Double PPR Long Shank Fill Valve

A Double PPR Long Shank Fill Valve is a specialized device engineered for precise water level control within Polypropylene Random Copolymer (PPR) storage and supply systems. Its function is to automatically regulate tank refilling: it opens to admit water when the level falls and shuts off upon reaching the preset height to prevent overflow. The extended "long shank" allows installation across deeper tanks, while the "double PPR" design integrates PPR union connections on both the inlet and outlet. This provides a seamless, permanent, and leak-free fusion joint with the main PPR piping, ensuring robust, maintenance-free operation in applications like residential water tanks, solar thermal systems, and industrial storage.

Product Feature and Application

Double PPR Long Shank Fill Valves feature dual Polypropylene Random Copolymer connections integrated with an elongated brass shank. This hybrid design allows for direct thermal fusion welding to PPR piping systems, ensuring a seamless, leak-proof joint. Their primary application is in modern residential plumbing and concealed cisterns, where the long shank reaches through thick wall partitions while the PPR ends provide a corrosion-resistant, permanent connection.

Product Parameter

Technical Specification

Nominal Pressure: 1.6 MPa

Working Medium: Water

Operating Temperature: -10 °C ≤ T ≤ 100 °C

Thread conforms to ISO 228 standard

Product Dimension

Installation Guidelines

1.Clean and prepare the piping system thoroughly before installing the valve.

2.Before installation, remove any protective end caps and inspect the valve ports and seating surfaces to ensure they are clean.

3.Provide adequate support for the valve to avoid stress from connecting piping.

4.Confirm that the valve’s pressure and temperature ratings are suitable for the intended service conditions.

5.Before placing the valve into service, cycle it fully from open to closed to verify smooth operation.

6.After installation, check that the packing nut is properly tightened.

Operating Instructions

Double PPR Long Shank Fill Valves are manually operated. Turn the handle counterclockwise to open and clockwise to close.

Inspection and Maintenance

1.Routine inspection and preventive maintenance are generally not required, aside from occasional adjustment of stem packing and periodic cycling of the valve from open to closed.

2.If a packing leak occurs, tighten the packing nut clockwise by about a quarter-turn—or until leakage stops—to increase sealing pressure on the stem packing. Never repack a valve while it is under system pressure.

3.When replacing the valve stem, also replace the packing material.