Check valve SCHLOSSER DN15 GZ 1/2" × GW 1/2" straight, model 601300004

Straight check valve SCHLOSSER DN15 GZ 1/2" × GW 1/2" model 601300004 is a compact inline non-return valve designed for DN15 piping systems. It permits flow in one direction while preventing backflow, making it suitable for residential and light commercial water installations as well as heating circuits. The valve's straight-body design with male G1/2" to female G1/2" thread connections enables simple inline installation where space is limited and a reliable seal is required.

Advantages

This SCHLOSSER check valve offers reliable one-way flow control with a compact straight configuration that fits standard DN15 piping. The threaded male-to-female connection simplifies replacement and integration into existing plumbing runs without the need for additional adapters. The valve construction is designed for minimal pressure drop in normal operating conditions and to reduce the risk of backflow in potable water and heating applications.

Suitable for

• Residential water supply lines and plumbing fixtures
• Heating system circuits and boiler returns
• Compact inline installation where DN15 (1/2") connections are used
• Prevention of reverse flow in light commercial water systems

Key specifications

• Nominal size: DN15 (1/2")
• Connection type: straight, male G1/2" to female G1/2" threads
• Function: check (non-return) valve for unidirectional flow
• Typical application: water and heating circuits for residential and light commercial use
• Installation orientation: inline, straight pipe configuration

How to use

Select an appropriate location in the DN15 pipeline where prevention of backflow is required and ensure the flow direction matches the valve orientation. Shut off the system supply and drain the section of pipe before removal of any fittings. Fit the male G1/2" thread into the mating female thread and engage the female thread end on the opposite side, applying suitable thread sealant or tape where required by local plumbing practice. Tighten connections to achieve a leak-free joint without over-torquing. After installation, restore supply and check the valve for proper operation and absence of leaks under normal system pressure.

Usage recommendations

For long-term performance, install the valve in a location accessible for inspection and maintenance, avoid exposure to freezing conditions, and follow local plumbing codes for thread sealing and mounting. If used in heating systems, consider periodic checks during commissioning and seasonal start-ups to ensure the non-return function remains effective.