Titan Flow Control's FV 50-DI Globe Style Foot Valve Assembly is designed to silently maintain prime during pump outage.
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 valve 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.
Features
- Designed for Long Service Life: 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
- Minimal Head Loss: Head loss is minimized by providing a large cross-sectional area which exceeds that of the adjacent pipeline - Additionally, the spring loaded, center guided disc is designed with very low cracking pressure which reduces the amount of energy required to open the valve
- Quick Closure to Reduce Water Hammer: Silent shut-off is achieved via the fully automatic, spring assisted disc that closes near zero flow velocity - The lightweight, center guided disc design creates a positive shutoff prior to flow reversal and helps to keep slamming and surges to a minimum
- Bronze Metal-to-Metal Seats: Precision machined sealing surfaces allow the FV50-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: 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 or cone shaped - Please call 1-800-333-3331 for more information
Specifications
- Type: Foot Valve Assembly
- Model: FV 50-DI
- ASME Class: 150 lb.
- Size: 2 - 8 in. Flanged - Other sizes available - Please call 1-800-333-3331 for more information
- Body Material: Ductile Iron A536
- Disc: Cast Bronze ASTM B148
- Spring: Series 300 Stainless Steel
- Bushing: Cast Bronze ASTM B148
- Seat: Cast Bronze ASTM B148
- Bolts: Stainless Steel
- Screen: Type 304 Stainless Steel
- Pressure/Temperature Rating: 250 PSI @ 100°F - WOG (Non-shock)
- Operating Temperature Range: -20 to 450°F
- Spring Material Maximum Temperature: 450°F
Note: The bolting pattern for Cast Iron ASME Class 125 and Ductile Iron ASME Class 150 are identical thus they are interchangeable.
Downloads
FV50-DI Foot Valve Assembly Datasheet (PDF Download)
