Bottom foot valve
FREE-VALVE’s bottom footvalve is a kind of energy saving valve, usually installed at the bottom of the suction pipe of pump. The functionsof foot valve are designed to stop water from going backwards when the pump shuts off and only allow the water flow forward . As many inlet and stiffeners are designed on the valve bonnet , the valve is not easy to clog . The foot valve is usually applied at suction pipe . The valve disc usually designed as signal disc ,and connection method is flange .
Features
- Flange foot valve is composed of valve body, disc, cover,strainer basket, sealing ring and other parts.
- The disc is moved up and down under fluid pressure drop between inlet and outlet to realize the valve opening and closing.The valveopens under the pressure of the fluid.
- When the pump stops working, the valve will be shut off quicklyunder pressure of outlet pipe , and the liquid will not flow back to the water source, which will help the water suction pump and save water loss.
- Flow area is 2to 3times of the pipe areaabout stainless steelor carbon steel strainer basket.
Technical Specification:
- Size Range: NPS2~NPS20,DN50~DN500
- Applicable Temperature: 0~300℃
- Connection Type: Flangeor screw
- Sealing material: soft sealing or hardness sealing
- Material of main parts：WCB,stainless steel
- Test standard：GB/T13927,API598
Application:
FREE-VALVE’s bottom footvalveis designed for usingin irrigation as well as other pumping applications where water may be dirty due to suspended silt and sand. It offers extremely low head loss. Valve body iscast steelconstruction. Ports are female screw or flangefor easy installation.
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