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Unidirectional Knife Gate Valve manufacturer in Canada

Unidirectional Knife Gate Valve

Unidirectional knife gate valves provide reliable on/off isolation for pipelines handling slurry, sludge, wastewater, fibres and suspended solids.

Category:

For pipelines carrying solids-containing or high-solids process fluids, a Unidirectional Knife Gate Valve Manufacturer in Canada provides simple and reliable on/off isolation. It is designed to operate with a defined flow direction, using a vertically moving gate to open or close the pipeline. The valve is commonly used for slurry, sludge, wastewater, fibres, and suspended solids, where dependable shut-off and effective solids handling are important.  

Features and Applications 

  • Unidirectional shut-off 
  • Sharp-edged gate for slurry and solids-laden media 
  • Full-port flow passage in applicable designs 
  • Low flow resistance in the fully open position 
  • Resilient or metal seat configurations 
  • Designed for abrasive and fibrous media 
  • Mining and mineral processing 
  • Slurry and tailings handling 
  • Water and wastewater treatment 
  • Chemical and process industries 
  • Power generation and ash handling 

Technical Specifications 

Parameter  Specification 
Valve Type  Unidirectional Knife Gate Valve 
Design  Linear-motion, wafer/lug / flanged 
Nominal Size  DN50 to DN1200 
Pressure Rating  PN6, PN10, PN16 / ASME Class 150 
Body Materials  Cast Iron ASTM A126 Class B, Ductile Iron ASTM A536, Carbon Steel ASTM A216 WCB, Stainless Steel ASTM A351 CF8 / CF8M 
Gate Materials  Stainless Steel SS304 / SS316 / SS316L, Carbon Steel ASTM A216 WCB, Duplex 2205, Super Duplex 2507 
Seat Materials  EPDM, NBR, PTFE or Metal 
End Connections  Wafer, Lug or Flanged 
Flow Direction  Unidirectional 
Bore Design  Full Port  
Actuation  Handwheel, Gear, Pneumatic or Electric 

 

Standards and Testing 

The valve can be specified, inspected and tested according to applicable MSS, ASME, API and ASTM requirements. Relevant standards may include MSS SP-81, MSS SP-135, ASME B16.34, ASME B16.5 and API 598, where applicable to the valve design and project specification.

Industries Served 

  • Mining & Mineral Processing 
  • Slurry & Tailings Handling 
  • Water & Wastewater 
  • Chemical Processing 
  • Power Generation 
  • Cement & Minerals 
  • Bulk Solids Handling 
  • Steel & Metallurgy 

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