Model: 

  FV 50-DI (Ductile Iron Body)

  Size Range:  2" ~ 12"

(Larger sizes available upon request)

ANSI Class 150

Features:

• Ductile Iron body maintains the anti-corrosive properties of Cast Iron while achieving a yield strength comparable to Carbon Steel. Ductile Iron also offers higher pressure/temperature ratings than Cast Iron.

  Carbon and Stainless Steel units are also available upon request. 

• Precision machined sealing surfaces allow the FV 50-DI to maintain a tight seal that meets or exceeds API 598 leakage requirements. Resilient seats are also available to provide bubble tight seals. 

• Numerous screen options available:  The standard screen construction material is Type-304 Stainless Steel. In addition, a wide variety perforations, meshes, and materials are readily available. Screens can be basket shaped our cone shaped.

General Application:

A foot valve is a special type of check valve that has a built-in strainer. It is installed at the intake side of a suction pipe and pump. Its purpose is to prevent the loss of prime when the liquid source (wet well) is lower than the pump. Prime is defined as the charge of liquid required to begin pumping action and priming is the process of filling the pump and suction pipe with liquid.

The check valve part of the foot valve opens when the pump starts to allow liquid to enter the suction pipe and pump. When the pump stops the check valves closes and prevents the liquid from emptying. Thus the foot valve eliminates the need to prime the pump each time it is started. The strainer component of the foot valve helps to remove unwanted debris from the liquid that may cause damage to the pump.