What is Malleable Iron Pipe Fitting?
Also knows as Black Iron Pipe Fitting, Cast malleable fittings are made in nominal pipe sizes form 1/8″ to 6″. Malleable fittings are available in black iron or galvanized finish. Most common type of fittings are floor flange, bushing, tee, elbows etc. Black Iron Pipe Fittings are available in 150# and 300# pressure rating. Malleable iron fitting, also knows as, plumber pipe fitting, meets the ASTM standard A 197. Threads are cut as per ASME B1.20.1. Galvanized malleable fittings conforms to galvanizing spec ASTM A 153.
Pressure and Temperature Rating for Class 150 and 300 Malleable Fittings
Class 150: 150 psi (1034.25 kPa) Saturated Steam, 300 psi (2068.50 kPa) Liquid and Gas Non-Shock serice at max. 150 deg F (66 C)
Class 300: 300 psi (2068.5 kPa) Saturated Steam – 1/4″ to 1″ 2000 psi – 1 1/4″ to 2″ 1500 psi – 2 1/2″ to 3″ 1000 psi. Liquid and Gas Non-Shock service at max. 150 deg F (66 C).
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Post time: Oct-11-2018