Brass automatic vent valve engineered for water heating and plumbing systems Key benefits Removes trapped air automatically: prevents air pockets and air locks that reduce heat transfer, cause noisy pipes, or lead to uneven heating. Reliable at temperatures: designed to withstand the elevated temperatures found in water heating systems for consistent operation. Durable, rustresistant construction: made from brass to resist corrosion and provide long service life with minimal maintenance. Easy compatibility: available in standard thread sizes (1/2in, 3/4in, 1in) to match common plumbing connections and simplify replacement or retrofits. What makes it stand out Purposebuilt for heating systems: this auto vent valve vents air continuously without manual bleeding, helping maintain system efficiency and reducing service calls. Precise thread sizing: offered in 1/2in, 3/4in, and 1in for reliable sealing and quick installation in a variety of setups. Solid brass body for longevity: brass construction balances strength and corrosion resistance for dependable performance in wet, temperature environments. Typical applications Residential hot water heaters and tanks: automatically remove air from supply and lines to keep heat transfer efficient. Boilers and hydronic heating systems: prevent air locks in circulator pumps and radiators to maintain steady flow and reduce noise. Radiator, manifold, and branch piping installations: use at points to purge trapped air and improve overall system balance. Installation and selection tips Match the valve thread size (1/2in, 3/4in, or 1in) to your existing fittings for a proper seal. Install at system points or on radiator/manifold air vents for maximum effectiveness. Brass construction reduces corrosion concerns; inspect periodically as part of routine system maintenance.