44
Control systems Control valves
∆ PMX - Maximum differential pressures for PF6 piston actuated valves * Notes: 1. Maximum differential pressure for saturated steam service is 11.5 bar g (167 psi g) and 14.5 bar g (210 psi g) for high temperature valve versions. 2. ASME flange connections are limited to ASME 150 pressure rating. PF6_G-NC (Normally closed)
Actuator diameter (mm)
Pilot Pressure Minimum Maximum bar psi g bar psi g
Maximum differential pressure (see Notes at the top of this page)
Flow direction (port 1 to 2)
Model
Valve size
mm inches
bar
psi g
DN15 - ( ½ ")
PF6_G-1NC
45
1.77
over seat
16
230
1.8 26 10 150
DN20 - ( ¾ ")
DN15 - ( ½ ")
3.9 57 10 150
DN20 - ( ¾ ")
20
290
4.6 67 10 150
DN25 - (1")
5.2 75 10 150
PF6_G-2NC
63
2.48
over seat
DN32 - (1 ¼ ") DN40 - (1 ½ ")
5.7 83 10 150
16
230
8.8 128 10 150
DN50 - (2")
11
160
7.8 113 10 150
4.1 162
DN25 - (1")
20
290
3.0 44
8 115
DN32 - (1 ¼ ") DN40 - (1 ½ ")
3.0 44
8 115
PF6_G-3NC
90
3.54
over seat
16
230
4.0 58
8 115
DN50 - (2")
5.8 84
8 115
PF6_G-NO (Normally open)
Actuator diameter (mm)
Pilot Pressure Minimum Maximum bar psi g bar psi g
Maximum differential pressure (see Notes at the top of this page)
Flow direction (port 1 to 2)
Model
Valve size
mm inches
bar
psi g
DN15 - ( ½ ")
PF6_G-1NO
45
1.77
under seat
16
230
1.8 26 10 150
DN20 - ( ¾ ")
DN15 - ( ½ ")
2.8 41 10 145
DN20 - ( ¾ ")
4.5 65 10 145
DN25 - (1")
5.7 83 10 145
16
230
PF6_G-2NO
63
2.48
under seat
DN32 - (1 ¼ ") DN40 - (1 ½ ")
6.7 97 10 145
8.8 127 10 145
DN50 - (2")
8
175
9.6 139 10 145
DN25 - (1")
4.5 65
8 116
DN32 - (1 ¼ ") DN40 - (1 ½ ")
4.0 58
8 116
PF6_G-3NO
90
3.54
under seat
16
230
5.4 78
8 116
DN50 - (2")
7.0 101 8 116
TI-P373-13 CMGT Issue 16
Page 6 of 16
PF6 Stainless Steel Piston Actuated On/Off Valves
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