Type
°F (C°)
(Cv)
in. (mm) Connections Connection
lb (kg)
–4 to 176
3/4 in. NPT,
(–20 to 80)
Gauge:
ISO/BSP
14.5 to
1/4 in. NPT;
0.39
parallel
See
PressureDiaphragm
145
1.95
10.6 (4.8)
(10.0)
thread,
Dome:
(1.0 to 10.0) Temperature
EN
or
ASME
Ratings,
1/4 in. NPT
flange
page 32.
Bias
Range
psig (bar)
Materials of Construction
Component
RD6DP Series Regulator
with Soft Seat Seal
1 Adjustment screw
RDH6DP Series Regulator
with Hard Seat Seal
2 O-ring
3 Dome screw
25
17
18
19
20
Material / Specification
316L SS / A479 or EN10088
EPDM, FKM, nitrile
316L SS / A479 or EN10088
4 Split pin
1
2
3
4
5
6
2
7
8
9
10
11
12
2
13
2
14
2
14
15
16
A2
5 Cap screw
A4-80
6 Washer
24
A4
7 Dome
316L SS / A479 or EN10088
8 Upper spring guide
316L SS / A479 or EN10088
9 Differential spring
50CRV4
10 Lower spring guide
316L SS / A479 or EN10088
11 Diaphragm
12 Diaphragm plate
13 Body
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
14 Backup ring
PTFE
15 Poppet spring
21
16 Body plug
302 SS / A313
316L SS / A479 or EN10088
RD Series Only Components
22
17 Poppet
23
18 Seat
316L SS / A479 or EN10088
19 Seat seal
20 Poppet housing
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
RDH Series Only Components
21 Poppet
22 Seat
23 Seat seal
24 Ball
25 Antitamper cover, opt
431 SS / A276
316L SS / A479 or EN10088
PCTFE or PEEK
Commercial stainless steel
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
42
Pressure Regulators, RHPS Series
Flow Data
For flow curve information, contact your authorized Swagelok representative.
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Standard Configuration
Top
Outlet gauge
connection
Dome
connection
7.31
Outlet gauge
connection
(186)
4.31
Inlet
Outlet
(109)
Outlet
Inlet
2.17
(55.2)
1.61
(41.0)
0.47 (12.0)
1.18 (30.0)
1.75
(44.4)
3.20
(82.0)
Shown with tubing for clarity; tubing not included.
3.50
(89.0)
Ordering Information
Build an RD(H)6DP series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
10
11
RDFA 6A1
- 02- V V V DP2 - GN2
1 Series
RD =1015 psig (70.0 bar) maximum
inlet pressure
RDH =5800 psig (400 bar) maximum
inlet pressure
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
10 Differential Pressure
DP2 = 0 to 43 psig
(0 to 3.0 bar) bias
DP3 = 0 to 145 psig
(0 to 10.0 bar) bias
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
6 Body Material
02 = 316L SS
11 Options
3 Size
6 = 3/4 in. / DN20
4 Pressure Class
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
7 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
A = Antitamper
GN2 = Gauge connection, see below
GN4 = Gauge connection, see below
GN5 = Gauge connection, see below
None = Standard connection, see below
std
8 Diaphragm Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Seat Seal Material
RD series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RDH series
K = PCTFE
P = PEEK
Pressure reducing
Gauge Connection
Configuration
Standard
Go
GN2
Gi Go
GN4
Go
GN5
Go Gi
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Back Pressure
std
Gi
Gi
Gi Go
Gi Go
Gi
Gi
Go Gi
Gi Go
Pressure Regulators, RHPS Series
43
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators—
RD(H)10 and RD(H)15 Series
Features
Options
■ Balanced poppet design
■ External feedback (EF) for improved
■ Diaphragm sensing
performance
■ Integral pilot regulator with dynamic
■ EF to main regulator limited by
standard outlet pressure range
regulation
■ EF to pilot regulator limited to
■ Dome-to-outlet pressure ratio
290 psig (20.0 bar)
approximately 1:1
■ Large dome for improved stability
■ Gauge connections
■ Pilot regulator for improved
■ NACE MR0175/ISO 15156-compliant
models
performance
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Inlet
Pressure
psig (bar)
RD:
1015 (70.0)
(507 [35.0]
with LRS4
pilot regulator)
RD15
RDH:
RDH15
5800 (400)
RD10
RDH10
Maximum
Outlet Control
Pressure
psig (bar)
RD:
1015 (70.0)
RDH:
3625 (250)
Sensing
Type
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (C°)
(Cv)
in. (mm)
–4 to 176
(–20 to 80)
Diaphragm See PressureTemperature
Ratings,
page 32.
3.79
7.30
Inlet and Outlet
Connections
Size
Type
Gauge / Dome
Connection
Weight
(Without
Flanges
and PR)
lb (kg)
Gauge / pilot:
NPT,
ISO/BSP 1/4 in. NPT or 17.6 (8.0)
parallel ISO/BSP parallel
thread➀
thread,
EN or
Dome:
0.75 (19.0) 1 1/2 in. ASME 1/4 in. ISO/BSP 19.8 (9.0)
flange
parallel thread
0.55 (14.0)
0.53 (13.5)
1 in.
See pages 44 to 47 for flow data.
➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections.
Materials of Construction
Component
RDH10 Series Regulator
with Hard Seat Seal
18
16
19
17
1 Dome
RD15 Series Regulator
with Soft Seat Seal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Material / Specification
316L SS / A479 or EN10088
2 Cap screw
A4-80
3 Washer
4 Dome plate
5 Diaphragm
6 Diaphragm plate
7 Retaining ring
A4
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
Commercial stainless steel
8 Body plate
9 Poppet
316L SS / A479 or EN10088
10 Seat
11 O-ring
12 Body
20
13 Poppet housing
16
14 Poppet spring
17
15 Body plug
16 O-ring
17 Plug O-ring
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
302 SS / A313
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
RD Series Only Components
18 Seat seal
EPDM, FKM, or nitrile
RDH Series Only Components
19 Backup ring
20 Seat seal
RD15 with LRS4 pilot regulator
PTFE
PCTFE or PEEK
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
44
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RD10 Series
Flow Coefficient: 3.79
Maximum Inlet Pressure: 1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 1015 psig (0 to 70.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
800
0 to 290 psig (0 to 20.0 bar)
0 to 1015 psig (0 to 70.0 bar)
0
1000
500
1500
2000
2500
3000
3500
50
Inlet Pressure, psig (bar)
700
Outlet Pressure, psig
600
40
500
1015 (70.0)
400
300
20
218 (15.0),
1015 (70.0)
200
580 (40.0),
1015 (70.0)
100
0
30
1015 (70.0)
Outlet Pressure, bar
0 to 130 psig (0 to 9.0 bar)
USA
10
580 (40.0)
218 (15.0)
0
500
1000
1500
2000
2500
2000
2500
800
Nitrogen Flow, std ft3/min
0
500
1000
1500
Flow Coefficient: 3.79
Maximum Inlet Pressure: 5800 psig50(400 bar)
Outlet Pressure Control Range: 0 to 362 psig (0 to 25.0 bar)
600
40
Pressure Control Range
0 to 145 psig (0 to 10.0 bar)
800
30
0 to 362 psig (0 to 25.0 bar)
700
Nitrogen Flow, Nm3/h
0
1000
500
1500
2000
2500
Outlet Pressure, psig
600
15,0 (218),
70,0 (1015)
10
500
300
40,0 (580),
70,0 (1015)
0
500
1000
100
580 (40.0),
3990 (275)
0
580 (40.0),
1015 (70.0)
500
1500
40
200
70,0 (1015)
40,0 (580)
2000
100
30
5802500
(40.0) 1015
(70.0)
3000
2900 (200),
3990 (275)
1000
Nitrogen Flow, std
EUR
400
50
300
15,0 (218)
200
0
5.0
500
3500
70,0 (1015)
Inlet Pressure, psig (bar)
700
20
400
0
3000
0
3500(200),
2900
3990 (275)
20
Outlet Pressure, bar
RDH10 Series
USA
10
1500
2000
2500
2000
2500
7.0
ft3/min
4.0
3.0
50
2.0
0
500
1000
1500
800
700
JPN
Pressure Regulators, RHPS Series
