AWWA C512-25 Air-Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service – Metallic Body and Cover
The purpose of this standard is to provide the minimum requirements for air-release valves, air/vacuum valves, and combination air valves for water and wastewater service, including material, design, testing, inspection, marking, and packaging for shipment.
Description
This standard describes 1/2-in. (13-mm) through 6-in. (150-mm) air-release valves and 1/2-in. (13mm) through 20-in. (500-mm) air/vacuum valves and combination air valves having gray cast iron, ductile iron, carbon steel, or stainless steel bodies and covers. The valves are designed for use in water or wastewater systems with maximum design pressures of 300 psig (2,070 kPa [gauge]), liquid temperatures ranging from above freezing to a maximum of 125°F (52°C), and a liquid pH greater than 6 and less than 12.
This standard can be referenced in documents for air-release valves, air/vacuum valves, or combination air valves. The stipulations of this standard apply when this document has been referenced and then only to air-release valves, air/vacuum valves, or combination air valves for water and wastewater service.