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The BMI USA 35434 is a malleable iron black tee fitting designed for threaded pipe assemblies in plumbing, gas distribution, and mechanical piping systems. The reducing tee connects a 3/4-inch run on both ends to a 3/8-inch branch outlet, allowing a single inline tap without additional adapters. The black iron finish is standard for gas service applications. Malleable iron construction provides the ductility and thread engagement strength required for pressure-rated piping work. Licensed plumbers and pipefitters are the typical installers for this type of fitting in both residential and light commercial settings.
This fitting suits residential and light commercial gas piping, compressed air distribution, and general iron pipe systems where a reducing branch connection is needed. The 3/4-inch by 3/4-inch by 3/8-inch configuration is commonly used to tee off a main gas line run to a smaller-diameter branch serving an appliance drop, a secondary valve, or an instrument connection point.
Designed as an OEM-style replacement and standard reducing tee for threaded iron pipe systems using 3/4-inch and 3/8-inch NPT connections.
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) as appropriate to the service. Shut off and depressurize the gas or fluid supply before disassembling any portion of the piping system. Apply an approved thread sealant or PTFE tape rated for the service medium to all threaded joints before assembly. Do not overtighten threaded fittings, as malleable iron threads can be damaged by excessive torque.
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