| • Full bore design eliminates efficiently pressure drop and vortex, eliminates washing by solids in fluid.
• Special seal type lower switch torque.
• Mental-to-mental seal is used between bonnet and body, gate and seat rising.
• Mental-to-mental seal between gate and seat, and the surface is weld overly with hard alloy, which has feature of corrosion resistance and washing resistance.
• Retainer plate fix seat ring insuring good stability.
• The 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 |
