Foot Valve
The foot valve is a crucial component in numerous fluid handling systems, providing reliable and efficient control of fluid flow in a variety of industrial, agricultural, and residential settings.
Foot Valve Supplier from China
A foot valve is a one-way check valve fitted to the bottom of a pump suction line. It keeps the pump primed by preventing back-flow, while the integrated strainer stops debris from entering the pump.
ShengYa supplies foot valves with spring-loaded or flap-style discs in PVC, polypropylene, brass and stainless steel for clean water, irrigation, slurry and light chemical duty.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Foot Valve with Strainer (Pump Suction Check Valve) |
| Body Material | PVC · PP · Brass · Stainless Steel 304/316 |
| Size Range | 1/2" to 6" (DN15 – DN150) |
| Connection | BSP / NPT female thread, hose tail or flange |
| Valve Type | Spring-loaded disc or swing flap |
| Strainer | Integrated stainless or plastic screen, 20–60 mesh |
| Working Pressure | Up to 10 bar (150 PSI) |
| Working Temperature | 0°C to +60°C (plastic) / up to +150°C (metal) |
| Seal Material | NBR, EPDM or Viton |
| MOQ | 100 pcs per size |
Key Features
- Keeps the pump primed so it does not lose suction between starts.
- Built-in strainer stops sand, stones and debris from damaging the impeller.
- Spring-loaded disc closes quickly to minimise back-flow and water hammer.
- PVC and PP bodies resist corrosion and are far lighter than metal equivalents.
- Large flow area design reduces suction loss and improves pump efficiency.
- Serviceable body allows strainer cleaning and disc replacement in the field.
Application Scenarios
- Well & borehole pumps: maintaining prime on shallow and deep-well suction lines.
- Irrigation: drawing water from ponds, canals, reservoirs and storage tanks.
- Construction dewatering: trash pumps and diaphragm pumps on excavation sites.
- Agricultural spraying: preventing back-flow of fertilizer or pesticide into the water source.
- Industrial transfer: light chemical and process water suction lines with PP or stainless bodies.
Customization & OEM Service
ShengYa supplies pump foot valves with integrated strainer to distributors, hose assemblers and OEM equipment builders worldwide. We support full customization:
- Size & specification: non-standard bore, band width or thread pitch built to your drawing.
- Material selection: carbon steel, stainless steel 304/316, brass, aluminium, PP or nylon to match the medium.
- Sealing & gasket: NBR, EPDM, Viton, PTFE or silicone gaskets for chemical, oil or food contact.
- Branding: laser-engraved logo, stamped part number, custom label and retail/wholesale packaging.
- Documentation: material certificate, dimensional report and pressure-test report on request.
Packaging & Delivery
Standard packing is polybag + inner box + export carton, or bulk-packed on request. Typical MOQ is 500 pcs per size for customized orders and 100 pcs for stocked sizes. Lead time is 7–15 days for stock and 20–30 days for customized production. Samples are available for evaluation before bulk order.
Frequently Asked Questions
Why does my pump keep losing prime?
The most common causes are a worn or stuck valve disc, a clogged strainer, or an air leak on the suction side. Clean the strainer and inspect the disc seat; if the disc no longer seals, replace the valve.
Should I choose a spring-loaded or flap type?
Spring-loaded discs close faster and work in any orientation, making them better for portable pumps. Flap types have lower flow resistance and suit larger, permanently installed lines.
Can the foot valve be used with dirty water?
Yes, but you should clean the strainer regularly. For heavily silted water we recommend a larger strainer surface or an external suction strainer basket.
What size foot valve do I need?
Match the valve to your suction pipe diameter, or use one size larger to reduce suction loss when the lift height is significant.
