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Electric Steam temperature control valve

Electric Steam temperature control valve Working principle   .Electric Steam temperature control valve material list
Component name Control Valve Material
Body/Bonnet WCB/WCC/WC6/CF8/CF8M/CF3M
Valve spool/Seat 304/316/316L(overlaying stellite alloy)
Packing Normal:-196~150℃ is PTFE,RTFE,>230℃ is flexible graphite
Bellows 304/316/316L
Gasket Normal:Stainless steel with flexible graphite,Special:Metal tooth type gasket
Control valve stem 2Cr13/17-4PH/304/316/316L
Electric Steam temperature control valve Performance
Electric temperature control valve Flow characteristic Linear, percentage, quick open
Allowable range 50: 1 (CV<6.3 30: 1)
Rated Cv value Percentage CV1.6~630 ,linear CV1.8~690
Electric temperature control valve Allowable leakage Metal seal:  IV grade(0.01% rated capacity) Soft seal:  VI grade(foam grade) Leakage standard:  GB/T 4213
Electric steam temperature 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
Electric Steam temperature control valve parameter
Electric temperature control valve        Type\ Method Electric actuator
DAL-30 series
Intelligent integrated type
Usage Regulating
Air supply pressure or Power supply voltage Power: AC 200V±10%  50Hz Or Power:  AC 380V±10% 50Hz
Connector Normal type:  cable inlet 2-PF(G1/2〞) Explosive proof:  Protection jacket PF(G3/4〞)
Direct action Input signal increase, stem descend, valve close.
Reaction Input signal increase, stem ascend, valve open.
Input signal Input/output4~20mA.DC
Lag ≤0.8%FS
Linear type +1%FS
Environmental temperature Standard type: -10℃~+60℃ With space heater : -35℃~+60℃ Explosive proof: -10℃~+40℃
Electric temperature control valve Accessories Space heater (normal type) Non-standard accessories, need special customized notes.

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