S.H PPH Ball Foot Valve | S5 1.25MPa Chemical-Grade Hot-Melt Socket Fusion Non-Return Strainer Joint (25mm - 110mm)

Xieyu S.H Premium PPH Socket Fusion Ball Foot Valves (S5 / 1.25MPa)

Secure and maintain prime on your pump intake lines with our premium Xieyu S.H PPH socket fusion ball foot valves, available at Atradesen.com. Manufactured by Xieyu (S.H / HIEH), a global leader in high-performance thermoplastic piping systems, these heavy-duty PPH (Polypropylene Homopolymer) valves are engineered to withstand continuous operating pressures up to 1.25 MPa (181 PSI) and temperature loads from -20°C to 100°C.

Featuring an integrated non-return check ball and a heavy-duty slitted screen, this professional foot valve series is highly compatible with industrial chemical pipelines, acid pickling loops, electroplating lines, waste gas scrubbers, waste acid recovery, and wastewater treatment.

Keep Water Prime and Protect Pump Impellers

In suction lift plumbing layouts, self-priming pumps and centrifugal pumps require the inlet line to remain completely filled with water (primed) to initiate. Our Ball Foot Valve is a specialized non-return valve installed at the absolute lowest point of your suction line. Equipped with an internal gravity-ball or lift check mechanism, it closes instantly when fluid pressure drops, holding the vertical water column in the intake line. This prevents dry-start damage to pump impellers and removes the need for manual priming during every startup.

Integrated Protective Strainer Basket

The base of the valve is molded with a dense, parallel-slitted strainer basket (commonly called a "flower basket" / 花篮头). This integrated grid acts as a heavy-duty physical barrier, filtering out large suspended debris, tree leaves, pebbles, and plastic chunks from entering your suction plumbing. It is highly deployed in waste acid pickling pools, wastewater treatment facilities, chemical processing sumps, and agricultural reservoir pumping networks.

⚠️ Sizing & Socket Fusion Guidelines

Nominal pipe dimensions are based on standard outer diameters. Please measure your pipe outer diameter (OD) before placing your order:

• Female Socket End (ID): The top outlet port is a standard female socket. Its inner diameter is designed to slide directly over standard pipes with outer diameters of: 25mm (DN20), 32mm (DN25), 40mm (DN32), 50mm (DN40), 63mm (DN50), 75mm (DN65), 90mm (DN80), and 110mm (DN100).
• Weld Connection Methods: Requires standard hot-melt socket fusion welding using professional heating equipment to melt the joints together, securing a completely seamless, leak-proof molecular system. Alternatively, they can be welded using PPH plastic welding rods.

Technical Specifications

Frequently Asked Questions (FAQ)

Q: How does the PPH ball foot valve hold water prime in self-priming pump lines?

A: When the pump is active, the upward suction lifts the internal PPH ball core, allowing liquid to flow through the strainer and enter the pipe. The moment the pump turns off, gravity and the backward pressure of the water column immediately force the ball core down into the precision-machined EPDM/Viton valve seat. This completely blocks backflow, keeping the suction line entirely full of water for the next startup.

Q: What is the main maintenance requirement for these strainer basket valves?

A: Over time, large leaves, weeds, or plastic bags may accumulate on the outside of the parallel-slitted strainer grid, restricting water intake. For optimum flow and to prevent pump cavitation, periodically lift the foot valve from the tank or basin and rinse the strainer basket under running water to clear any surface debris.