Cast steel WCB WCC Pnuematic control valve

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Cast steel WCB WCC Pnuematic control valve Feature

Cast steel WCB WCC Pnuematic control valve is designed on base of Class 150 300 600 for pressure,temperature,flow control in the industry system, Cast steel WCB WCC Pnuematic control valve adopts double sealing surface spool structure, applicable for low leakage requirement;Cast steel WCB WCC Pnuematic control valve adopts pressure-balanced spool structure, allowed large pressure differential, low noise and steady and reliable actuation

Pneumatic control valve Body type:	straight through casting globe type
Spool type:	balanced cage guided sleeve type
Nominal size:	NPS 3/4〞~ 8〞
Nominal pressure:	CLASS 150LB ~ 600LB
Connection: flange:	RF RTJ
Welding:	SW、BW
Flange dimension:	According to to IEC 60534
Cast steel WCB WCC Pnuematic control valve Bonnet type:	Ⅰ:standard type（-20℃~230℃） Ⅱ:Radiator type: （-45℃~ high than 230℃ occasion） Ⅲ:Low temperature extended type（-196℃~ -45℃） Ⅳ:Bellow seal type Ⅴ:Warm insulation Jacket type
Packing:	V type PFTE packing, flex. graphite packing, etc.
Gasket:	Metal graphite packing
Control valve Actuator:	Pneumatic: multi-spring diaphragm actuator, piston type actuator.

Pneumatic control valve Flow characteristic	Linear, equal percentage, quick open
Allowable range	50: 1
Rated Cv value	Percentage CV10~1400 ，linear CV11~1500
Cast steel WCB WCC Pnuematic control valve Allowable leakage	Metal seal:Ⅱgrade（0.5% rated capacity） Soft seal: V grade Leakage standard: GB/T 4213
Cast steel WCB WCC Pnuematic control valve Performance
Intrinsic error (%)	±1.0
Return difference(%)	≤1.0
Dead zone(%)	≤1.0
Difference from beginning to end point(%)	±2.5
Rated travel difference(%)	≤2.5

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