45
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RDH10 Series
Flow Coefficient: 3.79
Maximum Inlet Pressure: 5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 2537 psig (0 to 175 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
3000
0 to 2537 psig (0 to 175 bar)
0
2500
5000
7500
10 000
200
Inlet Pressure, psig (bar)
2500
Outlet Pressure, psig
12 500
150
2000
1500
2900 (200)
100
3990 (275)
1000
Outlet Pressure, bar
0 to 1450 psig (0 to 100 bar)
50
500
3990 (275)
1015 (70.0)
2900 (200), 2900 (200)
3990 (275)
580 (40.0)
0
0
2900 (200) 3990 (275)
3000
1500
4500
6000
7500
6000
7500
0
9000
Nitrogen Flow, std ft3/min
0
1500
3000
4500
9000
3000
Flow Coefficient: 3.79
200
Maximum Inlet Pressure: 5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 3625 psig (0 to 250 bar)
2500
150
Pressure Control Range
0 to 3625 psig (0 to 250 bar)
4000
Nitrogen Flow, Nm3/h
0
2000
10 000
8000
1500
250
200 (2900)
275 (3900)
Inlet Pressure, psig (bar)
100
3500
Outlet Pressure, psig
2000
6000
4000
E
1000
3000
50
200
2500
2000
0
200 (2900), 200 (2900)
275 (3900)
40,0 (580)
2500
1500
200 (2900) 275 (3900)
275 (3900)
70,0 (1015)
5000
500
3990 (275)
150
0
7500
10 000
12 500
2900
(200)
1000
3990
100
(275)
Outlet Pressure, bar
RDH10 Series
50
500
0
20
0
1500
3000
Nitrogen Flow, std
4500
6000
7500
6000
7500
4000
ft3/min
15
0
250
10
1500
3000
4500
20.0
27.5
3500
JP
46
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RD15 Series
Flow Coefficient: 7.30
Maximum Inlet Pressure: 1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
800
0 to 145 psig (0 to 10.0 bar)
0 to 290 psig (0 to 20.0 bar)
0
2000
1000
3000
4000
5000
6000
7000
50
Inlet Pressure, psig (bar)
700
Outlet Pressure, psig
600
40
500
30
400
300
1015 (70.0) 20
200
218 (15.0)
580 (40.0)
218 (15.0)
580 (40.0)
100
0
1000
US
10
580 (40.0)
1015 (70.0)
1015 (70.0)
0
Outlet Pressure, bar
0 to 43 psig (0 to 3.0 bar)
2000
3000
0
5000
4000
Nitrogen Flow, std ft3/min
0
1000
2000
3000
4000
5000
800
Flow Coefficient: 7.30
Maximum Inlet Pressure: 5800 psig50
(400 bar)
Outlet Pressure Control Range: 0 to 362 psig (0 to 25.0 bar)
700
600
40
Pressure Control Range
0 to 145 psig (0 to 100 bar)
400
30
0 to 362 psig (0 to 25.0 bar)
Nitrogen Flow, Nm3/h
0
1000
2000
3000
4000
5000
6000
Inlet Pressure, psig (bar)
70,0 (1015) 300
Outlet Pressure, psig
300
20
200
15,0 (218)
40,0 (580)
10
250
150
15,0 (218)
40,0 (580)
40,0 (580)
70,0 (1015)
100
15
70,0 (1015)
0
1000
2000
100
0
3000
4000
5000
580 (40.0), 1015 (70.0),
2900 (200), 3630 (250)
580 (40.0), 1015 (70.0),
2900 (200), 3630 (250)
50
5.00
EUR
400
25
350
20
200
0
500
0
800
1600
2400
6000
7000
1015 (70.0),
580 (40.0) 2900 (200),
3630 (250)
3200
10
Outlet Pressure, bar
RDH15 Series
US
5.0
0
4000
Nitrogen Flow, std ft3/min
4.0
3.0
25
2.0
0
800
1600
2400
3200
4000
400
7.0
350
JPN
Pressure Regulators, RHPS Series
47
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RDH15 Series
Flow Coefficient: 7.30
Maximum Inlet Pressure: 5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 2537 psig (0 to 175 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 1450 psig (0 to 100 bar)
0 to 1450 psig (0 to 100 bar),
calculated
3000
0
4000
8000
12 000
16 000
20 000
24 000
200
Inlet Pressure, psig (bar)
0 to 2537 psig (0 to 175 bar)
0 to 2537 psig (0 to 175 bar),
calculated
2500
2000
2900 (200)
3630 (250)
120
1500
80
1000
2900 (200)
3630 (250)
40
500
0
0
3200
6400
9600
Outlet Pressure, bar
Outlet Pressure, psig
160
0
16 000
12 800
Nitrogen Flow, std ft3/min
0
3200
6400
9600
12 800
16 000
3000
200
2500
160
2000
200 (2900)
120
250 (3630)
1500
E
80
1000
200 (2900)
40
0
250 (3630)
500
0
4000
8000
0
12 000
16 000
20 000
24 000
20
16
12
8.0
20.0
25.0
J
48
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
End
Connection
Size
A
B
C
D
E
RD(H)10
1 in.
6.18 (157)
2.28 (58.0)
3.07 (78.0)
3.54 (90.0)
1.97 (50.0)
RD(H)15
1 1/2 in.
6.61 (168)
2.44 (62.0)
3.78 (96.0)
4.53 (115)
2.03 (51.5)
Series
Dimensions, in. (mm)
4.53 (115)
Configuration
Top
3.27
(83.1)
Inlet gauge
connection
Gauge
connections
Outlet
Inlet
A
Outlet
Outlet gauge
connection
Inlet
B
E
1.77
1.77
(45.0)
C
(45.0)
Dome
connections
D
Shown with tubing for clarity; tubing not included.
Ordering Information
Build an RD(H)10 and RD(H)15 series regulator ordering number by combining the designators in the sequence shown below.
1
2
4
5
6
7
8
9
RDFA 10 A 1 - 02- X - V V
1 Series
RD =1015 psig (70.0 bar) maximum
inlet pressure (507 psig
[35.0 bar] with pilot regulator,
options 0, 1, or 2)
RDH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
10 = 1 in. / DN25
15 = 1 1/2 in. / DN40
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
10
V - EF
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pilot Regulator Options
Pressure Control Range
X = No pilot regulator, optional
RD series with LRS4 series pilot regulator
0 = 0 to 43 psig (0 to 3.0 bar)
1 = 0 to 130 psig (0 to 9.0 bar)
2 = 0 to 290 psig (0 to 20.0 bar)
RD series with RS2 series pilot regulator
3 = 0 to 1015 psig (0 to 70.0 bar
RDH series with RS2 series pilot regulator
4 = 0 to 145 psig (0 to 10.0 bar)
5 = 0 to 362 psig (0 to 25.0 bar)
6 = 0 to 1450 psig (0 to 100 bar)
7 = 0 to 2537 psig (0 to 175 bar)
8 = 0 to 3625 psig (0 to 250 bar)
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
11
9 Diaphragm Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RD series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RDH series
K = PCTFE
P = PEEK
11 Options
EF =External feedback to main
regulator
EFP =External feedback to pilot
regulator, limited to 290 psig
(20.0 bar)
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
49
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators—
RD(H)20 and RD(H)25 Series
Features
Options
■ Balanced poppet design
■ External feedback (EF) for improved
■ Diaphragm sensing
performance
■ Integral pilot regulator with dynamic
■ EF to main regulator limited by
standard outlet pressure range
regulation
■ EF to pilot regulator limited to
■ Dome-to-outlet pressure ratio
290 psig (20.0 bar)
approximately 1:1
■ NACE MR0175/ISO 15156-compliant
■ Large dome for improved stability
models
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Inlet Pressure
psig (bar)
RD20
RDH20
RD: 1015 (70.0)
(507 [35.0]
with LRS4 pilot
regulator)
RDH: 5800 (400)
RD25
RDH25
RD: 1015 (70.0)
RDH: 4060 (280)
Maximum
Outlet Control
Pressure
psig (bar)
RD:
1015 (70.0)
RDH:
2900 (200)
Sensing
Type
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (C°)
(Cv)
in. (mm)
–4 to 176
(–20 to 80)
Diaphragm See PressureTemperature
Ratings,
page 32.
13
21
Weight
(Without
Gauge / Dome Flanges)
Connection
lb (kg)
Inlet and
Outlet
Connections
2 in. NPT,
ISO/BSP parallel
thread, EN or
ASME flange
0.98
(25.0)
1.25
2 1/2 in. EN or
ASME flange
(32.0)
Use P1 gauge
connection of
pilot regulator.
Dome: 1/4 in.
ISO/BSP
parallel thread
44 (20)
88 (40)
See pages 50 and 50 for RD(H)20 flow data.
