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Figure 76 Knife Gate Valve
Metal Seat Knife Gate Valves
Solid one piece cast body in corrosion resistant stainless steel.
Compact wafer configuration to Tappi standard face to face.
Gate and seat are machined and fitted to provide shut off in one direction.
Bonnetless, outside screw and yoke, non-rising handwheel, rising stem.
Available in sizes from 2" to 24" diameter.
150 PSI working pressure.
Flanges match ANSI B16.5-150 lbs. standard with all tapped holes, serrated gasket faces.
Designed to handle dense mixtures of stock and slurries. The shearing action of the knife gate cuts through solids and cleans the seat as it closes.
Smooth flow--non-clogging FULL PORT design.
Meets Tappi standard TIS 405-8 for stainless steel bonnetless, flanged, wafer knife gate valves.
Factory installed V-seat inserts available for metering or throttling service.
L-Series Knife Gate Valves
Available in metal seat (Fig 76) and resilient seat (Fig 77).
HEAVY DUTY cast ductile iron body, packing gland and yoke.
O-Ring resilient seat available on Fig 76.
Sizes include 14", 16", 18", 20" and 24".
TFE lubricated synthetic packing rated for 400 F with a PH range of 3-11.
Designed and tested to MSS-SP-81 dimensions and specifications.
Heavy duty Lug body design to resist deflection from line loads and internal pressure. ANSI B16.5-150 drilled & tapped lugs.
Fabricated STAINLESS STEEL LINER.
STAINLESS STEEL GATE for corrosion resistance and durability.
STAINLESS STEEL STEM for corrosion resistance.
EASY CONVERSION from handwheel operator to cylinder, bevel gear or electric motor operator using standard cast yoke.
ENCLOSED BRASS STEM BUSHING provides reduced operating torque and protection of the stem bushing from harsh environments.
Fig 76 with METAL TO METAL SEAT and unidirectional beveled gate which provides shut off as required by MSS-SP-81. Capable of handling thick media such pulp stock or slurries, as well as solid media such as pellets or powders.
Fig 77's perimeter resilient seat provides DRIP TIGHT BI-DIRECTIONAL SHUT OFF
HEAVY DUTY cast ductile iron yoke will not bend or twist under extreme loads.
Valves are designed for 150 PSI CWP pressure rating.
Figure 92 Slide Gate Valve
Fabricated stainless steel body ideally suited for dense or abrasive media, both wet and dry.
Stainless steel gate, seat and raised faces.
Heavy duty designed body to resist deflection from line loads and internal pressure.
Gate designed to withstand full 150 PSI rated pressure as required by MSS SP-81.
Body cavity, seat configuration and beveled gate designed to provide shut-off capability in thick media such as pulp stock slurries, or with solid media such as pellets or powders.
Valve seat face is protected by gate in both open and closed positions.
Full range of operators available including air cylinder, bevel gear and electric motor operators.
Enclosed brass stem bushing provides reduced operating torque and protection of stem bushing from harsh environments.
Can be manufactured in special materials such as ALLOY 20, HASTELLOY, TITANIUM and MONEL for severe services.
O-ring resilient seat available.
Precision machined stainless steel gate for corrosion resistance, durability and superior seating capability.
Stainless steel stem for corrosion resistance.
Gate wipers available in packing to provide gate support, stabilize packing seal and minimize packing damage from materials that may stick to the gate.
Designed and tested to MSS SP-81 dimensions and specifications.
Hard faced seats and hardened gates available to prevent galling or wear in abrassive applications.