Marketing InformationWARD MFG class 150 malleable iron pipe fittings are made in accordance with ASME B16.3 with threads that meet the requirements of ASME B1.20.1. In addition, WARD MFG fittings have a chamfered opening to allow faster and easier pipe engagement. This feature also protects the threads from damage during handling. All WARD MFG black and galvanized class 150 malleable iron pipe fittings with outlets ranging from 1/2 to 4 in are air tested.