•  Full-bore design, effectively eliminate the pressure drop and eddy current, slow flow of solid particles in the valve.
•  The unique sealing,make the switch torque greatly reduced
•  Between bonnet & body and gate & seat are adopt metal to metal seal
•  Between gate and seat are adopt metal to metal seal, Surface spraying (heap) welding hard alloy , has good abrasion resistance, corrosion resistance.
•  Seat ring is fixed with plate , keep well steadly
•  Stem has back seal structure so as to replace seal ring of stem with pressure
•  There is seal grease injection valve on bonnet side so as to repair seal grease , and provided seal and lubricate performance of gate and seat
•  It is match with all kind of pneumatic (hydraulic ) actuator as customers requirements
•  Working pressure ：2000PSI～20000PSI
•  Nominal bore ：1.13/16～9 (46mm～230mm)
• working medium : oil , nature gas , mud , consist of H2S CO2gas •  working temp.：-46℃～121℃（LU）
•  material：AA、BB、CC、DD、EE、FF、HH
•  PSL：PSL1～4
•  PR：PR1～2