Screw foot valve

FREE-VALVE’sscrewfootvalve is a kind of energy saving valve, usually installedatthe bottom of thesuction 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

1.Screw footvalve is composed of valve body, disc, cover,strainer basket, sealing ring and other parts.

2.The disc is moved up and down underfluidpressuredrop between inlet and outletto realize the valve opening and closing.Thevalveopens under the pressure of the fluid.

3.When the pump stops working,the valvewill be shut off quicklyunderpressureofoutlet pipe , and the liquid will not flow back to the water source, which will help the watersuctionpump and save water loss.

4.Flow areais 2to3times of the pipe areaabout stainless steelor carbon steelstrainer basket.

Technical Specification:

1.SizeRange:NPS2~NPS8,DN50~DN200

2.Applicable Temperature: 0~300℃

3.Connection Type:screw

4.Sealing material:soft sealing or hardness sealing

5.Material of main parts：WCB,stainless steel

6.Test standard：GB/T13927,API598

Application:

FREE-VALVE’sscrewfootvalveis 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 iscaststeelconstruction. Ports arefemalescrewfor easy installation.