Ductile iron threaded pipe fittings are UL Listed and FM Approved at 500 psi.
Rated to 300 WSP.
Castings conform to ASTM A536.
Pipe fitting dimensions conform to ASME B16.3.
Bushings and plugs conform to ASME B16.14.
Pipe fittings are 100% air tested.
NPT threads on all fittings conform to ASME B1.20.1.
Independent lab verification that fittings meet applicable chemical & physical properties.
Manufacturing facilities are ISO 9001:2008 and ISO 14001.