C.I. Threaded fittings are UL, cUL listed and Factory Mutual approved for 300psi servce. Gray iron per ASTM 126 class B. Dimensions conform to ANSI B 16.4 Class 125 except plugs conform to ASME B 16,14. Threads are NPT per ANSI/ASME B1.20.1.
documents and resources
technical data sheets