The Ontario Building Code | Screwed Cast Iron Water Fittings

7.2.6.5. Screwed Cast Iron water Fittings

(1) Screwed cast iron water fittings shall conform to ASME B16.4, "Gray Iron Threaded Fittings: Classes 125 and 250".

(2) Screwed cast iron water fittings used in a water system shall be mortarp://thehandyforce.com/exterior/" title ="Exterior home repairs in Toronto">cement-mortar lined or galvanized.

(3) Screwed cast iron water fittings shall not be used in a drainage system.