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IAPMO PS 072- 2007e1 Valves with Atmospheric Vacuum Breakers

IAPMO PS 072- 2007e1 Valves with Atmospheric Vacuum Breakers
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1. PURPOSE
1.1 The purpose of this standard is to establish a generally acceptable standard for valves with atmospheric vacuum breakers. Its purpose is to serve as a guide for producers, distributors, architects, engineers, contractors, installers, inspectors and users; to promote understanding regarding materials, manufacture and installation; and to provide for identifying valves with atmospheric vacuum breakers.
1.2 The provisions of this standard are not intended to prevent the use of any alternate material or method of construction, provided any such alternate meets the intent and requirements of this document and changes are amended to this standard.
2. SCOPE
2.1 This standard establishes an acceptable protocol for verification of performance and materials toxicity requirements for valves incorporating an atmospheric vacuum breaker device (Valve). Valves covered by this standard are intended for cold water installations requiring an integral anti-siphon device to prevent house water contamination when installed per the manufacturer's instructions. In cold climate areas, backflow assemblies and devices shall be protected from freezing by a method acceptable to the Administrative Authority.


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