The Air and Vacuum Release Valve 1.5 Inch is engineered to automatically eject trapped air and admit air during vacuum formation in irrigation pipelines, ensuring smooth water flow and preventing damages to pipes and system accessories. Made from lightweight, corrosion-resistant cast aluminum, it integrates a synthetic rubber seal for positive closure even at low pressures. Designed with a female threaded connection and a simple, compact profile, the valve offers instant vacuum relief and reliable air discharge during both filling and draining cycles. It operates up to 6–10 bar, safeguarding the irrigation network against water hammer, pipe collapse, and efficiency loss. The valve is ideal for use at high points and header units in drip, sprinkler, and mainline irrigation systems.