Wafer Knife Gate Valve

Wafer Knife Gate Valve Specification  

Wafer flanged body

Beveled knife on metal or resilient seats

Uni-direction and bi-direction design

Rising stem design

Bolted bonnet design for non-leakage through packing chamber

Deflection cone for protecting seat ring

Wafer Knife Gate Valve Advantage

Available in various designs, one-piece body and two-piece bodies, rising Stem and non-rising stem, uni-direction and bi-direction structures, resilient and metal seat rings, bonnetless and bolted bonnet designs. For optional designs, deflection cone could divert the flow of abrasive slurries and protect valve seat from abrasion, V port disc and through conduit design are used for throttling service, per customers' requirements

Application 

Petroleum, chemical engineering, metallurgy, light industry, power station, city building, water supply system, oil transportation, gas feeding, natural gas and long distance transportation pipes projects. 

Applicable Standard 

Design & Manufacture according to : MSS SP-81, MSS SP-135,  ASME B16.34, etc ;

Face to Face according to : MSS SP-81, MSS SP-135, ASME B16.10, DIN3202, etc ;

Flange Dimensions according to : ASME B16.5, ASME B16.47, MSS SP-81, etc ;

Pressure & Temperature according to : ASME B16.34;

Test & Inspection according to : MSS SP-81, API 598;

Visual Inspection according to : MSS SP-55;

Marking according to : MSS SP-25.