Materials of Construction
Component
RDH20 Series Regulator with Hard Seat Seal
1
2
3
4
5
6
7
8
9
11
13
14
15
1 Dome
Material / Specification
316L SS / A479 or EN10088
2 Cap screw
A4-80
3 Washer
A4
4 Dome plate
316L SS / A479 or EN10088
5 Diaphragm
EPDM, FKM, or nitrile
6 Diaphragm plate
20
7 Retaining ring
8 Body plate
10 O-ring
EPDM, FKM, or nitrile
11 Seat
12 Seat seal
Commercial stainless steel
316L SS / A479 or EN10088
9 Poppet
10
12
16
17
18
19
316L SS / A479 or EN10088
316L SS / A479 or EN10088
RD
RDH
13 Poppet housing
14 O-ring
EPDM, FKM, or nitrile
PCTFE or PEEK
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
15 Backup ring
16 Poppet spring
17 Body
PTFE
302 SS / A313
316L SS/ A479 or EN10088
18 Plug O-ring
EPDM, FKM, or nitrile
19 Body plug
316L SS / A479 or EN10088
20 Conical spring
302 SS / A313
(RDH20 only)
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
RDH20 with RS2 Pilot Regulator
RD25 with LRS4 Pilot Regulator
50
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RD20 Series
Flow Coefficient: 13
Maximum Inlet Pressure: 1015 psig (70.0 bar)
Outlet Pressure Control Range: 0 to 1015 psig (0 to 70.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
800
0 to 290 psig (0 to 20.0 bar)
0 to 1015 psig (0 to 70.0 bar)
0
2000
4000
6000
8000
10 000
12 000
50
Inlet Pressure, psig (bar)
700
Outlet Pressure, psig
600
40
500
30
400
1015 (70.0)
300
20
200
580 (40.0)
1015 (70.0)
218 (15.0)
218 (15.0) 580 (40.0)
100
0
0
1600
1015 (70.0)
580 (40.0)
3200
4800
Outlet Pressure, bar
0 to 130 psig (0 to 9.0 bar)
US
10
6400
0
8000
Nitrogen Flow, std ft3/min
0
1600
3200
Flow Coefficient: 13
Maximum Inlet Pressure: 5800 psig 50
(400 bar)
Outlet Pressure Control Range: 0 to 362 psig (0 to 25.0 bar)
0 to 145 psig (0 to 10.0 bar)
400
30
0 to 362 psig (0 to 25.0 bar)
6400
8000
800
700
600
40
Pressure Control Range
4800
Nitrogen Flow, Nm3/h
0
1500
3000
4500
6000
7500
500
9000
Inlet Pressure, psig
(bar)
70,0
(1015)
350
Outlet Pressure, psig
20
300
10
250
200
0
150
40,0 (580)
70,0 (1015)
15,0 (218)
15,0 (218) 40,0 (580)
0
2000
4000
300
20
200
70,0 (1015)
40,0 (580)
100
3630 (250), 2900 (200), 15
1015 (70.0), 580 (40.0)
0
6000
8000
10 000
12 000
EUR
400
25
10
Outlet Pressure, bar
RDH20 Series
US
100
50
0
5.0
3630 (250), 2900 (200),
1015 (70.0), 580 (40.0)
0
1200
3630 (250), 2900 (200),
1015 (70.0), 580 (40.0)
2400
3600
5.0
4800
6000
4800
6000
400
Nitrogen Flow, std ft3/min
4.0
3.0
25
2.0
0
1200
2400
3600
7.0
350
JPN
Pressure Regulators, RHPS Series
51
Flow Data
The graphs illustrate the change or “droop” in outlet pressures as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
RDH20 Series
Flow Coefficient: 13
Maximum Inlet Pressure: 5800 psig (400 bar)
Outlet Pressure Control Range: 0 to 2900 psig (0 to 200 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 1450 psig (0 to 100 bar)
0 to 1450 psig (0 to 100 bar),
calculated
3000
0 to 2537 psig (0 to 175 bar)
0 to 2537 psig (0 to 175 bar),
calculated
2400
7500
15 000
22 500
30 000
37 500
45 000
Inlet Pressure, psig (bar)
180
150
1800
120
3630 (250)
2900 (200) 3630 (250)
90
1200
2900 (200)
600
1015 (70.0)
580 (40.0), 1015 (70.0),
2900 (200), 3630 (250)
0
0
6000
3630 (250)
60
Outlet Pressure, bar
Outlet Pressure, psig
0 to 2900 psig (0 to 200 bar)
0 to 2900 psig (0 to 200 bar),
calculated
0
30
2900 (200), 3630 (250)
12 000
18 000
0
30 000
24 000
Nitrogen Flow, std ft3/min
RDH25 Series
0
12 000
6000
For flow curve information, contact your authorized Swagelok representative.
24 000
18 000
30 000
3000
180
2400
150
1800
120
250 (3630)
200 (2900) 250 (3630)
90
E
1200
60
200 (2900)
70,0 (1015)
40,0 (580), 70,0 (1015),
200 (2900), 250 (3630)
30
0
0
7500
15 000
250 (3630)
600
200 (2900), 250 (3630)
0
22 500
30 000
37 500
45 000
18
15
12
9.0
20.0
25.0
25.0
J
52
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
End
Connection
Size
A
B
RD(H)20
2 in.
9.33 (237)
7.28 (185)
2.44 (62.0)
4.33 (110)
5.51 (140)
RD(H)25
2 1/2 in.
11.8 (300)
9.25 (235)
3.42 (87.0)
4.92 (125)
6.69 (170)
Dimensions, in. (mm)
C
D
Side
E
Top
D
A
B
E
C
Shown with RS2 series pilot regulator.
Ordering Information
Build an RD(H)20 and RD(H)25 series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
RDFA 20 A 1 - 02- 0 - V V
1 Series
RD =1015 psig (70.0 bar) maximum
inlet pressure (507 psig
[35.0 bar] with pilot regulator,
options 0, 1, or 2)
RDH =5800 psig (400 bar) maximum
inlet pressure (RDH20);
4060 psig (280 bar) maximum
inlet pressure (RDH25)
2 Inlet / Outlet
B =Female ISO/BSP parallel thread➀
N = Female NPT➀
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
➀ RD(H)20 only.
3 Size
20 = 2 in. / DN50
25 = 2 1/2 in. / DN65
4 Pressure Class
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pilot Regulator Options
Pressure Control Range
X = No pilot regulator, optional
RD series with LRS4 series pilot regulator
0 = 0 to 43 psig (0 to 3.0 bar)
1 = 0 to 130 psig (0 to 9.0 bar)
2 = 0 to 290 psig (0 to 20.0 bar)
RD series with RS2 series pilot regulator
3 = 0 to 1015 psig (0 to 70.0 bar)
RDH series with RS2 series pilot regulator
4 = 0 to 145 psig (0 to 10.0 bar)
5 = 0 to 362 psig (0 to 25.0 bar)
6 = 0 to 1450 psig (0 to 100 bar)
7 = 0 to 2537 psig (0 to 175 bar)
8 = 0 to 2900 psig (0 to 200 bar
10
11
V - EF
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Diaphragm Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RD series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RDH series
K = PCTFE
P = PEEK
11 Options
EF =External feedback to main
regulator
EFP =External feedback to pilot
regulator, limited to 290 psig
(20.0 bar)
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
53
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators—
RD(H)30 and RD(H)40 Series
Features
Options
■ Balanced poppet design
■ External feedback (EF) for improved
■ Diaphragm sensing
performance
■ Integral pilot regulator with dynamic
■ EF to main regulator limited by
standard outlet pressure range
regulation
■ Dome-to-outlet pressure ratio
■ EF to pilot regulator limited to
290 psig (20.0 bar)
approximately 1:1
■ NACE MR0175/ISO 15156-compliant
■ Large dome for stability
models
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Inlet
Pressure
psig (bar)
Maximum
Outlet Control
Pressure
psig (bar)
Sensing
Type
–4 to 176
1015 (70.0) (507
RD
RDH
[35.0]
with LRS4 pilot
regulator)
4060 (280)
Temperature
Range
°F (C°)
1015 (70.0)
2900 (200)
(–20 to 80)
Diaphragm See PressureTemperature
Ratings,
page 32.
RD(H)30:
36
RD(H)40:
73
Weight
Seat
Inlet and
(With Class
Diameter
Outlet
Gauge / Dome 150 Flanges)
in. (mm)
Connections Connection
lb (kg)
Use P1 gauge
RD(H)30: EN or ASME connection of
flanges—
pilot regulator.
1.65 (42.0)
RD(H)40: RD(H)30: 3 in. Dome: 1/4 in.
2.36 (60.0) RD(H)40: 4 in.
ISO/BSP
parallel thread
Component
Materials of Construction
6
7
8
9
10
11
RD(H)30:
136 (62)
RD(H)40:
183 (83)
Material / Specification
1 Cap screw
RD(H)30 Series Regulator
1
2
3
4
5
Flow
Coefficient
(Cv)
A4-80
2 Washer
A4
3 Dome
316L SS / A479 or EN10088
4 Dome plate
316L SS / A479 or EN10088
5 Diaphragm
EPDM, FKM, or nitrile
Conical spring
(RD[H]30 only)
302 SS / A313
7 Diaphragm plate
316L SS / A479 or EN10088
6
8 Retaining ring
9 Body assembly
(body, reducers,
flanges)
Commercial stainless steel
316L SS / A479 or EN10088
10 Body plate
12
13
14
15
16
17
18
19
20
21 22
11 Poppet
316L SS / A479 or EN10088
12 O-ring
EPDM, FKM, or nitrile
13 Seat
14 Seat seal
316L SS / A479 or EN10088
RD
RDH
15 Poppet housing
16 O-ring
17 Plug O-ring
18 Guide ring
19 Poppet spring
20 Body plug
EPDM, FKM, or nitrile
PEEK
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
PTFE
302 SS / A313
316L SS / A479 or EN10088
21 Washer
22 Cap Screw
A4
A4-80
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
RD40
Poppet and Seat
RDH40
Poppet and Seat
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
54
Pressure Regulators, RHPS Series
Flow Data
For flow curve information, contact your authorized Swagelok representative.
