Knife type gate valve

Posted by freemexy on May 18th, 2019

knife gate valves is divided into plate type gate valve, knife type mud gate valve, knife type slag discharge gate valve, single clip type slag slurry gate valve and manual single clip type knife type gate valve.
Slab knife type gate valve is widely used in papermaking, petrochemical, mining, drainage, food and other industries, because of the use of knife-type gate, with good shear effect, the most suitable for pulp, powder, fiber and other difficult to control the fluid. Valve seats are available and can be automated with electric or pneumatic actuators according to field control requirements. Material: cast iron, carbon steel, stainless steel dimension range: DN50 ~ DN600 Max pressure: 1.0mpa.

When stainless steel ss304 ss316 slab knife type gate valve closed, sealing surface can only rely on the pressure of the media to seal, that is to rely on the pressure of the media to the other side of the valve seat to ensure sealing surface, this is self-sealing.
Stainless steel knife gate valve is a forced seal, that is, when the valve is closed, to rely on external force to force the gate to the seat, in order to ensure the sealing surface tightness. Most knife-type gate valves should be installed horizontally in the line.