7.2.6.6.Screwed Malleable-Iron Water Fittings

(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.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.