Ball valves
for steam
Ball valves for steam applications
Steam systems which perform well have been designed
with care using products of the highest quality
Spirax Sarco has 80 years of experience and knowledge of steam systems and the equipment
associated with them. Occasionally it is essential to isolate sections of pipeline or plant, either by hand or
remote control. Spirax Sarco ball valves do this safely, predictably, and reliably because they are
designed and manufactured specifically for steam.
The severity of steam does not allow compromise, it requires the best in design. All Spirax Sarco
ball valves meet these requirements, resulting from many years of dedicated research and
development, manufacturing investment and crucial applications' experience.
Features of good design
Stem packing system
Ease of use
PTFE, R-PTFE, PDR 0.8, graphite or
PEEK 'O' ring seals plus a belleville
washer provide hermetic closure and
reduce leeks to atmosphere.
Ergonomically designed.
Blow out proof stem
Integrated seat and
body gasket
Available in all Spirax Sarco ball valves.
Less components and easier
maintenance. (Only available for
M10V and M10S ranges).
Antistatic device
Floating ball concept
Antistatic device, conforming to
BS 5351, to discharge static electricity
build-up on the ball.
Our floating ball design combined with
soft seat offers tight shut-off according
to ANSI Class VI.
User benefits
• All Spirax Sarco products comply with the European Pressure Equipment Directive 97 / 23 / EC.
• No leaks from the valve - single seat / seal arrangement.
• High capacity, low pressure drop, low energy loss.
• No sticking or erratic movement even at high pressures - low operating torque.
• Automatic recovery of seal wear - Belleville washers.
• Easily automated - ISO mountings as standard on certain models.
• Seat and seal materials to suit the conditions; PTFE, R-PTFE, PEEK, PDR 0.8.
• ISO 9001/ 2000 - traceability of materials and relevant certification.
• Spirax Sarco's guarantee of worldwide knowledge, service and technical support.
2
Note: Du-pont, PEEK and PDR 0.8 are registered tradenames.
Seat types and materials
A flexible seat provides tight shut-off at high and low pressures, and reduces wear and valve torque.
Single seat/body gasket arrangement is available for certain models. Cavity filler seats are also available.
The complete valve is specially designed for steam applications.
PTFE
PTFE is the material of choice where low friction, high durability, excellent thermal
resistance or chemical inertness are required.
Recommended for saturated steam up to 10 bar g.
PDR 0.8
The steam seat for excellence. Specially developed by Du-pont for
Spirax Sarco it allows elevated temperatures (260°C); and a low coefficient of friction.
Recommended for saturated steam up to 17.5 bar g.
PEEK
Polyetheretherketone is a tough, high temperature, thermoplastic with
high tensile and shear strength, excellent creep, fatigue and chemical resistance.
Recommended for saturated steam up to 39 bar g.
Glass filled PTFE
(R-PTFE)
The superior compression and heat resistance of glass filled PTFE (25% of glass filler)
reduces wear at high loads. Specially recommended for clean steam applications.
Options for the ball valve range
Locking
handles
Extended
stems
Oval
handles
Extended
butt weld ends
Self-venting ball
to prevent hydraulic locking
Automation
Spirax Sarco recommends ISO mounting ball valves for automation. Single and double acting pneumatic
actuators (BVA200 series) and electric ¼ turn actuators (BVEA200 series) are available, with a
comprehensive range of limit switch boxes, and clutch gearboxes for manual overide. These accessories
can be supplied in a single, compact, assembled package. For more information see the 'Automation'
sales brochure.
Ball valve range for steam applications
Low pressure steam, condensate and process water
M10V, M31V ISO and M40V ISO
M10S, M10S ISO, M20S, M21S ISO
Medium pressure steam, condensate and process water M31S ISO and M40S ISO
High pressure steam
M10H ISO, M20H and M31H ISO
Clean steam
M60G and M60V
Boiler blowdown
ABV20 and KBV20
3
M10V, M31V ISO and M40V ISO
50
A - F - C M10S and M10S ISO: Scrd, SW,
BW, PN40 and ANSI 300.
M31S ISO: ANSI 300.
Temperature °C
A - D - E M31S ISO: PN16.
A - B - C M20S, M40S ISO, ABV20 and
KBV20 : ANSI 150.
A - D - C M20S, M21S ISO, ABV20 and
KBV20: PN40.
2
0
M60V: Virgin PTFE seats.
