AWWA C515-20 Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service
SKU: 43515-2020
This standard covers reduced wall, resilient-seated gate valves with non-rising stems (NRS) and outside screw-and-yoke (OS&Y) rising stems, including tapping gate valves, for water supply service having a temperature range of 33ºF to 125ºF (0.6ºC to 52ºC).
Description
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.