Flanged Foot Valve

• Valve Type: Foot Valve with Integrated Strainer
• Flange Standard: 150 lb ANSI
• Available Sizes: 2 – 8 in. flanged – Contact for additional sizes
• Valve Body: Ductile Iron A536
• Check Disc: Bronze ASTM B148
• Check Spring: 300 Series Stainless Steel
• Strainer Screen: 304 Stainless Steel Mesh
• Seat and Bushing: Bronze ASTM B148
• Bolt Fasteners: Stainless Steel
• Pressure Rating: 250 PSI at 100°F – Non-Shock Service
• Temperature Range: -20 to 450°F
• Maximum Spring Temperature: 450°F

• Ductile iron body: Maintains anti-corrosive properties of cast iron and offers a yield strength comparable to carbon steel. Provides higher pressure/temperature ratings than cast iron.
• Minimal head loss: Large cross-sectional area surpasses adjacent pipeline, reducing head loss. Spring-loaded, center-guided disc with low cracking pressure minimizes energy required for valve opening.
• Quick closure for water hammer reduction: Fully automatic, spring-assisted disc closes at near-zero flow velocity, achieving silent shut-off. Lightweight, center-guided disc design ensures positive shutoff prior to flow reversal, minimizing slamming and surges.
• Bronze metal-to-metal seats: Precision machined sealing surfaces enable the FV50-DI to maintain a tight seal that meets or exceeds API 598 leakage requirements. Resilient seats are also available for bubble-tight seals.These features ensure the flange type foot valve’s durability, efficiency, and versatility for various applications.

Foot Valve: Essential Component for Pump Protection

In a well-designed piping system, the foot valve serves as a key element in ensuring the durability and reliable function of the pump. This specialized check valve is engineered to prevent reverse flow, allowing water or other fluids to move in only one direction—into the pump. By maintaining system integrity and reducing the risk of damage, this simple device plays a critical role in pump longevity and overall system efficiency.

Understanding the Function of a Foot Valve

Typically installed at the bottom end of a suction line, the foot valve operates within the fluid it regulates. When the pump is running, the valve opens to permit fluid intake. Once the pump stops, the valve automatically closes, preventing fluid from draining back and ensuring that the pump remains primed for the next cycle.

By keeping the suction line filled, the valve eliminates the need for frequent re-priming, helping reduce energy consumption and minimize mechanical wear. This function is particularly valuable in systems that rely on consistent operation or are situated in remote or hard-to-access areas.

Backflow Prevention and System Protection

One of the key benefits of using a bottom suction check valve like this is its ability to prevent backflow. Without such a safeguard, reverse fluid movement can lead to pump failure, water hammer, or contamination within the system. A dependable valve ensures one-way flow, thereby protecting both the pump and the connected piping from harmful pressure changes and inefficiencies.

Additionally, preventing backflow helps avoid air intrusion and cavitation—common causes of reduced performance and equipment failure. The result is a more stable and reliable hydraulic system.

Applications Across Industries

Foot valves are commonly used in:

• Agricultural irrigation systems – to maintain water access and prevent downtime

• Industrial fluid transfer setups – where pump integrity is critical to operations

• Residential water supply systems – ensuring consistent water pressure and system reliability

• Wells, tanks, and reservoirs – to retain prime and reduce pump wear

Their role in maintaining continuous suction and protecting pump mechanisms makes them indispensable in various sectors.

Explore Our Foot Valve Collection

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