Single seated control valve Features:

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, LCB,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℃

Single seated 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) 

ZJHP type pneumatic diaphragm single seated control valve adopts top guide structure, This type of valve has a compact structure, small pressure drop loss, large flow rate, wide adjustable range, and high accuracy of flow characteristics, and complies with the IEC60534-2-1-2011 standard. The leakage of the regulating valve complies with ANSI FCI 70-2-2013 standard. The structure adopts a pressure cage type to facilitate quick replacement of the valve spool and valve seat. At the same time, the valve seat sealing line is double-sided, extending the service life of the valve.

Single seated control valve is equipped with a multi-spring diaphragm or cylinder actuator, which has a compact structure and large output force.