knife gate valve with pneumatic actuator

In systems with plenty of dispersed particles, knife gate valves are typically utilized for the goals of shutting off the flow and isolating individual components. Knife gate valves are a very helpful piece of equipment for any situation involving abrasive, corrosive, or slurry fluids. The valves are easy to operate, require little maintenance, are lightweight, and have a low-pressure drop even when fully open. Additionally, the valves have a little pressure loss even when fully open. The flow of powders and grains can be controlled with the help of a slide gate valve, which is distinguished from a knife gate valve by the presence of a blade that is used to cut through clumps of viscous liquid. When knife gate valves were being developed, the primary market that they were intended for was the pulp and paper industries.

  • Sizes Range:DN 50~600mm NPS 2”-24”
  • Face to Face:MSS SP-81
  • Operation Option :Handwheel/Bevel Gear Pneumatic
  • Sealing :Optional
knife gate valve with pneumatic actuator
knife gate valve with pneumatic actuator

CE Certification

ISO Standards

Warranty Included




To close off a pipe or other fluid source, a knife gate valve can be used. This controls the flow of fluid through the pipes. Its primary application is in a pipe network used to transport gas or liquid. In particular, the piping system through which the high-density material flows. A knife gate valve gate is designed with sharp edges that can slice through the pipe’s high-density material. When the time comes, the pressure drop mechanism of this valve will shut off the flow. This guarantees a 100% leak-proof seal on the valve.


  • When the knife gate valve is in its fully open position, it enables a flow adjustment that is very slow and delicate.
  • In this valve, flow can move in any direction.
  • The location of the valve is completely discretionary. The flywheel, on the other hand, needs to be positioned on a strut that is vertical with respect to the ground.
  • Even for pipes with large nominal sizes, it may be possible to shorten the overall length of the valve.
  • It is readily available, at a low cost, and at any location you want.
  • There are varieties that are able to tolerate tremendous amounts of pressure.
  • Simple to take care of.


The knife gate valve is a unidirectional wafer knife edge gate valve used on industrial pipeline for on-off operation. The structure of body and seat eliminates clogging shutoff for flow with fine particles. Additionally, beveled knife edge helps the gate cut through thick media easily.

According to different working situation: non-rising stem knife gate valve, wafer knife gate valve, lugged knife gate valve, pneumatic knife gate valve, electric knife gate valve, manual knife gate valve and bevel gear knife gate valve are all available.


  • Guide claws design at the port bottom for gate fixture, instead of a groove, eliminates any potential clogging when valve shutoff.
    Integral body design ensures smooth flow, easy assembly and smaller shell leakage possibility.


  • Beveled knife edge provides strong cutting stress and tight sealing.
    PTFE resilient point guider above the port prevents metal-metal contact between gate and body.
    Gate thickness can be increased to meet higher pressure.


  • Side-entry seat is replaceable, reducing the cost of maintenance.
    Preloaded seat is adjustable to meet different sealing class and compensate normal seat wear.
    Seat retainer covers the side of seat and prevents seat from direct flow flushing.


  • Double thrust bearing minimize the torque required for operation.
    Stem Cover is available
    Grease Nipple is available
    Bearing Cover is available


  • Pulp & Paper / Water & Waster Water / Mining / Metallurgy / Petrochemical / Printing & Dying / Pharmacy / Beverage & Food

Sizes Range: DN 50~600mm NPS 2”-24” (Large diameter on request)
Sealing Options NBR: 90°C EPDM: 120°C Viton: 200°C PTFE: 200°C Metal seal: 304 / 316 + Satellite
Max Working pressure DN50~DN250: 10Bar NPS2~NPS10: 150Psi DN300~DN450: 7Bar NPS12~NPS18: 90Psi DN500~DN600: 4Bar NPS20~NPS24: 60Psi
Face to Face MSS SP-81
Operation Option Handwheel/Bevel Gear Pneumatic
  • GB/T 9113.1, JB/T 79.1, HG 20592, ASME B 16.5, EN1092-1
  • other connections on request
Can we order goods from you directly?
Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.
Can I get a discount?
This depends on the specific situation, you can call directly to consult.