PFFY 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 body bushing, body and seat.

•The surface of gate and seat is sprayed with tungsten carbide, 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.

•The driver is equipped with mechanical locking device to prevent 

misoperation

•Working Pressure: 2000PSI～20000PSI

•Nominal Bore: 2.1/16"～7.1/16" (52mm~180mm)

•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、

•Specification level: PSL1～3G

•Performance Requirement: PR1～2