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  • ASSE
    ASSE 1063-2016(R2021) - Air Valve and Vent Inflow Preventer
    Edition: 2016
    $47.25
    per year

Content Description

The purpose of air valve and vent inflow preventer assemblies is to allow the release and admission of high volumes of air through air valves and air vents in potable water distribution systems, but prevent the entry of contaminated water when the air valve outlet becomes submerged from flooding or is the target of malicious tampering. Assemblies consist of a primary and secondary chamber. Each chamber contains an independent float-operated closure member. The primary chamber is the lower chamber. The secondary or upper chamber is redundant and will close in the event that the primary chamber fails to close. Other configurations achieving the performance requirements of this standard are acceptable.

About ASSE

ASSE, the American Society of Sanitary Engineering, is a nonprofit organization that develops and publishes standards aimed at preventing unsanitary design in plumbing systems. Headquartered in Westlake, United States, ASSE standards contribute heavily to the IAPMO Uniform Plumbing Code, the overarching standard for plumbing in the United States. With 70 member companies and many more individual members, ASSE work promotes the prevention rather than cure philosophy.
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