Product Description
PFF Series Gate valve
•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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