Angle water valve with union INVENA ZK-52-025 DN25 (angled shut-off valve)

Angle water valve INVENA ZK-52-025 DN25 is an angled shut-off valve with a union designed for DN25 piping. It provides manual control of water flow at a 90° connection point and is intended for installations where a compact, union-equipped stop valve is required. The valve body and union allow straightforward connection and disassembly for maintenance without disturbing the rest of the pipeline.

Advantages

The angled design saves space where a straight valve would be impractical, while the integrated union (screw coupling) enables easier installation and removal. The valve offers reliable manual shut-off for cold and hot water systems, with a robust construction suited to domestic and light commercial plumbing. Its compact form factor and simple mechanical operation reduce the need for frequent servicing.

Suitable for

• Residential water supply installations with DN25 piping
• Hot and cold water shut-off points in bathrooms and kitchens
• Service connections where periodic disassembly is needed
• Light commercial plumbing requiring compact angled shut-off valves

Key specifications

• Connection type: angled shut-off with union (screw coupling)
• Nominal diameter: DN25 suitable for 25 mm pipeline systems
• Flow direction: 90° (angled connection)
• Actuation: manual operation via handle or knob
• Intended medium: potable water and general water supply
• Application: inline isolation for maintenance and repair

How to use

Shut off the water supply upstream before installing the valve. Fit the union end to the corresponding DN25 piping, ensuring appropriate sealing material or gasket is used if required by the installation. Tighten the union coupling to secure the connection without over-torquing. Operate the valve manually using the handle or knob to open or close the flow. For removal, turn off the upstream supply, loosen the union coupling and separate the valve from the pipeline for maintenance or replacement.

Usage recommendations

Use the valve in accordance with local plumbing codes and standard installation practices. Avoid excessive force when tightening the union to prevent damage to threads or seals. Periodically inspect the valve and union for leaks and corrosion; replace sealing elements if leakage is detected. For installations with higher temperature or pressure demands, verify material compatibility and system limits before use.