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
End
Connection
Size
A
B
C
D
E
F
RD(H)30
3 in.
12.2 (310)
9.55 (243)
3.33 (84.6)
5.91 (150)
7.48 (190)
8.50 (216)
RD(H)40
4 in.
14.0 (356)
11.4 (290)
4.37 (111)
5.91 (150)
8.27 (210)
8.50 (216)
Dimensions, in. (mm)
Side
Top
F
A
B
Outlet
Inlet
C
D
E
Varies based on flange size
Shown with RS2 series pilot regulator.
Ordering Information
Build an RD(H)30 and RD(H)40 series regulator ordering number by combining the designators in the sequence shown below.
1
2
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
30 = 3 in. / DN80
40 = 4 in. / DN100
4 Pressure Class
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
4
5
6
7
8
9
RDFA 30 A 1 - 02- 0 - V V
1 Series
RD =1015 psig (70.0 bar) maximum
inlet pressure (507 psig
[35.0 bar] with pilot regulator,
options 0, 1, or 2)
RDH =4060 psig (280 bar) maximum
inlet pressure
2 Inlet / Outlet
3
5 Flange Facing
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pilot Regulator Options
Pressure Control Range
X = No pilot regulator, optional
RD series with LRS4 series pilot regulator
0 = 0 to 43 psig (0 to 3.0 bar)
1 = 0 to 130 psig (0 to 9.0 bar)
2 = 0 to 290 psig (0 to 20.0 bar)
RD series with RS2 series pilot regulator
3 = 0 to 1015 psig (0 to 70.0 bar
RDH series with RS2 series pilot regulator
4 = 0 to 145 psig (0 to 10.0 bar)
5 = 0 to 362 psig (0 to 25.0 bar)
6 = 0 to 1450 psig (0 to 100 bar)
7 = 0 to 2537 psig (0 to 175 bar)
8 = 0 to 2900 psig (0 to 200 bar
10
11
V - EF
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Diaphragm Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
RD series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
RDH series
P = PEEK (RDH40 only)
PU = Polyurethane
11 Options
EF =External feedback to main
regulator
EFP =External feedback to pilot
regulator
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
55
Integral Pilot-Operated, Dome-Loaded Pressure-Reducing Regulators,
High Sensitivity—LPRD20, LPRD25, LPRD30, LPRD40 Series
Features
Options
■ Balanced poppet design
■ Special cleaning to ASTM G93 Level C
■ Diaphragm sensing
■ Integral pilot regulator (LPRS4 series)
with dynamic regulation
■ High flow
■ Large diaphragm for high accuracy
■ Integral feedback line
■ Inlet and outlet gauges
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control
Pressure
Pressure
psig (bar)
psig (bar)
Temperature
Range
°F (C°)
Sensing
Type
Flow
Coefficient
(Cv)
–4 to 176
(–20 to 80)
LPRD
232
29.0
(16.0)
(2.0)
Diaphragm
See
PressureTemperature
Ratings,
page 32.
LPRD20:
LPRD25:
LPRD30:
LPRD40:
Materials of Construction
13
21
36
73
Seat
Diameter
in. (mm)
LPRD20:
0.98 (25.0)
LPRD25:
1.25 (32.0)
LPRD30:
1.65 (42.0)
LPRD40:
2.36 (60.0)
Inlet and
Outlet
Connections
Component
LPRD20 Series Regulator
7
8
9
10
11
12
2 Dome plate (2)
Material / Specification
316L SS / A479 or EN10088
3 Diaphragm
EPDM, FKM, or nitrile
4 Cap screw
A4-80
5 Washer
A4
6 Nut
7 Diaphragm screw
A2
316L SS / A479 or EN10088
8 Nut
A2
9 Washer
10 O-ring
11 Push rod
13 10 14 15 10 16
17 18 10 19 20 21
12 Guide bushing
13 Retaining ring
14 Body plate
LPRD20 with LPRS4 Pilot Regulator
15 Poppet
16 Seat
17 Poppet spring
Pilot regulator
18 Body plug
19 Poppet housing
20 Seat seal
21 Body assembly
A4
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
PTFE
Commercial stainless steel
316L SS / A479 or EN10088
431 SS / A276
316L SS / A479 or EN10088
302 SS / A313
316L SS / A479 or EN10088
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Dynamic regulation
(with fixed orifice)
Pressure gauge
Weight
lb (kg)
EN or ASME
Inlet and
flanges—
outlet gauges Varies with
LPRD20: 2 in.
included.
model
LPRD25: 2 1/2 in. Dome: 1/4 in. and end
connection
ISO/BSP
LPRD30: 3 in.
parallel thread
LPRD40: 4 in.
1 Dome assembly
1
2
3
4
5
6
Gauges /
Dome
Connection
Feedback line
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
56
Pressure Regulators, RHPS Series
Flow Data
For flow curve information, contact your authorized Swagelok representative.
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
End
Connection
Size
A
B
LPRD20
2 in.
5.87 (149)
3.94 (100)
LPRD25
2 1/2 in.
7.01 (178)
2.56 (65.0)
LPRD30
3 in.
5.87 (149)
3.94 (100)
LPRD40
4 in.
8.66 (220)
3.94 (100)
Dimensions, in. (mm)
Side
Top
13.0 to 15.4
(330 to 391)
Inlet
Outlet
A
Varies based on flange size
14.2
(360)
B
Ordering Information
Build an LPRD series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
LPRD FA20 A 1- 02- 2 - V V
1 Series
LPRD =232 psig (16.0 bar) maximum
inlet pressure
5 Flange Facing
1 = Raised face smooth
3 = RTJ
2 Inlet / Outlet
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
6 Body Material
02 = 316L SS
3 Size
20 = 2 in. / DN50
25 = 2 1/2 in. / DN65
30 = 3 in. / DN80
40 = 4 in. / DN100
4 Pressure Class
A = ASME class 150
N = DN class PN40
7
Pressure Control Range
2 = 1.4 to 14.5 psig (0.10 to 1.0 bar)
3 = 4.3 to 29 psig (0.30 to 2.0 bar)
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10
11
V- G93
9 Diaphragm Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
11 Options
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
57
Air-Loaded, Pressure-Reducing Regulators—
RA Series
Features
Options
■ Balanced poppet design
■ Gauge connection—choice of 4
configurations
■ Diaphragm sensing
■ Air-loaded pressure control with a
■ NACE MR0175/ISO 15156-compliant
choice of pilot-to-outlet pressure
ratios.
■ Special cleaning to ASTM G93 Level C
models
■ Remote control
■ Captured self-vent
■ Choice of dome-to outlet pressure
 WARNING: Self-venting
ratios: 1:15, 1:40, or 1:70
regulators can release system
fluid to atmosphere. Position
the self-vent hole away from
operating personnel.
■ Pneumatic actuation by spring-
loaded regulator or proportional
regulator
Technical Data
Series
Maximum
Maximum
Inlet
Outlet Control Temperature
Flow
Seat
Pressure
Pressure
Range
Coefficient Diameter
psig (bar)
psig (bar)
°C (°F)
(Cv)
in. (mm)
RA4
5800 (400)
5800 (400)
RA8
See PressureTemperature
Ratings,
page 32.
Inlet and Outlet
Connections
Gauge: 1/4 in. NPT
Dome: 1/4 in.
ISO/BSP parallel
thread
Vent: 1/8 in.
ISO/BSP parallel
thread
1/2 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
–4 to 176
(–20 to 80)
RA6
Gauge / Dome /
Vent
Connections
1.84
0.39 (10.0)
3/4 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1 in. ISO/BSP parallel thread,
EN or ASME flanges
Materials of Construction
RA4 Series Regulator
Component
1
2
3
1 Dome assembly
Material / Specification
316L SS / A479 or EN10088
2 Cap screw
A4-80
3 Washer
A4
4 Nut
4
5 Diaphragm
5
6
7
8
9
10
11
9
7
18
9
12
13
9
14
15
16
9
7
17
A2
EPDM, FKM, or nitrile
6 Diaphragm plate
316L SS / A479 or EN10088
7 Piston plate assembly
316L SS / A479 or EN10088
8 Backup ring
9 O-ring
10 Piston
11 Body
12 Relief seat
13 Venting poppet
14 Seat
15 Seat seal
PTFE
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
PCTFE or PEEK
316L SS/ A479 or EN10088
PCTFE or PEEK
16 Poppet
431 SS/ A276
17 Poppet spring
302 SS / A313
18 Body plug
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Weight
(Without
Flanges)
lb (kg)
12.5 (5.7)
13.6 (6.2)
13.6 (6.2)
58
Pressure Regulators, RHPS Series
Flow Data
For flow curve information, contact your authorized Swagelok representative.
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Series
End
Connection
Size
RA4
1/2 in.
RA6
3/4 in.