16 17.5
14
Pressure psi g
150
250
500
200
B
A
D
Steam
saturation
curve
100
50
400
300
200
C 100
0
2
0
4
100
310
260 A
250
G
200
150
Steam
100
saturation
50
curve
0
0
5
10
200
Temperature °C
A-C
12
100
6
8
10
12
14
16 17.5
200
Pressure psi g
300
400
500
590
500
B
F
C 400
300
200
H
D 100
E
15
20
25
30
35
39
Pressure bar g
Pressure psi g
The product must not be
used in this region.
M60G: Glass reinforced
PTFE seats.
10
Pressure bar g
100
50
The product can only be used for short periods in this region.
A-B
8
6
4
C
0
50
25
100
75
A
125
392
150
300
100
Steam
saturation
curve
50
0
200
C
0
2
4
Pressure bar g
6
7
B
100
8 8.5
Temperature °F
Clean steam
0
300
B 200
E
150
M60G and M60V
4
Steam
saturation
curve
400
Pressure bar g
Temperature °C
High pressure steam
A-F-H
D
Temperature °F
A-B-D
A-G-E
250
500
200
F
200
M10H ISO, M20H and M31H ISO
A-C-D
150
A
50
0
10
Pressure psi g
100
100
M20S, M40S ISO, ABV20 and
KBV20: ANSI 300.
The product must not be
used in this region.
M10H ISO: Scrd, SW and BW.
M10H ISO, M20H and M31H ISO:
ANSI 300.
M10H ISO and M20H: PN40.
M10H ISO, M20H and
M31H ISO: ANSI 150.
M31H ISO: PN16.
50
8
6
4
Pressure bar g
150
260
Temperature °C
The product must not be
used in this region.
0
200
0
M20S, M21S ISO, M40S ISO
ABV20 and KBV20
2
100
Temperature °F
Medium pressure steam,
condensate and process water
A-D-B-C M10S, M10S ISO
and M31S ISO: ANSI 150.
200
C
0
300
Temperature °F
The product must not be
used in this region.
260
145
446
400
Steam
saturation
curve
100
M10S, M10S ISO and M31S ISO
125
100
75
B
150
0
Pressure psi g
50
25
230
200 A
Temperature °C
The product must not be
used in this region.
A - B - C M10V: Scrd, SW, BW,
ANSI 150, ANSI 300
and PN40.
M31V ISO: PN16, ANSI 150
and ANSI 300.
M40V ISO: ANSI 150
and ANSI 300.
0
Temperature °F
Low pressure steam,
condensate and
process water
Operating range
Dimensions
(approximate) in mm
For full details of dimensions and weights please refer to the relevant Technical Information Sheet, available on our website.
2 piece body
3 piece body
1 piece body
C
C
C
A
A
A
M10V / M10S (3 piece body)
Size
RB
6
10
15
20
25
32
40
50
65
DN
Scrd, BW
FB
RB
56
51
51
59
84
93
102
118
152
56
56
63
68
86
97
106
124
152
6
10
15
20
25
32
40
50
A
SW
FB
56
63
68
86
97
106
124
152
ANSI 150
C
PN40
Scrd, SW, BW
Flanged PN40 & ANSI 150
108
117
127
140
165
178
191
ANSI 300
(M10S only)
140
152
165
178
190
216
241
130
150
160
180
200
230
290
57
57
61
63
91
95
109
115
132
87
89
91
95
109
115
132
ANSI 150
ANSI 300
PN40
Scrd, SW, BW
Flanged PN40 & ANSI 150
108
117
127
140
165
178
191
140
152
165
178
190
216
241
130
150
160
180
200
230
290
63
63
66
69
100
104
112
120
140
81
84
100
104
112
120
140
M10S ISO / M10H ISO (3 piece body)
Size
RB
6
10
15
20
25
32
40
50
65
DN
Scrd, BW
FB
RB
56
56
56
59
84
93
102
118
152
56
56
63
68
86
97
106
124
152
6
10
15
20
25
32
40
50
A
SW
FB
56
63
68
86
97
106
124
152
C
M31V ISO / M31S ISO / M31H ISO (2 piece body)
Size
A
C
DN
ANSI 150
ANSI 300
PN16 F1
PN16 F4 / F5
ANSI 150
ANSI 300
PN16 F1 & F4 / F5
50
178
216
230
150
140
140
140
65
190
241
290
170
166
168
166
80
203
283
310
180
180
182
180
100
229
305
350
190
218
218
218
150
394
+403
480
350
266
266
266
200
457
502
600
400
311
315
311
M21S ISO
M20S / M20H / ABV20 / KBV20
(1 piece body) (1 piece body)
Size
DN
15
20
25
32
40
50
65
80
100
A
PN40
115
120
125
130
140
150
170
180
190
C
All
81
84
99
102
124
130
142
156
175
Size
A
C
M40V ISO / M40S ISO
M60G / M60V
(1 piece body)
(3 piece body) *
Size
A
C
Size
A
C
DN ANSI 150 ANSI 300 & PN40 ANSI 150 ANSI 300 PN40 DN ANSI 150 ANSI 300 ANSI 150 ANSI 300 DN Tri-clamp Tube All
25
127
165
106
106
106
25
127
165
32
40
50
65
80
100
150
140
165
178
191
203
229
267
178
190
216
241
283
305
403
111
126
134
146
168
180
246
110
126
134
146
168
180
246
109
126
134
146
168
180
246
32
165
190
50
178
216
65
190
241
80
203
100
150
100
15
89
100
57
115
115
20
102
102
63
129
129
25
114
124
91
142
142
40
140
138 109
283
144
162
50
159
150 115
229
305
172
178
80
240
240 158
267
403
206
220
100
280
280 168
*Note: The M60 is also available in other sizes upon request: DN10, DN32 and DN65.
