Kennedy Valve AWWA C509 Resilient Wedge Gate Valves meet or exceed the requirements of AWWA standard C509, UL-262/FM-1120/1130, ULC-Underwriters' of Canada, and NSF Certified. Available in either non-rising stem (NRS) or outside screw and yoke (OS&Y). NRS style is available with post plate for adaptation with an indicator post.