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The BMI USA 35550 is a malleable iron black pipe tee designed for threaded piping systems in plumbing, gas, and mechanical applications. This fitting connects three pipe runs at a branch point, allowing flow to be split or combined within a pipeline. The 35550 is finished in black, which is standard for gas-service fittings, and is constructed from malleable iron for strength and resistance to mechanical stress at threaded joints. Licensed plumbers and pipefitters install this type of fitting during rough-in and service work on gas lines, steam systems, and industrial fluid piping.
This tee is sized at 2 x 1 x 2 inches, accommodating two run ports at 2 inches and a branch port at 1 inch. It suits residential and light commercial gas distribution piping, steam heating systems, and general-purpose threaded iron piping networks where a reducing branch connection is required.
Designed as an OEM-style replacement or standard fitting for threaded malleable iron piping systems requiring a reducing tee connection.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC) where relevant. Shut off and depressurize the piping system completely before removing or installing any fittings. Apply an appropriate thread sealant or tape rated for the service type before engaging threads, and hand-tighten before finishing with a pipe wrench. Do not over-tighten malleable iron fittings, as excessive force can crack the casting.
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