PPR Union Long Shank Ball Valve

The PPR Union Long Shank Ball Valve is a specialized, multifunctional component designed for Polypropylene Random Copolymer (PPR) piping systems. Its function is dual-purpose: it serves as a reliable, quarter-turn on/off valve for fluid flow using a standard ball mechanism, and its integrated union connections with extended stems provide significant installation and maintenance benefits. The "long shank" design positions the operating handle away from the pipe, allowing easy access even after insulation or wall covering. The union ends enable the valve to be installed or removed without cutting the main PPR line, making it essential for system isolation, servicing, and modifications in residential plumbing, radiant heating, and solar water installations.

Product Feature and Application

PPR Union Long Shank Ball Valves feature a detachable union joint and an elongated body, allowing for easy maintenance without cutting the pipe. Their primary feature is the hybrid construction that combines the durability of brass with the heat-fusion convenience of PPR. They are widely applied in concealed plumbing networks and residential water systems where valves are recessed behind walls, providing a reliable, accessible shut-off point for long-term service.

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

PPR Union Long Shank Ball 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.