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Pneumatic Multi-Stage Pressure drop control valve
  • Pneumatic Multi-Stage Pressure drop control valve

Pneumatic Multi-Stage Pressure drop control valve adopts the sleeve guided structure and pressure balanced plug. It is mainly used in service conditions with high differential pressure and applications that produce flash evaporation and cavitation

Details

Pneumatic Multi-Stage Pressure drop control valve

Pneumatic Multi-Stage Pressure drop control valve adopts the sleeve guided structure and pressure balanced plug. It is mainly used in service conditions with high differential pressure and applications that produce flash evaporation and cavitation. According to different parameters, it is designed with different pressure drop cages that form a multi-stage pressure drop trim. The cages designed according to different service conditions ensure the occurrence of flash evaporation and cavitation in the valve is eliminated. Throttling is carried out from the time when the medium contact the first cage, and the high differential pressure at the inlet is gradually reduced after several times of throttling. Thus it is effectively ensured that the pressure is always above the saturated vapor pressure when the medium flow in the valve, and the occurrence of flash evaporation and cavitation is eliminated, so that the service life of the control valve is prolonged under severe service conditions.

 

 

Specifications of Pneumatic Multi-Stage Pressure drop control valve

Trim Features:    Sleeve Guided Type, Balanced Trim Structure, With balanced seal ring structure

Body Type:       Straight-Through Type, Angle Type

Bonnet Type:     Standard Type, Heat Dissipation Type ( Or say Heat Radiation Type), Cryogenic Type, Bellow Type

Flow Characteristic:  Equal Percentage, Linear, Quick Open

Shut-Off Class:     ASME B16.104 V (Standard Metal Seat),

                 ASME B16.104 VI( Shut-off Soft Seat)

Pipe Connection Type: Flange Type, Butt welding Type

Applicable Temperature Range: -196°C -  570 °C ( Double-Seat Structure),

                          -30°C—260°C( Single-Seat Structure)

Actuator Type:    Pneumatic Diaphragm Actuator,

                Pneumatic Piston Actuator,

                Electric Actuator.

Sectional Drawing for Pneumatic Multi-Stage Pressure drop control valve

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