Awwa

Awwa C515-20 Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service

The purpose of this standard is to provide the minimum requirements for reduced-wall, resilient-seated gate valves for water supply service, including application, materials, design, testing, inspection, rejection, marking, and shipping. This standard can be referenced in specifications for purchasing and receiving reduced-wall, resilient-seated gate valves for water supply service. The stipulations of this standard apply when this document has been referenced and then only to reduced-wall, resilient-seated gate valves for water supply service. The valves encompassed by this standard require considerations for compatibility with the material being conveyed from both chemical and physical perspectives. Wastewater implies a lack of control over its chemical and physical composition. Valves in compliance with this standard may be suitable for wastewater applications; however, compliance does not ensure manufacturer approval of a specific valve in wastewater applications. Suitability for a specific valve should be determined by analyzing a particular wastewater application in conjunction with the manufacturer.