Foot Valves

Polypropylene (PPH) foot valves are a critical component in many industrial pipework systems, designed to maintain prime in suction lines and prevent reverse flow when pumps are switched off. Installed at the inlet of a suction pipe - typically submerged in a tank, sump or reservoir - foot valves act as a non-return valve while also protecting pumps from debris entering the system.

At Pipestock, we offer a broad selection of PPH foot valves, with multiple configurations to suit demanding chemical and industrial applications where reliability, chemical resistance and long service life are essential.

Manufactured from polypropylene homopolymer (PPH), these foot valves offer excellent resistance to a wide range of aggressive chemicals, acids and alkalis. PPH is well known for its high abrasion resistance, low permeability and stability at elevated temperatures, making it an ideal material for use in hot and corrosive liquid handling systems.

PPH foot valves are specifically designed to:

• Prevent backflow and loss of pump prime
• Protect pumps from dry running
• Reduce maintenance and downtime
• Ensure consistent and efficient system operation

Our PPH foot valve range includes multiple designs to suit different installation requirements:

• Designed for metric pipe systems
• Ideal for solvent welding or fusion-based installations
• Provide a compact, secure connection in fixed pipework

• Available with male BSP threads
• Suitable for threaded pipe systems or equipment connections
• Easy to install, remove and maintain

• EPDM seals - suitable for water, mild chemicals and many industrial fluids
• FPM (Viton) seals - enhanced chemical resistance for aggressive media, solvents and higher-temperature applications

This flexibility allows engineers to select the most appropriate foot valve for both the fluid being conveyed and the connection method used within the system.

PPH foot valves are widely used across a broad range of industrial and process environments, including:

• Acid and alkali transportation
• Chemical processing plants
• Industrial waste and effluent treatment
• Water treatment and filtration systems
• Pharmaceutical and biotechnology facilities
• Hospital and laboratory pipework
• Brewing and distilling processes
• Food and beverage production
• Electronics manufacturing
• Nuclear and specialist industrial installations

Their corrosion resistance, non-toxic properties and smooth internal surfaces make them particularly suitable for applications where purity, safety and long-term reliability are critical.

• Material: Polypropylene (PPH)
• Valve type: Foot valve / non-return valve
• Connection options: Plain socket or BSP threaded
• Seal materials: EPDM or FPM
• Function: Maintains pump prime and prevents reverse flow
• Chemical resistance: Excellent resistance to acids, alkalis and corrosive fluids
• Installation: Suitable for submerged suction line use