RA8
1 in.
Dimensions, in. (mm)
A
5.75 (146)
B
C
D
E
2.83 (72.0)
3.07 (78.0)
2.13 (54.0)
3.72 (94.6)
3.20 (82.0)
3.50 (89.0)
2.20 (56.0)
3.72 (94.6)
3.07 (78.0)
3.50 (89.0)
2.20 (56.0)
4.02 (102)
(183)
Outlet gauge connection
Dome
connection
A
Gauge
connection
Inlet
B
4.56 (116)
Standard Configuration
Top
7.20
Outlet
F
F
E
Vent
connection
Inlet
Outlet
D
C
Shown with tubing
for clarity; tubing not
included.
Pressure Regulators, RHPS Series
59
Ordering Information
Build an RA series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
10
11
RA
FA4A1- 02 - V V K - 15- GN2
1 Series
RA =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT➀
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
➀Available in 1/2 and 3/4 in. sizes only.
3 Size
4 = 1/2 in. / DN15
6 = 3/4 in. / DN20
8 = 1 in. / DN25
4 Pressure Class
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Seal Materials
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Ratio (Dome-to-Outlet Pressure)
15 = 1:15
40 = 1:40
70 = 1:70
11 Options
GN2 = Gauge connection, see below➀
GN4 = Gauge connection, see below
GN5 = Gauge connection, see below➀
None = Standard connection, see below
std
Gauge Connection
Configuration
Pressure reducing
Standard
Go
GN2
Gi Go
GN4
Go
8 Diaphragm Materials
GN5
Go Gi
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
9 Seat Seal Materials
➀ Not available in Back
combination
with flanges.
Pressure
K = PCTFE
P = PEEK
std
Gi
Gi
Gi Go
Gi Go
Gi
Gi
Go Gi
Gi Go
60
Pressure Regulators, RHPS Series
Back-Pressure, Spring-Loaded Regulators—BS Series
The BS series back-pressure regulators are suitable for most
gases and liquids. The BS series regulators feature a choice
of sensing types (diaphragm or piston), and seat and seal
materials to accommodate a variety of pressure, temperature,
and flow conditions.
The BS series regulators are available in sizes from 1/4 to
1 1/2 in. with a choice of threaded or flange end connections.
Features
The BSH series regulators are high-pressure versions of the
BS series regulators, and the LBS series are low-pressure,
high-accuracy versions of the BS series regulators.
The BS series regulators are available with several options,
including a variety of gauge connection configurations,
antitamper, special cleaning to ASTM G93 Level C, and
NACE MR0175/ISO 15156-compliant models.
Pressure-Temperature Ratings
■ Spring-loaded pressure control
■ Diaphragm or piston sensing types
■ Blue knob or screw adjustment
■ 316L SS materials of construction for
corrosion resistance
■ Maximum inlet pressure rating:
507 to 10 150 psig (35.0 to 700 bar)
■ Inlet control pressure range:
Up to 0 to 10 150 psig (0 to 700 bar)
Fluorocarbon FKM➀,
PCTFE
PEEK
Nitrile, EPDM, FFKM➁
BS2
BS2
BS(H)4
BSH10
BS(H)4 BSH10
BS10
Series BS(H)6, 8 BSH15
BSH2 BS(H)6, 8 BSH15
BS15
LBS4
Temperature
Maximum Inlet Pressure / Working Pressure
°F (°C)
psig (bar)
Seal Material
–4 (–20) to 95(35) 5800 (400)
149
(65) 3987 (275)
176
(80) 1812 (125)
3625
10 150
5800
3625
1015
507
(250)
(700)
(400)
(250)
(70.0)
(35.0)
➀Regulators with fluorocarbon FKM seat seal / O-ring materials limited to 5°F (–15°C).
➁ Regulators with FFKM seat seal / O-rings materials limited to 14°F (–10°C).
Technical Data—Performance Ratings
Maximum
Inlet Pressure
Series
psig (bar)
BS(H)2
BS2
BSH2
BS(H)4, 6, 8
BS(H)10, 15
LBS4
5 800 (400)
5 075 (350)
10 150 (700)
10 150 (700)
BS4
1 015 (70.0)
BSH4
5 800 (400)
BS6
1 015 (70.0)
BSH6
5 800 (400)
BS8
1 015 (70.0)
BSH8
5 800 (400)
BS10
1 015 (70.0)
BSH10
3 625 (250)
BS15
1 015 (70.0)
BSH15
3 625 (250)
LBS4
Maximum Inlet
Control Pressure
psig (bar)
507 (35.0)
Flow
Coefficient
(Cv )
Sensing
Type
Flow
Data
on Page
0.10
Piston
63
1.84
406 (28.0) diaphragm (0.39 in. [10.0 mm] seat) Diaphragm
0.49
or piston
5 220 (360) piston
66
(0.19 in. [5.0 mm] seat)
1.95
203 (14.0) diaphragm (0.39 in. [10.0 mm] seat) Diaphragm
0.49
or piston
5 220 (360) piston
66
(0.19 in. [5.0 mm] seat)
2.07
203 (14.0) diaphragm (0.39 in. [10.0 mm] seat) Diaphragm
0.49
or piston
5 220 (360) piston
67
290 (20.0) diaphragm
3 625 (250) piston
3.84
Diaphragm
or piston
—
290 (20.0) diaphragm
3 625 (250) piston
7.3
Diaphragm
or piston
—
1.3
Diaphragm
72
(0.19 in. [5.0 mm] seat)
290 (20.0)
Pressure Regulators, RHPS Series
Back-Pressure, Spring-Loaded Regulators—BS Series
BS Series Regulator
with Diaphragm Sensing and
Standard Knob Handle
BSH Series Regulator
with Piston Sensing and
Antitamper Option
Seat seal design
for low-pressure
applications
Seat seal design
for high-pressure
applications
Inlet
Inlet
Outlet
Outlet
Technical Data—Design
Series
BS2
BSH2
BS4
BSH4
BS6
BSH6
BS8
BSH8
BS10
BSH10
BS15
BSH15
LBS4
Seat
Diameter
in. (mm)
Gauge Connection
Weight
(Without Flanges)
lb (kg)
More
Information
on Page
Inlet and Outlet Connections
0.087 (2.2)
1/4 in. NPT
1/4 in. NPT
3.3 (1.5)
62
0.39 (10.0)
or 0.19 (5.0)
1/2 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1/4 in. NPT
7.7 (3.5)
65
0.39 (10.0)
or 0.19 (5.0)
3/4 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1/4 in. NPT
9.9 (4.5)
65
0.39 (10.0)
or 0.19 (5.0)
1 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1/4 in. NPT
9.9 (4.5)
65
0.53 (13.5)
1 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1/4 in. NPT or ISO/BSP
parallel thread
16.7 (7.6)
69
0.75 (19.0)
1 1/2 in. NPT, ISO/BSP parallel
thread, EN or ASME flanges
1/4 in. NPT or ISO/BSP
parallel thread
22.0 (10)
69
0.31 (8.0)
1/2 in. NPT
1/4 in. NPT
5.7 (2.6)
71
61
62
Pressure Regulators, RHPS Series
Compact, General-Purpose, Spring-Loaded Back-Pressure Regulators—
BS(H)2 Series
Features
Options
■ Piston sensing
■ NACE MR0175/ISO 15156-compliant
models
■ Bottom mounting
■ Low-friction piston for better control
■ Special cleaning to ASTM G93 Level C
■ Panel mounting kit sold separately—
no disassembly required
Technical Data
Series
Maximum
Inlet
Pressure
psig (bar)
Maximum
Inlet Control
Pressure
psig (bar)
BS2
5 800 (400)
5 075 (350)
Sensing
Type
–4 to 176
(–20 to 80)
Piston
BSH2
10 150 (700)
Temperature
Flow
Seat
Inlet and
Range
Coefficient Diameter
Outlet
°F (°C)
(Cv)
in. (mm)
Connections
10 150 (700)
See PressureTemperature
Ratings,
page 60.
0.10
0.087
(2.2)
1/4 in. NPT
Gauge / Vent
Connection
Weight
lb (kg)
Gauge:
1/4 in. NPT
Vent:
1/8 in. NPT
3.3 (1.5)
See page 63 for flow data.
