ASTM A536 65-45-12 Air Bleed Valve

An ASTM A536 65-45-12 air bleed valve is an automatic, self-operating utility valve cast from high-tensile Grade 65-45-12 ductile iron (ASTM A536), engineered specifically to exhaust trapped air pockets and gases from pressurized liquid pipelines during system startup and continuous operation. The 65-45-12 ductile iron formulation provides an optimal blend of high yield strength (45,000 PSI min) and 12% elongation, preventing body cracking caused by water hammer or pressure surges while the internal float mechanism automatically releases accumulated air. Conforming to standards like AWWA C512 and EN 1074-4, these durable release valves are critical specifications in municipal water transmission mains, sewage pumping stations, and agricultural irrigation networks, allowing civil utility engineers to prevent flow restrictions by importing certified ASTM A536 65-45-12 air bleed valves directly from leading manufacturers in China via our advanced B2B commercial platform.