- Grey iron castings conform to ASTM A126 and ASTM A48
 - Companion flange dimensions conform to ASME B16.1
 - Hot-dipped galvanized flanges conform to ASTM A153
 - Companion flanges threads conform to ASME B1.20.1
 - Manufacturing facility is ISO 9001:2008
 
Available in Galvanized Upon Request.