•  Full-bore design, effectively eliminate the pressure drop and eddy current, slow flow of solid particles in the valve.
•  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.
•  With balance tail stem that can balance stem load , reduce stem threaded and bearing load , and reduce operation torque .
•  There is back seal structure on bonnet and stem so that replace stem seal ring with pressure