Control systems Control valves
4
Valve selection guide Valve size
DN15 ( ½ "), DN20 ( ¾ "), DN25 (1"), DN32 (1 ¼ "), DN40 (1 ½ ") and DN50 (2")
DN25
Valve type
P
P
= Piston valve
Valve characteristic
F
F
= Fast opening
Body material 6
6
= Stainless steel
1
= Screwed
BSP or NPT
Note : state pipeline connection when ordering:
- DIN 11850 pipe - ASME B 36.10/ISO 65 pipe
2
= Butt weld
Connections
3
3 4
= Flanged
EN 1092 or ASME Class 150 (welded on flanges)
=
Valve plug seal G
G
= Modified PTFE G500 soft seat
Blank = PTFE + 25% carbon graphite filled PTFE + FKM chevron (standard)
Stem seal
= 25% carbon graphite filled PTFE + FKM chevron Note: Option H is not available for valves fitted with Type 1 actuators.
H
1 2 3
= 45 mm diameter (1.77 inches)
Actuator type
2
= 63 mm diameter (2.48 inches)
4.1 171
= 90 mm diameter (3.54 inches)
NC
= Normally Closed
Valve position
NO
NC
= Normally Open
BD
= Bi-Directional
Blank = No options required
Position module with mechanical switch Position module with inductive switch
Change-over contacts, max. tension 230 Vac, Max. current 6 A
Provides indication of open and closed valve position through an inductive or mechanical switch. Available on all actuators types.
A
=
PNP, supply 14 - 12 Vdc power 13 mA max.
B
=
Provides indication of open or closed valve position through a magnetic reed switch with volt free contacts. Voltage (V) = 500 V, Current ( I ) = 0.5 A, Power (P) = 30 VA. Available on Type 2 and Type 3 actuators with suffix 'I' if this option is required. Maximum rating: Provides manual control of maximum flow through the valve. Can also provide manual shut-off on normally open valves. Available on Type 2 and Type 3 actuators with suffix 'R' if this option is required.
Optional
I
= Travel switch
R
= Flow regulator
Note: Shaded areas represent fixed parameters
Valve selection guide example
DN25-P-F-6-3-G-
- 2 - NC -
- Flanged EN 1092 PN40
TI-P373-13 CMGT Issue 16
Page 15 of 16
PF6 Stainless Steel Piston Actuated On/Off Valves
Powered by FlippingBook