Operational command device self-reliance type single-seat pressure regulator (hereinafter referred to as for nitrogen valve), the valve does not need additional energy, energy (gas) modulated medium itself is used as the source of power, introducing command device detection enforcement agencies, to control the pressure regulating valve valve core position, change the medium flow through the valve, keep the valve after pressure at a constant value. The characteristics of the valve: the pressure setting value can be realized on the controller, and can be adjusted in the operation, so it is convenient, quick and easy to save. The control precision is about twice as high as the normal pressure control valve.
Standard technical parameters
Body type: straight/tee casting ball valve
Nominal size: DN20 - DN150
Rated pressure: PN16
Connection mode: flange: FF, RF, RJ, etc
Threads: DIN, NPT, RC, BSP, G, etc
Welding: GB12224-89
Sealing cover form: PN16 convex surface
Materials: WCB, WCC, WC6, 304, 316, 304L, 316L
On the cover: standard (5℃~ + 70 ℃)
High temperature type no condenser (< 200℃)
Gland form: pressure plate type
Fill: V type fluorine teflon, flexible graphite
Valve components
Valve core form: single cylinder, metal seal, soft seal, quick opening characteristics
Valve core material: 304, PTFE
Actuator
Form: film type
Diaphragm material: reinforced polyester fabric with a rubber sandwich
Signal interface: internal thread M16 x 1.5
Command
Form: film type
Diaphragm material: reinforced polyester fabric with a rubber sandwich
Signal interface: internal thread M16 x 1.5
Performance
Rated KV: reference table
Traffic characteristics: fast
Action: post-valve pressure control
Pressure adjustment range: reference table
Pressure control accuracy: plus or minus 2.5%
Leakage level: metal seal: less than 0.01 (ANSI B16.104-1976IV
Soft seal: less than 0.00001%