Type:Bellow seal control valve

Size:DN20~DN600 1/2”-24”

Pressure:PN1.6MPa~ PN42 MPa 150LB-2500LB JIS 10K ~JIS 40K

End connection:RF RJ ,BW

Material:WCB，WC6，LCB ,CF8，CF8M，CF3M, 904L, 316Ti , A105 ,F304,F316, Duplex   stainless steel, Monel, Hastelloy, (Special Materials on Request)

Bonnet type: Normal type（P）：－45～＋250℃

Extend type with I type-High temperature type（EI）：＋250～＋566℃

Extend type with EII type--cryogenic type（EII）：－45～－196℃

ZJHM Pneumatic Control Valve Trim type:

Pressure-balanced spool

Flow characteristics: Equal Percentage ,Linear type

Leakage class:class IV(stand type ) class V, class VI

Adjustable ratio:50:1

Actuator type :

Pneumatic actuator:Pneumatic diaphragm actuator or pneumatic piston actuator

Air supply: 3-7bar

Failure position :Normally closed (NC),Normally open(NO)

Bellows sealed control valve control low temperature and high temperature medium pressure fluids. It is a pressure balanced control valve. The valve body has a compact structure and an S-shaped fluid channel. It is also equipped with a guide wing to improve the balanced flow of fluid around the sleeve, resulting in small pressure drop loss, large flow rate, wide adjustable range, and high accuracy of flow characteristics. The control valve has good dynamic stability, low noise and little cavitation corrosion. The upper valve cover adopts a bellows sealing structure, which is suitable for extremely toxic, flammable, explosive, volatile and rare precious metal media. In addition, the valve can also be used in vacuum applications.