100
5
Selection table
Applications
Model
Sizes
Body
Saturated steam
Connections
Maximum Maximum
pressure temperature
bar g
°C
M10V
DN6 to
DN50
3 Piece
10
184
3 Piece
10
184
DN50
to
DN200
2 Piece
10
184
M40V ISO
DN25
to
DN150
1 Piece
10
184
ANSI 150
ANSI 300
208
BSP, BSPT,
NPT, SW, BW,
PN40
ANSI 150
ANSI 300
Medium
pressure steam,
condensate and
process water
3 Piece
17.5
DN65
M31S ISO
DN50
to
DN200
M20S
DN25
to
DN150
M21S ISO
M40S ISO
M10H ISO
2 Piece
11.6
190
17.5
208
High pressure
steam
2 = Zinc plated carbon steel body
RB and FB
3 = Stainless steel body
4 = Stainless steel body, nuts and bolts
Forged
RB
FB
Cast
RB
Cast
RB and FB
Forged
RB
2
3
4
2
ASTM A105
ASTM A182
F316L
ASTM A216 or
DIN 1724
3 ASTM A351 or
DIN 1724
2 ASTM A216
3 ASTM A351
2
3
4
2
3
2
3
ASTM A105
ASTM A182
F316L
DIN 1724
ASTM A351
ASTM A216
ASTM A351
PN16
ANSI 150
ANSI 300
FB
Cast
RB
Cast
2 ASTM A216
3 ASTM A351
(PN40 flanges only)
1 Piece
208
ANSI 150
ANSI 300
PN40
DN15
to
DN100
1 Piece
17.5
208
PN40
RB
Cast
2 DIN 17245
3 ASTM A351
DN25
to
DN150
1 Piece
17.5
208
ANSI 150
ANSI 300
RB
Cast
2 ASTM A216
3 ASTM A351
250
BSP, BSPT,
NPT,
SW, BW,
PN40
Forged
2 ASTM A105
(stainless steel
available on request)
DN6 to
DN40
39
3 Piece
RB and FB
RB
M20H
DN25
to
DN150
1 Piece
39
250
PN40
ANSI 150
ANSI 300
RB
Cast
M31H
DN50
to
DN200
2 Piece
39
250
PN16
ANSI 150
ANSI 300
FB
Cast
M60V
DN15
to
DN100
3 Piece
7
170
Tri-clamp
Tube imperial,
ISO and DIN
RB*
Forged
4 ASTM A182F
316L
M60G
DN15
to
DN100
3 Piece
8.5
177
Tri-clamp
Tube imperial,
ISO and DIN
RB *
Forged
4 ASTM A182F
316L
KBV20
ABV20
DN25
to
DN65
1 Piece
17.5
208
ANSI 150
ANSI 300
PN40
RB
Cast
2 ASTM A216
3 ASTM A351
(PN40 flanges only)
Clean steam
Boiler blowdown
RB =
Reduced bore
17.5
DN50
6
BSP, BSPT,
NPT, SW, BW,
ANSI 150
ANSI 150
ANSI 150
ANSI 300
PN16
F1 & F4 / F5
DN65
DN6 to
DN50
Body material
FB =
Full bore
Low
pressure steam,
M31V ISO
condensate and
process water
M10S
M10S ISO
Bore
*Note: The M60 is also available in FB version upon request.
