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AWWA C512-2025
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.
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AWWA: American Water Works Association [awwa]