Angle check (non-return) valve SCHLOSSER DN15

SCHLOSSER angle check (non-return) valve DN15 is a compact plumbing fitting engineered to allow fluid flow in one direction while preventing reverse flow. Designed for DN15 (approximately ½") connections, this valve is suitable for residential water supply, heating circuits and localized fixture isolation. Its right-angle body makes it convenient for installations where space is limited or piping changes direction.

Advantages

The angle check valve provides reliable one-way flow control with a space-saving right-angle design that simplifies installation in confined areas. Constructed for typical domestic and light commercial systems, it helps protect pumps and fixtures from backflow and potential contamination. The DN15 size offers compatibility with common ½" piping and fittings, enabling easy integration into existing installations.

Suitable for

• Domestic cold and hot water supply lines
• Heating loop connections and circulation pump protection
• Isolation of fixtures such as sinks, toilets and appliances
• Retrofit or new installations with limited space or directional piping requirements

Key specifications

• Connection size: DN15 (approx. ½") suitable for standard small-diameter plumbing
• Function: one-way (non-return) flow control to prevent backflow
• Body geometry: angle/right-angle design for directional change in piping
• Typical application fluids: potable water and heating system water
• Installation orientation: inline for one-directional flow as marked on the body

How to use

Install the SCHLOSSER angle check valve in line with the flow direction indicated on the valve body. Ensure pipe ends and sealing surfaces are clean and compatible with the valve connections; use appropriate fittings or soldering/threads per the system type. Tighten connections to the manufacturer's recommended torque for the chosen connection method and pressure-test the system after installation to confirm there are no leaks and the non-return function operates correctly.

Usage recommendations

Use this valve in applications where preventing backflow is necessary for system safety and hygiene. Avoid installing the valve where debris or sediments are likely to accumulate; if that is unavoidable, include a filter or strainer upstream. Periodically inspect for signs of leakage or wear and replace the valve if the non-return action becomes unreliable.