Knife Gate Valve Technical Specifications

KOSEN Cast Knife Gate Valves are designed for on-off and throttling applications. They feature a cast body in 304, 316 or 317 stainless steel. The gate material is 304, 316 or 317 stainless steel. The packing gland is stainless steel for corrosion protection or coated carbon steel for noncorrosive service. The stem is stainless steel. The yoke is available in 316 stainless steel for corrosive service or carbon steel for noncorrosive service.

Knife Gate Valves are available in sizes 2-36" (DN50-DN900) with metal or resilient seated versions.A variety of actuator options are available including handwheels, chainwheels, bevel gears, levers, pneumatic and hydraulic cylinders and electric motors. A full complement of accessories is also offered.One-Piece Cast, Corrosion Resistant Body, The heavy duty, cast body provides corrosion and abrasion resistance on the toughest liquid slurry and dry material handling applications.

The cast gate guides at 3, 9, and 12 o'clock provide support for the moving gate and will not break off like welded guides. Cast gate jams at the bottom of the body hold the gate securely against the seat to assure positive shutoff. All valves are rated for full reverse pressure in the closed position. Raised-face body has drilled and tapped lugs in accordance with ANSI Class 125/150 dimensions.Full, round port design allows high flow capacity and minimum pressure drop. KOSEN valve seat I.D. is equal to the I.D. of standard 40 pipe.

Gates are available in 304, 316 or 317 stainless steel for corrosion resistance. They have a precision ground finish on both sides to prevent packing and seat damage. The beveled knife-like edge pushes aside or cuts through solids in the flow stream. To increase packing life and provide a superior seal, the gate edges are rounded. A strong investment cast clip complements KGC's robust construction. More threads per inch on the manual stem mean this valve requires lower handwheel rim-pull force.