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The BMI USA 35413 is a 5-inch malleable iron pipe tee finished in black, designed for use in threaded piping systems across plumbing, gas distribution, and mechanical installations. Malleable iron construction provides the ductility and strength needed to handle the stresses of threaded assembly and system vibration. At 18.14 pounds, this is a heavy-duty fitting intended for permanent or semi-permanent installations where durability and leak-free connections are critical. Licensed plumbers and pipefitters are the primary installers of fittings at this size class.
The 35413 is suited for residential and commercial piping applications where a standard tee configuration is required to branch a run of pipe. Typical uses include gas supply lines, steam or hot water distribution, compressed air systems, and industrial fluid transfer. The black finish is standard for gas piping applications and is compatible with black iron pipe systems commonly found in commercial and residential gas distribution.
Designed as an OEM-style replacement or new-installation fitting for standard 5-inch threaded black iron pipe systems used in gas, steam, and mechanical piping applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC) depending on the application. Shut off and depressurize the supply line completely before removing any existing fittings or making new connections. Use appropriate thread sealant rated for the media being conveyed — pipe dope or PTFE tape rated for gas service when used on gas lines. Do not over-tighten threaded connections; inspect all joints for leaks before returning the system to service.
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