(1)
Screwed malleable-iron water fittings shall conform to ASME B16.3, “Malleable Iron Threaded Fittings: Classes 150 and 300.”
(2)
Screwed malleable-iron water fittings used in a water system shall be cement-mortar lined or galvanized.
(3)
Screwed malleable-iron water fittings shall not be used in a drainage system.