Watts 3/4″ Lead-Free Brass Vacuum Relief Valve

The Watts LFN36-M1 vacuum relief valve is a critical safety component designed for water heater and water tank applications. Its primary function is to automatically allow air into the piping system, effectively preventing vacuum conditions that could siphon water from the system and cause significant damage to water heater or tank equipment. By maintaining proper pressure balance, this valve ensures the integrity and longevity of your plumbing infrastructure, making it an essential addition to any domestic water heating setup.

Constructed from durable lead-free brass, this valve meets rigorous industry standards, including CSA certification and ANSI Z21.22 ratings. It is engineered to withstand temperatures up to 250 degrees Fahrenheit, with a maximum steam pressure of 15 psi and a maximum working pressure of 200 psi. This robust build quality ensures reliable performance in low-pressure steam and water service environments. The valve is particularly suitable for use in domestic water heaters, supply tanks, tabletop heaters, jacketed steam kettles, unit heaters, and low-pressure steam systems.

Featuring a compact, low-profile design, the LFN36-M1 is easy to install even in tight spaces without compromising functionality. The unit includes a protective cap to safeguard internal components and utilizes a male NPT inlet connection for straightforward integration into existing systems. Please note that while this valve prevents vacuum conditions, it is not designed or approved as a back-siphonage backflow preventer. Watts Water Technologies, established in 1874, continues to deliver innovative solutions to keep water resources safe, clean, and accessible for customers worldwide.