Pneumatic Actuated Knife Gate Valve

Handling slurry, wastewater, and industrial fluids containing suspended solids requires a valve designed for reliable isolation and dependable operation. Valves Only Canada is a Pneumatic Actuated Knife Gate Valve Manufacturer in Canada for industrial facilities requiring automated shut-off and efficient handling of challenging process media. These valves combine a knife gate valve with a pneumatic actuator powered by compressed air. The actuator moves a sharp-edged gate linearly through the valve body to open or close the flow passage, helping the gate cut through or isolate media containing solids and fibrous materials. Valve construction, gate material, seat design, and actuator configuration are selected according to operating pressure, temperature, media characteristics, and process requirements.

Features 

• Compressed-air-powered actuator for automated valve operation. 
• Linear gate movement for opening and closing the flow passage. 
• Knife-edged gate design suitable for many slurry and solids-handling applications. 
• Double-acting or spring-return pneumatic actuator options, where available. 
• Remote operation through compatible PLC and DCS systems. 
• Unidirectional or bidirectional sealing, depending on valve design. 
• Lugged, wafer-style, or flanged configurations, depending on the model. 
• Metal-seated or resilient-seated options for different process conditions. 
• Gate and body materials selected according to corrosion, abrasion, and media compatibility. 
• Suitable for wastewater, pulp and paper, mining slurry, and other compatible industrial applications. 

Technical Specifications 

Parameter	Specification
Valve Type	Pneumatic Actuated Knife Gate Valve
Design	Knife gate valve with pneumatic actuator
Nominal Size	DN50 to DN1200 or larger
Body Materials	Cast Iron ASTM A126 Class B, Ductile Iron ASTM A536 Grade 65-45-12, or Stainless Steel ASTM A351 Grade CF8 / CF8M
Actuation	Pneumatic
Actuator Type	Double-Acting or Spring-Return
Control Accessories	Solenoid Valve, Filter-Regulator, Limit Switch Box, or Positioner
End Connections	Wafer-Style, Lugged, or Flanged
Gate Configuration	Rising or Non-Rising Stem
Flow Direction	Unidirectional or Bidirectional

Standards and Testing 

Pneumatic actuated knife gate valves are designed and tested according to applicable product specifications, service conditions, and project requirements. MSS SP-81 covers stainless steel, non-rising-stem, knife gate valves with flanged ends within its scope. ASME B16.34 may apply to relevant valve designs where specified and appropriate. Inspection and pressure-testing requirements should be confirmed with the manufacturer because general valve standards may not cover every knife gate valve design or application.

Industries Served 

• Mining & Mineral Processing 
• Water & Wastewater Treatment 
• Chemical Processing 
• Oil & Gas 
• Power Generation 
• Industrial Slurry Systems