Materials of Construction
Component
1 Knob assembly with
adjusting screw, nuts,
washer
BS2 Series Regulator
with Standard Threaded Vent
1
Material / Specification
Blue ABS with A2-70
2 Spring housing cover
3 Spring housing
431 SS / A276
316L SS / A479 or EN10088
4 C-ring
2
3
4
5
6
11
14
15
17
7
8
9
10
9
12
13
16
9
18
5 Spring guide
A2
316L SS / A479 or EN10088
6 Set spring
7 Bottom spring guide
50CRV4
316L SS / A479 or EN10088
8 Backup ring (BSH only)
9 O-rings
10 Piston plate
11 Piston
PTFE
EPDM, FKM, FFKM, or nitrile
316L SS / A479 or EN10088
12 Overtravel spring
13 Piston screw
14 Body plug
302 SS / A313
316L SS / A479 or EN10088
15 Poppet
431 SS / A276
16 Seat
PCTFE or PEEK
17 Seat retainer
316L SS / A479 or EN10088
18 Body
316L SS / A479 or EN10088
Wetted lubricants: Silicone-based and synthetic
hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
Pressure Regulators, RHPS Series
63
Flow Data
The graphs illustrate the change in inlet or outlet pressure as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
BS(H)2 Series
Flow Coefficient: 0.10
Maximum Inlet Pressure: BS2—5800 psig (400 bar); BSH2—10 150 psig (700 bar)
Inlet Pressure Control Range: 0 to 1450 psig (0 to 100 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 145 psig (0 to 10.0 bar)
2000
0 to 362 psig (0 to 25.0 bar)
0
50
100
150
200
250
300
0 to 1450 psig (0 to 100 bar)
120
1600
1200
80
60
800
40
Inlet Pressure, bar
Inlet Pressure, psig
100
400
20
0
0
40
0
80
120
160
200
160
200
Nitrogen Flow, std ft3/min
80
40
0
120
Flow Coefficient: 0.10
Maximum Inlet Pressure: BS2—5800
psig (400 bar); BSH2—10 150 psig (700 bar)
120
Inlet Pressure Control Range: 0 to 5075 psig (0 to 350 bar)
100
Pressure Control Range
0 to 2537 psig (0 to 175 bar)
1600
Nitrogen Flow, Nm3/h
80 0
6000
0 to 5075 psig (0 to 350 bar)
0 to 5075 psig (0 to 350 bar),
calculated
2000
150
300
450
600
750
900
60
1200
360
800
4800
40
Inlet Pressure, psig
E
300
400
20
3600
240
0
2400 0
50
100
150
200
250
300
0
180
Inlet Pressure, bar
BS(H)2 Series
120
1200
60
0
0
120
12
240
360
480
0
600
480
600
Nitrogen Flow, std ft3/min
10
8.0 0
6.0
360
120
240
360
6000
JP
64
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Bottom Mounting
2.28
Configuration
Top
(58.0)
Vent
connection
1.26
Inlet
(32.0)
2 mounting holes,
M5 thread,
0.197 (5.0) deep
0.87
5.83
(22.0)
(148)
(17.0)
Inlet
Inlet gauge
connection
2 gauge
connections
0.67
Outlet
Outlet gauge
connection
Shown with tubing for clarity; tubing not included.
Outlet
2.15 (54.5)
BS2
2.30 (58.5)
BSH2
Panel Mounting Kit
No disassembly required when using
panel mount kit. Panel mounting kit
ordering numbers:
2.76
(70.0)
BS2 series: RS2-P-02
36
2.
BSH2 series: RSH2-P-02
0)
0.
(6
2 holes,
0.22 (5.5)
A
A
3.13 (79.5)
2.36 (60.0)
Panel hole
Panel ring
Ordering Information
Build a BS2 or BSH2 series regulator ordering number by combining the designators in the sequence shown below.
1
1 Series
BS =5800 psig (400 bar) maximum
inlet pressure
BSH = 10 150 psig (700 bar)
maximum inlet pressure
2 Inlet / Outlet
N2 = 1/4 in. female NPT
3 Body Material
3
4
5
6
7
8
BS N2- 02- 1 - V V K - N
2
02 = 316L SS
4 Pressure Control Range
BS and BSH series
1 = 0 to 145 psig (0 to 10.0 bar)
2 = 0 to 362 psig (0 to 25.0 bar)
3 = 0 to 1450 psig (0 to 100 bar)
4 = 0 to 2537 psig (0 to 175 bar)
5 = 0 to 5075 psig (0 to 350 bar)
BSH series only
6 = 0 to 10 150 psig (0 to 700 bar)
5 Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
6 Piston Seals
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
7 Seat Material
BS series
K = PCTFE
P = PEEK
BSH series
P = PEEK
8 Options
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
65
General-Purpose, Spring-Loaded Back-Pressure Regulators—
BS(H)4, BS(H)6, and BS(H)8 Series
Features
Options
■ Diaphragm sensing:
■ Antitamper
0 to 406 psig (0 to 28.0 bar)
■ Gauge connections —choice of 4
■ Piston sensing:
configurations
0 to 5220 psig (0 to 360 bar)
■ NACE MR0175/ISO 15156-compliant
■ Threaded vent to monitor seal
models
integrity
■ Special cleaning to ASTM G93 Level C
Technical Data
Maximum Maximum
Inlet
Inlet Control
Pressure
Pressure
Series psig (bar)
psig (bar)
BS(H)4
BS4: 0 to
406 psig
BS:
(28.0 bar)
1015 (70.0) BS6, 8: 0
BS(H)6
to 203 psig
BSH:
(14.0 bar)
5800 (400)
BSH:
BS(H)8
5220 (360)
Sensing
Type
Temperature
Range
°F (°C)
Flow
Coefficient
(Cv)
Seat
Diameter
in. (mm)
BS4: 1.84
Diaphragm:
0.39 (10.0) for
–4 to 176
BS4: 0 to 406 psig
BS6: 1.95
up to
(–20 to 80)
(28.0 bar)
1160 psig
BS8: 2.07
See
BS6, 8: 0 to
(80.0 bar)
with 0.39 in.
Pressure203 psig (14.0 bar)
(10.0 mm) seat; 0.19 (5.0) for
Temperature
Piston:
2175 to
All: 0.49 with
Ratings,
0 to 5220 psig
5220 psig
0.19 in.
page 60.
(360 bar)
(5.0 mm) seat (150 to 360 bar)
Weight
(Without
Gauge Flanges)
and Vent
lb (kg)
Connections
Inlet and Outlet
Size
1/2 in.
DN15
3/4 in.
DN20
1 in.
DN25
Type
Gauge:
NPT
1/4 in.
NPT
ISO/BSP
parallel
Vent:
thread
1/8 in.
ASME or ISO/BSP
EN flange parallel
thread
7.7 (3.5)
9.9 (4.5)
See pages 66 and 67 for flow data.
Materials of Construction
Component
BSH Series Regulator
with Piston Sensing
and Antitamper Option
1 Spring housing
2 Spring guide
3 Ball
14
15
1
2
3
4
Common Components
BS Series Regulator
with Diaphragm Sensing
and Standard Knob
18
21
302 SS / A313
A4-80
6 Washer
9
7
11
8
10
13
A4
7 Seat seal
8 Body
PCTFE or PEEK
316L SS / A479 or EN10088
9 Poppet
431 SS / A276
10 O-rings
EPDM, FKM, or nitrile
316L SS / A479 or EN10088
12 Overtravel spring
21
10
19
20
10
22
Actuation
12
Commercial stainless steel
5 Cap screw
11 Seat
14 Knob assembly with
adjusting screw, nuts,
washers
15 Antitamper with O-ring,
adjusting screw
302 SS / A313
316L SS / A479 or EN10088
Blue ABS with A2-70
316L SS and A2-70
(O-ring same as item 10)
Diaphragm Only
Sensing Mechanism
17
16
316L SS / A479 or EN10088
4 Set spring
13 Body plug
5
6
Material / Specification
16 Diaphragm
EPDM, FKM, or nitrile
17 Diaphragm plate
316L SS / A479 or EN10088
18 Diaphragm screw
316L SS / A479 or EN10088
Piston Only
19 Piston plate
20 Piston
316L SS / A479 or EN10088
21 Backup ring
PTFE
22 Piston screw
316L SS / A479 or EN10088
Wetted lubricant: Silicone-based, synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
66
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change in inlet or outlet pressure as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
BS(H)4 Series
Flow Coefficient: 1.84
Maximum Inlet Pressure: BS4—1015 psig (70.0 bar); BSH4—5800 psig (400 bar)
Regulator Series
Nitrogen Flow, Nm3/h
2500
BSH4 only
0
300
900
600
1500
1200
2175 (150)
160
2175 (150)
2000
Inlet Pressure, psig
1800
120
2175 (150)
1500
1160 (80.0)
1160 (80.0)
1160 (80.0)
1000
80
580 (40.0)
580 (40.0)
500
406 (28.0)
101 (7.0)
0
0
400
USA
40
Pressure Control Range,
0 to ... psig (bar)
203 (14.0)
200
Inlet Pressure, bar
BS4 and BSH4
600
800
1000
800
1000
0
1200
Nitrogen Flow, std ft3/min
0
400
200
600
Flow Coefficient:1.95
160
Maximum Inlet Pressure: BS6—1015 psig (70.0 bar); BSH6—5800 psig (400 bar)
1200
2500
150 (2175)
150 (2175)
Nitrogen Flow, Nm3/h 150 (2175)
120
Regulator Series
BS6 and BSH6
2500
BSH6 only
400
0
1200
800
2000
Inlet Pressure, psig
1600
80,0 (1160)
80,0 (1160)2175 (150)
80,0 (1160)
2175 (150)
80
1500
2000
125
500
28,0 (406)
1500
14,0 (203)
0
1000 0
300
1160 (80.0)
1160 (80.0)
7,0 (101)
600
1200
900
EUR
150
1000
40,0 (580)
2175
40,0
(580)(150)
40
1500
1160 (80.0)
1800
580 (40.0)
100
0
75
USA
50
580 (40.0)
500
16
0
2000
Inlet Pressure, bar
BS(H)6 Series
101 (7.0)
0
200
203 (14.0)
400
406 (28.0)
600
Pressure Control Range,
0 to ... psig (bar)
15.0
1000
800
15.0
1200
25
0
1400
Nitrogen Flow, std ft3/min
15.0
12
8.0
150
0
200
400
600
8.0
8.0
8.0
800
4.0
1000
150 (2175)
1200
1400
2500
JPN
Pressure Regulators, RHPS Series
67
Flow Data
The graphs illustrate the change in inlet or outlet pressure as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
BS(H)8 Series
Flow Coefficient: 2.07
Maximum Inlet Pressure: BS8—1015 psig (70.0 bar); BSH8—5800 psig (400 bar)
Regulator Series
Nitrogen Flow, Nm3/h
BS8 and BSH8
2500
BSH8 only
0
300
900
600
1500
1200
1800
2175 (150)
160
2175 (150)
120
2175 (150)
1500
1160 (80.0)
1160 (80.0)
1160 (80.0)
1000
580 (40.0)
406 (28.0)
203 (14.0)
0
40
406 (28.0)
500
Pressure Control Range,
0 to ... psig (bar)
101 (7.0)
43 (3.0)
0
200
400
80
Inlet Pressure, bar
Inlet Pressure, psig
2000
600
800
1000
800
1000
0
1200
Nitrogen Flow, std ft3/min
0
400
200
600
160
1200
2500
150 (2175)
150 (2175)
2000
150 (2175)
120
1500
80,0 (1160)
80,0 (1160)
80,0 (1160)
80
1000
40,0 (580)
40
28,0 (406)
500
28,0 (406)
0
E
14,0 (203)
7,0 (101)
3,0 (43)
0
300
600
1200
900
1500
1800
0
15.0
16
15.0
12
8.0
15.0
8.0
8.0
8.0
J
nly
68
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
2.72
(69.2)
Series
End
Connection
Size
BS(H)4
1/2 in.
