Control valves
Control valves
Screwed
(BSP or NPT)
Butt weld
Flanged
(EN 1092 or
ASME)
Sanitary clamp
PF61G-1NC
PF62G-1NC PF65G-1NC
PF61G-2NC
PF62G-2NC PF63G-2NC PF65G-2NC
PF61G-3NC
PF62G-3NC PF63G-3NC PF65G-3NC
PF61G-1NO
PF62G-1NO PF65G-1NO
PF61G-2NO
PF62G-2NO PF63G-2NO PF65G-2NO
PF61G-3NO
PF62G-3NO PF63G-3NO PF65G-3NO
PF61G-1BD
PF62G-1BD PF65G-1BD
PF61G-2BD
PF62G-2BD PF63G-2BD PF65G-2BD
PF61G-3BD
PF62G-3BD PF63G-3BD PF65G-3BD
4.1.105
Steam
saturation
curve
A
B
C
D
Available range
Valve action
NC - Normally Closed
(flow over seat)
NO - Normally Open
(flow under seat)
BD - Bi-Directional normally closed
(flow over or under seat)
Pressure / temperature limits
Threaded
spigots
PF60G-1NC
PF60G-2NC
PF60G-3NC
PF60G-1NO
PF60G-2NO
PF60G-3NO
PF60G-1BD
PF60G-2BD
PF60G-3BD
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A
B
C
D
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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.
A-A PN10
B - B PN16 and ASME 150
C-C PN25
D-D PN40
DN15 - DN25 (1⁄2" - 1")
DN32 and DN40 (11⁄4" - 11⁄2")
DN50 (2")
DN15 - DN50 (1⁄2" - 2")
DN15 - DN50
Body design conditions
Maximum design pressure
Maximum design temperature
Minimum design temperature
Maximum operating pressure for
saturated steam service
Maximum operating temperature
Minimum operating temperature
Ambient temperature limits
Maximum differential pressure
Screwed, butt weld, threaded spigots and
flanged EN 1092
Flanged ASME
Sanitary clamp compatible connections
Standard seals
High temperature seals - Option H
Standard seals
High temperature seals - Option H
PN40
PN25
PN16
Class 150
PN10
Refer to the graph above
200 °C
-10 °C
9 bar g @ 180 °C
14.5 bar g @ 200 °C
180 °C @ 9 bar g
200 °C @ 14.5 bar g
-10 °C
60 °C
-10 °C
(see page 4)
1.5 x PMA (PN rating)
(Note: For lower operating temperatures consult Spirax Sarco)
Maximum
Minimum
Designed for a maximum cold hydraulic test pressure of:
Maximum test pressure is equal to the maximum differential pressure
Page 2 of 8
TI-P373-13 CH Issue 10
PF6 Stainless Steel Piston Actuated On/Off Valves
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