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PFF Series Gate valve

*  Full bore design eliminates efficiently pressure drop and vortex, eliminates washing by solids in fluid.

*  Mental-to-mental seal is used between bonnet and body, gate and seat, seat and body.

*  The surface of gate and seat is welding overlay with hard alloy, which has feature of corrosion resistance and washing resistance.

*  The balanced stem can balance the stem load, reduce load of stem thread and bearing to decrease operating torque.

*  The bonnet and stem are designed with back seal, which can replace stem sealing under pressure.

*  One side of bonnet is designed with sealant injection valve.

*  Rising stem structure can indicate open and close of valve.

*  Complete with different pneumatic (hydraulic) actuator upon user’s requirements.

*  Working Pressure: 2000PSI～20000PSI

*  Nominal Bore: 1.13/16"～9" (46mm～230mm)

*  Working Medium: oil、natural gas、mud and gas containing H2S、CO2

*  Working Temperature: -46°C～121°C（Class LU）

*  Material Class: AA、BB、CC、DD、EE、FF、HH

*  Specification level: PSL1-4

*  Performance Requirement: PR1-2