Figure 193

Figure 193

Bonneted Knife Gate Valve


  • Bonneted knife gate valves are ideally suited to reduce fugitive emissions and packing leakage.
  • Cast stainless steel body, gland and yoke.
  • Wiper between body and bonnet prevents solids from entering bonnet.
  • Bonnet design pressure same as valve pressure rating of 150 PSI.
  • Standard TFE lubricated synthetic packing (TLSP) rated for 500° F and a pH range of 3-11.
  • Heavy duty body design resists deflection from line loads and internal pressure.
  • Gate design withstands full 150 PSI rated pressure as required by MSS SP-81.
  • Body cavity, seat configuration, and beveled gate design provide shut off capa-bility in thick media such as pulp stock and slurries, or solid media like pellets and powders.
  • Heavy duty cast stainless steel yoke prevents bending or twisting under ex treme loads.
  • Easy conversion from handwheel operator to pneumatic or hydraulic cylinder, bevel gear, or electric motor operator using existing cast yoke.
  • Enclosed bronze stem bushing reduces operating torque and protects the stem bushing in harsh environments.
  • Hard faced seat available to prevent galling in high cycle and/or high end pres-sure or abrasive applications.
  • V-Port or O-Ring resilient seats available to suit specific applications. 
  • Precision machined stainless steel gate provides superior seating capability.
  • Stainless steel stem provides corrosion resistance.
  • Flange drilling meets ANSI B16.5-150 LB standards with all tapped holes and serrated gasket faces.
  • Full port ID.
  • MSS SP-81 Stainless Steel, Bonnetless, Flanged Knife Gate Valves.
  • AWWA C520-10 Knife Gate Valves, 2" - 96".

Datasheet          Specifications