Check valve SCHLOSSER 3/8" x 3/8" (model 601300001)

The SCHLOSSER inline check valve 3/8" x 3/8" is a compact, threaded non-return valve designed to permit fluid flow in one direction while preventing backflow in piping systems. Manufactured for general fluid installations, this model is suitable for water and heating circuits and fits standard 3/8" female threaded connections. The valve body and internal components provide straightforward integration into residential and light commercial plumbing where a small-footprint, reliable check function is required.

Advantages

This check valve offers a compact form factor and simple threaded connections for quick installation into existing 3/8" lines. The design ensures unidirectional flow control without the need for external power or active control, reducing complexity in piping layouts. Its construction is intended for typical water and heating applications, providing dependable prevention of backflow and helping to maintain system pressure and hygiene. The valve's compatibility with common fittings makes it versatile for a range of plumbing setups.

Suitable for

• Residential water supply lines
• Heating system circuits and radiators
• Under-sink and appliance connections
• Light commercial plumbing installations

Key specifications

• Connection size: 3/8" x 3/8" threaded
• Type: Inline check (non-return) valve
• Application media: Water and typical heating fluids
• Installation orientation: Inline, for unidirectional flow
• Typical use: Residential and light commercial plumbing systems

How to use

Install the valve inline between two compatible 3/8" threaded fittings, ensuring the flow direction marking on the valve matches the intended direction of fluid movement. Use appropriate thread sealing material or tape on the male threads to ensure a leak-free joint. Tighten connections with suitable tools without over-torquing to avoid damaging the threads or valve body. After installation, run the system and check for leaks and correct operation by verifying that fluid passes only in the intended direction and that no backflow occurs when downstream pressure changes.

Usage recommendations

For best performance, select the valve for use with clean water or compatible heating fluids and avoid abrasive or heavily contaminated media. Inspect and service the valve periodically as part of routine plumbing maintenance, and replace it if internal wear, leakage, or reduced sealing performance is observed.