What Is COVNA Pneumatic Actuated Knife Gate Valve?

Pneumatic actuated knife gate valve is a relatively complex automatic control, which is composed of a variety of pneumatic components and valve bodies. It is suitable for medium pipelines such as syrup, paper pulp, sewage, coal slurry, ash, dust, and slag-water mixture.

In the past, such as in paper industry applications, viscous pulp can get stuck in the valve seat of ordinary gate valve and prevent the valve from closing, causing the valve seal to leak, but the knife gate valve is specially designed so that the valve has a sharp edge, which can be cut open viscous media and seal to prevent leakage.

Pneumatic actuators are the most affordable and economical way to drive a knife gate valve. Because knife gate valves are only suitable for on-off use, not media modulating applications, the design features are ideal for installing pneumatic actuators.

Pneumatic knife gate valves are mostly used in occasions requiring quick shut-off or opening, the gate has a shearing function, which can scrape off the adhesive on the sealing surface and automatically remove the sundries. Due to this special design, pneumatic knife gate valves are very effective in applications involving viscous fluids, slurries and other media.

In this article, I will introduce to you the advantages and characteristics of COVNA Pneumatic Knife Gate Valves

In COVNA, pneumatic knife gate valves are available in Cast iron, carbon steel and stainless steel. The pneumatic actuator has linear series and an imported actuator series to choose from.

The advantages of our pneumatic knife gate valve are ultra-thin design, full diameter flow, not easy to leak, easy disassembly and assembly, movable sealing structure, strong cutting force, good sealing performance, strong wear resistance, automatic compensation, long life, not easy to accumulate and low torque.


Applications Of Pneumatic Knife Gate Valves

  • Cement plants
  • Solid waste treatment
  • Paper and pulp
  • Wastewater treatment

If you have any demand for pneumatic knife gate valves, feel free to consult us at sales@covnaactuator.com for a suitable valve solution.