Indu

Foot Valve

Maintaining pump priming and preventing reverse flow are essential for reliable operation in water intake, irrigation, and fluid transfer systems. Valves Only Canada supplies foot valves in Canada for pumping applications that require one-way flow control and reduced risk of losing prime when the pump stops. Installed at the lower end of a suction pipe, a foot valve combines a non-return valve with an inlet strainer in many designs.

The valve opens when the pump draws fluid and closes when flow stops, helping retain liquid in the suction line and preventing backflow. Body materials, screen configurations, connection types, and pressure limits are selected according to the pumping system and operating conditions. 

Features 

  • Non-return design to prevent reverse flow in pump suction lines. 
  • Helps maintain pump priming by retaining liquid in the suction pipe. 
  • Integrated strainer in many designs to reduce the entry of debris. 
  • Available in metal and thermoplastic constructions, depending on the application. 
  • Spring-assisted or gravity-operated closing, depending on design. 
  • Flanged, threaded, or other connection options, depending on the model. 
  • Screen designs available for different intake conditions. 
  • Materials selected for compatibility with water and other approved fluids. 
  • Suitable for submerged suction and water intake applications. 
  • Designed for low-pressure-drop operation when correctly sized. 

Technical Specifications 

Parameter  Specification 
Valve Type  Foot Valve 
Design  Non-Return Valve with Inlet Strainer 
Nominal Size  1/2″ to 12″ or larger 
Pressure Rating  ASME Class 125–Class 250 
Body Materials  Cast Iron ASTM A126 Class B, Ductile Iron ASTM A536 Grade 65-45-12, Stainless Steel ASTM A351 Grade CF8 / CF8M.  
Operating Principle  Automatic one-way flow control 
Closing Mechanism  Gravity-operated or spring-assisted 
End Connections  Threaded, Flanged 

Standards and Testing 

Foot valves should be selected according to the pump system\'s operating conditions, connection requirements, and applicable product specifications. ASME B16.5 may apply to compatible flanged connections within its scope, while ASME B1.20.1 applies to relevant inch-based pipe threads. Inspection, leakage testing, and performance verification should follow the manufacturer\'s documented procedures and the project requirements, as a single general valve standard does not cover every foot valve design.

Industries Served 

  • Water Supply & Distribution 
  • Agriculture & Irrigation 
  • Water & Wastewater Treatment 
  • Industrial Pumping Systems 
  • Construction & Building Services 
  • Mining & Mineral Processing 
  • Chemical Processing, for compatible fluids 
  • Municipal Water Intake Systems 

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