9.06 (230) 2.83 (72.0) 3.07 (78.0) 2.09 (53.0) 3.62 (92.0)
BS(H)6
3/4 in.
9.25 (235) 3.23 (82.0) 3.50 (89.0) 2.20 (56.0)
3.94 (100)
BS(H)8
1 in.
9.25 (235) 3.07 (78.0) 3.50 (89.0) 2.20 (56.0)
3.94 (100)
Dimensions, in. (mm)
A
B
C
Panel Mounting
BS(H)4 only
0.67
D
E
Configuration
Top
0.67
(17.0)
Threaded
vent
connection
A
Gauge
connection
(17.0)
1.10
Inlet
Outlet
Inlet
(28.0)
Outlet
E
D
1.10
(28.0)
4 mounting
holes,
RS4 onlyM6 thread
Inlet gauge
connection
Inlet gauge
connection
C
B
RS6 and 8 only RS6 and 8 only
Shown with tubing for clarity; tubing not included.
Ordering Information
Build a BS(H)4, BS(H)6, and BS(H)8 series regulator ordering number by combining the designators in the sequence shown
below.
1
2
4
5
6
7
8
9
10
11
BS
FA4A1
- 02- 1 - V V K- GN2
1 Series
BS =1015 psig (70.0 bar) maximum
inlet pressure
BSH =5800 psig (400 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
4 = 1/2 in. / DN15
6 = 3/4 in. / DN20
8 = 1 in. / DN25
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
9 Diaphragm / Piston O-Rings
V = Fluorocarbon FKM
Pressure reducing
std = Nitrile
N
E = EPDM
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
K = PCTFE
P = PEEK
7 Pressure Control Range
Diaphragm sensing
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 101 psig (0 to 7.0 bar)
3 = 0 to 203 psig (0 to 14.0 bar)
4 = 0 to 406 psig (0 to 28.0 bar)➀
Piston sensing
4 = 0 to 406 psig (0 to 28.0 bar)➁
5 = 0 to 580 psig (0 to 40.0 bar)
6 = 0 to 1160 psig (0 to 80.0 bar)
7 = 0 to 2175 psig (0 to 150 bar)
9 = 0 to 4060 psig (0 to 280 bar)
11 = 0 to 5220 psig (0 to 360 bar)
11 Options
Back Pressure
A
= Antitamper
std
GN1 = Gauge connection, see below
GN2 = Gauge connection, see below
GN5 = Gauge connection, see below
Gi Go seeGbelow
Gi Standard
Gi connection,
i Go
None =
➀ BS(H)4 series only.
➁ BS(H)6 and BS(H)8 series only.
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
Go
Gi Go
Go
Go Gi
10 Seat Seal Material
Gauge Connection Configuration
Standard
Gi
GN1
Gi
GN2
GN5
Go Gi
Gi Go
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
69
General-Purpose, Spring-Loaded Back-Pressure Regulators—
BS(H)10 and BS(H)15 Series
Features
Options
■ Balanced poppet design
■ NACE MR0175/ISO 15156-compliant
models
■ Diaphragm sensing:
0 to 290 psig (0 to 20.0 bar)
■ Special cleaning to ASTM G93 Level C
■ Piston sensing:
0 to 3625 psig (0 to 250 bar)
■ High flow capacity
Technical Data
Series
BS(H)10
Maximum
Inlet
Pressure
psig (bar)
BS:
1015 (70.0)
BSH:
BS(H)15 3625 (250)
Maximum
Inlet Control
Pressure
psig (bar)
Sensing
Type
Diaphragm:
0 to 290 psig
BS:
290 (20.0)
BSH:
3625 (250)
Connections
Temperature
Flow
Seat
Range
Coefficient Diameter
°F (°C)
(Cv)
in. (mm)
–4 to 176
(–20 to 80)
Inlet and Outlet
Size
3.84
0.53 (13.5)
1 in.
DN25
7.3
0.75 (19.0)
1 1/2 in.
DN40
(20.0 bar)
See PressurePiston:
Temperature
0 to 3625 psig
Ratings,
(0 to 250 bar)
page 60.
Type
NPT
ISO/BSP
parallel
thread
ASME or
EN flange
Gauge
Weight
(Without
Flanges)
lb (kg)
1/4 in.
NPT or
ISO/BSP
parallel➀
16.7
(7.6)
22.0
(10.0)
➀ Regulators with NPT inlet / outlet connections have 1/4 in. NPT gauge connections.
Materials of Construction
BS Series Regulator
with Diaphragm Sensing and
Soft Seat Seal
Component
Material / Specification
1 Adjusting screw
BSH Series Regulator
with Piston Sensing and
Hard Seat Seal
A2-70
2 Set screw nut
A2
3 Ball
420 SS (Hardened)
4 Upper spring guide
Common Components
5 Spring housing assembly
1
2
3
4
5
6
22
10
23
24
25
26
23
10
50CRV4
7 Cap screw
A4-80
8 Washer
A4
9 Bottom spring guide
316L SS / A479 or EN10088
10 O-ring
EPDM, FKM, or nitrile
11 Poppet housing
12 Seat seal
14 Poppet
15 Body
316L SS / A479 or EN10088
BS
EPDM, FKM, or nitrile
BSH
PCTFE or PEEK
316L SS / A479 or EN10088
16 Body plug
Diaphragm Only
7
8
9
10
11
12
13
10
14
15
10
16
6 Set spring
13 Seat
Piston Only
17
8
18
19
20
21
10
316L SS / A479 or EN10088
17 Nut
A4
18 Diaphragm
EPDM, FKM, or nitrile
19 Clamp plate
316L SS / A479 or EN10088
20 Retaining ring
1.4122 Steel
21 Body plate
316L SS / A479 or EN10088
22 Piston
316L SS / A479 or EN10088
23 Backup ring
PTFE
24 Piston plate
316L SS / A479 or EN10088
25 Overtravel spring
26 Piston screw
302 SS / A313
316L SS / A479 or EN10088
Wetted lubricant: Silicone-based, synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
70
Pressure Regulators, RHPS Series
Flow Data
For flow curve information, contact your authorized Swagelok representative.
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
1.97
Series
End
Connection
Size
BS(H)10
1 in.
10.5 (266) 3.54 (90.0) 3.07 (78.0) 2.28 (58.0) 1.97 (50.0) 1.77 (45.0)
BS(H)15
1 1/2 in.
10.8 (275) 4.53 (115) 3.78 (96.0) 2.44 (62.0) 2.01 (51.0) 1.77 (45.0)
(50.0)
Dimensions, in. (mm)
A
B
C
Gauge Connection
D
E
F
Configuration
Top
4.53
4.53
(115)
(115)
A
Inlet
Outlet
F
Inlet
Only one gauge with a
50 mm (2 in.) or larger
dial size fits directly into
the body.
