Control systems Control valves
4
Pressure/temperature limits
Pressure psi g
0
145 232 290 360 435
580
B
C
D
A
392 356 302 212 122
A - A PN10 B - B PN16 and ASME 150
Steam saturation curve
C - C PN25 D - D PN40
32 14
A B
C
D
Pressure bar g
The product must not be used in this region or beyond the body design conditions quoted in the table below as damage to the internals will occur.
High temperature stem seals (Option H ) are required for use in this region.
DN15 - DN25 ( ½ " - 1")
PN40 PN25 PN16
DN32 and DN40 (1 ¼ " - 1 ½ ")
Screwed, butt weld and flanged EN 1092
4.1 159
Body design conditions
DN50 (2")
DN15 - DN50 ( ½ " - 2")
Flanged ASME
Class 150
Maximum design pressure Maximum design temperature Minimum design temperature Maximum operating pressure for saturated steam service
Refer to the graph above
200 °C -10 °C
392 °F
14 °F
Standard seals
9 bar g @ 180 °C 130 psi g @ 356 °F 14.5 bar g @ 200 °C 210 psi g @ 392 °F 180 °C @ 9 bar g 356 °F @ 130 psi g 200 °C @ 14.5 bar g 392 °F @ 210 psi g
High temperature seals - Option H
Standard seals
Maximum operating temperature
High temperature seals - Option H
( Note: For lower operating temperatures consult Spirax Sarco) -10 °C
Minimum operating temperature
14 °F
Maximum Minimum
60 °C -10 °C
140 °F
Ambient temperature limits
14 °F Note: Protection from environmental influences (e.g. UV radiation, humidity, chemicals) is required. Ensure that adequate shelter is
provided for outdoor installations Maximum differential pressure
(see page 6)
Designed for a maximum cold hydraulic test pressure of:
1.5 x PMA (PN rating)
Maximum test pressure is equal to the maximum differential pressure
Temperature degredation
Media temperature °F
158 140 122 104 86 68 50 32 0 20 40 60 80 100 120 140 160 180 200 220 32 68 104 140 176 212 248 284 320 356 392 428 70 60 50 40 30 20 10 0
Media temperature °C
TI-P373-13 CMGT Issue 16
Page 3 of 16
PF6 Stainless Steel Piston Actuated On/Off Valves
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