Brass automatic air vent pressure valve — 1-inch connection Key benefits Removes trapped air automatically to prevent air locks and restore full flow in closed water systems. Reduces pump noise and wear by maintaining steady system pressure and minimizing cavitation. Durable brass construction resists corrosion and withstands repeated heating and cooling cycles for long service life. Easy, tool-free installation with a standard 1-inch connection that fits common piping and fittings. Fully mechanical operation; no electrical power or controls required. How it solves common problems Air pockets that form in radiators, baseboards, or circulation loops cause uneven heating, noisy pumps, and higher energy use. This valve vents air automatically to restore balanced flow and consistent system performance. By venting air and stabilizing pressure, the valve helps reduce cycling and mechanical stress on pumps and system components, extending equipment life and lowering maintenance needs. Features & specifications Function: Automatic air vent with built-in pressure valve for closed-loop hydronic systems. Material: Brass body for corrosion resistance and thermal durability. Connection size: 1 inch (fits standard piping and fittings). Installation: Tool-free connection; no electrical power required. Practical notes for installation and use Install in the correct orientation as specified by your system design to ensure reliable venting. Purge the system of air during initial startup or after maintenance; the valve will continue to remove any trapped air that accumulates during normal operation. Suitable for hot water systems and closed-loop hydronic setups; check system compatibility with brass components if special water chemistry is used. Typical applications / use scenarios Residential hydronic heating: Install on radiator or baseboard circuits to remove air pockets and ensure even room heating. Boiler circulation loops in homes or small offices: Place at high points or near return lines to prevent air locks and reduce pump noise. Closed-loop solar thermal or radiant floor heating: Use in collector loops or distribution manifolds to keep flow steady and protect pumps and heat exchangers. Ordering and compatibility reminder 1-inch connection fits standard piping and fittings; verify pipe thread type and orientation with your installer.