2 gauge
connections
Outlet gauge
connection
Inlet gauge
connection
Outlet
D
E
B
C
Shown with tubing for clarity; tubing not included.
Ordering Information
Build a BS(H)10 and BS(H)15 series regulator ordering number by combining the designators in the sequence shown below.
1
2
4
5
6
7
8
9
BSFA 10 A 1 - 02- 1 - V V
1 Series
BS =1015 psig (70.0 bar) maximum
inlet pressure
BSH =3625 psig (250 bar) maximum
inlet pressure
2 Inlet / Outlet
B =Female ISO/BSP parallel thread
N = Female NPT
FA = ASME B16.5 flange
FD = EN 1092 (DIN) flange
3 Size
10 = 1 in. / DN25
15 = 1 1/2 in. / DN40
4 Pressure Class
3
Omit designator if flanges are not
ordered.
A = ASME class 150
B = ASME class 300
C = ASME class 600
E = ASME class 1500
F = ASME class 2500
M = DN class PN16
N = DN class PN40
5 Flange Facing
Omit designator if flanges are not
ordered.
1 = Raised face smooth
3 = RTJ
6 Body Material
02 = 316L SS
7 Pressure Control Range
Diaphragm sensing (BS series only)
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 72 psig (0 to 5.0 bar)
3 = 0 to 145 psig (0 to 10.0 bar)
4 = 0 to 290 psig (0 to 20.0 bar)
Piston sensing (BSH series only)
5 = 0 to 580 psig (0 to 40.0 bar)
6 = 0 to 1450 psig (0 to 100 bar)
7 = 0 to 2610 psig (0 to 180 bar)
8 = 0 to 3625 psig (0 to 250 bar)
10
11
V - N
8 Seal Material
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
9 Diaphragm / Piston O-Rings
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
10 Seat Seal Material
BS series
V = Fluorocarbon FKM
N = Nitrile
E = EPDM
BSH series
K = PCTFE
P = PEEK
11 Options
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
Pressure Regulators, RHPS Series
High-Sensitivity, Spring-Loaded Back-Pressure Regulators—
LBS4 Series
Features
Options
■ Diaphragm sensing
■ NACE MR0175/ISO 15156-compliant
model
■ Bottom mounting and panel
mounting
■ Special cleaning to ASTM G93 Level C
Technical Data
Series
Maximum
Inlet
Pressure
psig (bar)
Maximum
Inlet Control
Pressure
psig (bar)
Sensing
Type
Temperature
Flow
Range
Coefficient
°F (°C)
(Cv)
Seat
Diameter
in. (mm)
Inlet and
Outlet
Connection
Gauge
Connection
Weight
lb (kg)
0.31 (8.0)
1/2 in. NPT
1/4 in. NPT
5.7 (2.6)
–4 to 176
(–20 to 80)
LBS4
507 (35.0)
290 (20.0)
Diaphragm See PressureTemperature
Ratings,
page 60.
1.3
See pages 72 and 72 for flow data.
Materials of Construction
LBS Series Regulator with Soft Seat
Component
1 Knob assembly with
adjusting screw, nuts
1
2 Spring housing cover
3 Spring housing
Material / Specification
Blue ABS with A2-70
316L SS / A479 or EN10088
4 C-ring
2
3
4
5
6
7
8
316L SS / A479 or EN10088
6 Set spring
50CRV4
7 Cap screw
A4-80
8 Washer
9 Bottom spring guide
10 Clamp ring
A2
316L SS / A479 or EN10088
11 Diaphragm
9
PTFE or 316L SS
12 Body
10
14
15
16
17
18
5 Spring guide
A2
13 Seat retainer
316L SS / A479 or EN10088
14 Poppet housing
11
12
13
15 Seat seal
FKM, FFKM, EPDM, or nitrile
16 O-ring
17 Seat
PTFE
316L SS / A479 or EN10088
18 Poppet
431 SS / A276
Wetted lubricants: Silicone-based, synthetic hydrocarbon-based
Wetted components listed in italics.
Gauge plugs (not shown): 431 SS / A276.
71
72
Pressure Regulators, RHPS Series
Flow Data
The graphs illustrate the change in inlet or outlet pressure as the flow rate increases.
For more flow curve information, contact your authorized Swagelok representative.
LBS4 Series
Flow Coefficient: 1.3
Maximum Inlet Pressure: LBS4—507 psig (35.0 bar)
Inlet Pressure Control Range: 0 to 43 psig (0 to 3.0 bar)
Pressure Control Range
Nitrogen Flow, Nm3/h
0 to 43 psig (0 to 3.0 bar)
60
0
15
30
45
60
75
90
4.0
3.0
40
30
2.0
20
Inlet Pressure, bar
Inlet Pressure, psig
50
USA
1.0
10
0
0
20
10
30
40
50
60
40
50
60
0
Nitrogen Flow, std ft3/min
LBS4 Series
0
10
20
30
Flow Coefficient: 1.3
4,0
Maximum Inlet Pressure: LBS4—507 psig (35.0 bar)
Inlet Pressure Control Range: 0 to 290 psig (0 to 20.0 bar)
50
3,0
Pressure Control Range
0 to 290 psig (0 to 20.0 bar)
400
0 to 130 psig (0 to 9.0 bar)
Nitrogen Flow, Nm3/h
0
75
60
150
225
40
300
375
450
EUR
30
2,0
300
1,0
10
16
200
0
0
15
30
45
60
75
90
012
8.0
100
Inlet Pressure, bar
Inlet Pressure, psig
24
20
20
US
4.0
0
0.4
0
50
100
150
200
250
300
200
250
300
0
Nitrogen Flow, std ft3/min
0.3
0
0.2
24
50
100
150
400
JPN
Pressure Regulators, RHPS Series
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
3.52
2.28
Configuration
Top
(89.5)
(58.0)
Inlet gauge
connection
Vent
connection
6.54
(166)
Inlet
0.75
(19.0)
Inlet
1.42
(36.0)
2.83
Outlet
2.48
(63.0)
Outlet
2 gauge
connections
(72.0)
Inlet gauge
connection
0.83
1.76
Shown with tubing for clarity; tubing not included.
(21.0)
(44.7)
3.52
(89.5)
Bottom Mounting
Panel Mounting
Panel hole:
2.40 (61.0)
BAR
1.18
2.83
(30.0)
(72.0)
2 mounting holes for
M5  20 screws
4 mounting holes
M6 thread,
0.39 (10.0) deep
3.03
(77.0)
Ordering Information
Build an LBS4 series regulator ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
LBS N4- 02- 1 - T T
1 Series
LBS =507 psig (35.0 bar) maximum
inlet pressure
2 Inlet / Outlet
N4 = 1/2 in. female NPT
3 Body Material
02 = 316L SS
4 Pressure Control Range
1 = 0 to 43 psig (0 to 3.0 bar)
2 = 0 to 130 psig (0 to 9.0 bar)
3 = 0 to 290 psig (0 to 20.0 bar)
5 Seal Material
T = PTFE
6 Diaphragm
T = PTFE
M =316L SS: only for 0 to 43 psig
(0 to 3.0 bar) and 0 to 130 psig
(0 to 9.0 bar) pressure control
ranges
7
8
V - N
7 Seat Seal Material
V
N
E
F
=
=
=
=
Fluorocarbon FKM
Nitrile
EPDM
FFKM
8 Options
N = NACE MR0175/ISO 15156
G93 = ASTM G93 Level C-cleaned
73
74
Pressure Regulators, RHPS Series
Pressure Regulators, RHPS Series
75
Additional Products
■ For additional Swagelok pressure
regulators, see the Pressure
Regulators catalog, MS-02-230.
■ For tank blanketing regulators,
see the Tank Blanketing Pressure
Regulators, RHPS Series catalog,
MS-02-431.
■ For sanitary pressure regulators, see
the Sanitary Pressure Regulators,
RHPS Series catalog, MS-02-436.
■ For Swagelok pressure gauges, see
the Industrial and Process Pressure
Gauges catalog, MS-02-170.
■ For Swagelok tube fittings products,
see the Gaugeable Tube Fittings and
Adapter Fittings catalog, MS-01-140.
 RHPS series pressure regulators are not “Safety
Accessories” as defined in the Pressure Equipment
Directive 97/23/EC.
 Do not use the regulator as a shutoff device.
Safe Product Selection
When selecting a product, the total system design must
be considered to ensure safe, trouble-free performance.
Function, material compatibility, adequate ratings,
proper installation, operation, and maintenance are the
responsibilities of the system designer and user.
Caution: Do not mix or interchange parts with those of
other manufacturers.
Warranty Information
Swagelok products are backed by The Swagelok Limited
Lifetime Warranty. For a copy, visit swagelok.com or contact
your authorized Swagelok representative.
Swagelok—TM Swagelok Company
© 2012–2016 Swagelok Company
Printed in U.S.A., AGS
January 2016, RF
MS-02-430