2 ASTM A216
3 ASTM A351
(PN40 flanges only)
2 ASTM A216 or
DIN 1724
3 ASTM A351 or
DIN 1724
How to order
Internals
Virgin
PTFE
AISI 316
AISI 316
AISI 316
AISI 304
AISI 316
AISI 420
AISI 316
PDR 0.8
Virgin
PTFE
E
Zinc plated
carbon steel
Actuation
X
•
X
• •
To select and order your valves use the information
shown opposite and the following short codes,
as shown in the example below.
Example chosen:
A ball valve is required for a medium pressure steam application,
where pressure will not exceed 17.5 bar g. The pipeline size will
be 50 mm. The ball valve body material is to be zinc plated forged
carbon steel having full bore capability and a self - venting ball.
Ball valve selection example:
Valve size:
DN6 to DN200.
Carbon
R-PTFE Zinc plated
Graphite carbon steel
Zinc plated
carbon steel O
Antistatic
PDR 0.8
R-PTFE or Stainless
steel
PDR 0.8
L
X
Automatic
AISI 316
AISI 304
AISI 316
AISI 420
Zinc plated
Antistatic carbon steel O
R-PTFE or Stainless
steel
E
Manual
Virgin
PTFE
Lever nuts
and bolts
L
Self-venting
AISI 316L
Stem
seals
Options
Extended
stem
Lockable
handle
Seats
Oval handle
Ball
and
stem
O
E
X
• •
DN50
Valve model:
L
E
Carbon
R-PTFE Zinc plated
Graphite carbon steel
X
• •
M10S, M20S, M21S, M31S, M40S.
X
• •
Body material:
DN50
C/S = 2, S/S = 3, All S/S = 4.
DN50
Antistatic
PDR 0.8 PTFE and Zinc plated
graphite carbon steel
E
X
• •
M10S
M10S
2
Port: (required for M10 only)
Reduced bore = RB, Full bore = FB.
AISI 316
AISI 316
AISI 316L
PDR 0.8
Antistatic Zinc plated
R-PTFE carbon steel
PDR 0.8
Carbon
R-PTFE Zinc plated
Graphite carbon steel
PEEK
PEEK
Zinc plated
carbon steel
or Stainless O
steel
PEEK
Zinc plated
carbon steel
(Hardness)
AISI 316
(Hardness)
PEEK
AISI 316
PEEK
PEEK
Zinc plated
carbon steel
AISI 316L
Virgin
PTFE
Carbon
R-PTFE
Graphite
Stainless
steel
AISI 316
Glass fibre Carbon
R-PTFE R-PTFE
AISI 316L (Cavity
filler
on request) Graphite
Stainless
steel
AISI 316
(Hardness)
(Hardness)
AISI 316
(Hardness)
(Cavity filler
on request)
Antistatic
PTFE
and Zinc plated
PDR 0.8
Graphite carbon steel
X
• •
DN50
M10S
2
FB
2
FB
ISO version:
E
X
• •
DN50
M10S
ISO
Options:
L
E
X
• •
Oval handle = O,
Lockable handle = L,
Extended stem = E, Self - venting = X
DN50
E
E
X
X
• •
• •
• •
• •
X
• •
M10S
2
FB
ISO
X
Valve connections:
BSP, BSPT, NPT, SW, BW, PN40, ANSI 150, ANSI 300.
Note: For clean steam valves consult Spirax Sarco.
DN50
M10S
2
FB
ISO
X
PN40
ISO
X
PN40
How to order example:
DN50
M10S
2
FB
1 off Spirax Sarco DN50 M10S2FB ISO X ball valve
having zinc plated forged carbon steel body material,
a full bore port and a self-venting ball. Connections are
to be flanged PN40.
For further details please refer to the
Technical Information Sheets.
7
Typical applications with ball valves
in the steam and condensate loop
Pressure reducing station
Steam main
terminal ends
Flowmetering
Steam to water
heat exchanger packages
Boiler blowdown
automatic or manual
Process vessels
automatic heating
Condensate pumping sets
mechanical and electrical
Process and heating control
high temperature
protection
Some of the products may not be available in certain markets.
Spirax-Sarco Limited, Charlton House,
Cheltenham, Gloucestershire, GL53 8ER UK.
Tel: +44 (0)1242 521361 Fax: +44 (0)1242 573342
E-mail: Enquiries@SpiraxSarco.com
Internet: www.SpiraxSarco.com
© Copyright 2005
8
Spirax Sarco is a registered trademark of Spirax-Sarco Limited
SB-S39-07
ST Issue 2