Knife Valves
Knife Valves were developed for sludge and abrasive applications. They are often used especially in fluids containing abrasive particles. These valves are called knife valves because they interrupt the fluid flow with a knife (slide) perpendicular to the flow. This blade works by closing and opening vertically between two sealing rings. It is preferred that they operate fully open or fully closed. They are not suitable for precise flow control.
Knife valves are suitable for use in multi-fibrous fluids, for example in the paper industry and waste water lines. They provide full sealing with their one-piece body and elastomer (EPDM, NBR, NR) seat. Depending on their fluid properties, they can also be produced with a metal seat. They can have flywheels, gearboxes, chain wheels, pneumatic actuators and electric actuators.
General Information
Usage Areas
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General Information
Knife gate valves are used in points of systems where there is solid material such as mud, sediment, fibers in the fluid and precise flow control is not required. The blade (gate) moves perpendicular to the flow direction and is unaffected by solid particles that may restrict movement, unlike butterfly valves. Therefore, it is a preferred valve type in impure fluids.
Truevalve Knife Gate Valve
Body Material: AISI304 – AISI316 – GGG40 Spheroidal Cast Iron
Blade: AISI 304 – 316 Stainless Steel
Max. Operating Temperature: 150 °C
Max. Operating Pressure: 16 Bar
Control: Pneumatic – Piston – Electric Actuated Manual
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