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PFFA 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, body and seat.
•  The surface of gate and seat is weld overlay with hard alloy, which has feature of corrosion resistance and washing resistance.
•  The bonnet and stem designed with back seal, can replace stem sealing under pressure.
•  One side of bonnet is designed with sealant injection in order to supply sealant and improve seal and lubrication performance of gate and seat.
•  Can 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
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