Cage double-seat control valve

Size: DN10-600(3/8”-24”)
Bonnet: standard ,heat dissipation ,cryogenic ,bellows
Characteristic: equal percentage ,linear quick open
Pipe connection: flange,butt welding type
Actuator: pneumatic diaphragm actuator,pneumatic piston actuator,electric actuator



Cage double-seat control valve adopts the cage guided structure and pressure balanced plug. this kind of control valve adopts the cage double-seat structure and is mainly used in applications that do not have high requirements for shut-off class. As it adopts the double-seat structure, and the two sealing faces are metal seals, the temperature range is wider. The plug makes use of the pressure balanced structure, the opening and closing force is low and the media under service conditions with high differential pressure can be controlled through relatively low actuator thrust. It is widely used for fluid control on pipelines of middle and low temperatures and middle and low pressures that require good dynamic stability. With such features as good sealing performance, high allowable differential pressure, cage guiding, large guiding area, good stability and compact structure, it can realize fast replacement of trims on the line with high maintenance efficiency, saving manpower and time. The balanced plug structure makes sure that the actuator thrust required is the lowest.

Parameters of control valves

Trim features: cage guided
balanced trim structure
cage double-seat structure
Body type: straight-through type  /  angle type
Bonnet type: standard type
heat dissipation type
cryogenic type
bellows type
Flow characteristic: equal percentage
quick open
Size: DN40-400(1.5”-16”)
Pressure class: PN1.6、4.0、6.3Mpa(ANSI 150、300、600LB)
Leakage class: ASME B16.104 Ⅲ(standard type metal seat)
Pipe connection type: flange type
butt welding type
Applicable temperature range: -196C° ~ 550C°
Actuator type: pneumatic diaphragm actuator
pneumatic piston actuator
electric actuator