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The ASC Engineered Solutions 810031609 is a 4-inch black malleable iron tee fitting designed for use in threaded pipe systems. Constructed from malleable iron with a black coating, this tee provides a three-way branch connection in standard piping runs. It is suited for gas distribution, compressed air, fire protection, and industrial piping applications where a durable, code-compliant threaded fitting is required. Licensed plumbers, pipefitters, and mechanical contractors typically specify malleable iron tees at branch points in pressurized systems. The fitting weighs 11.03 pounds and meets the dimensional expectations of standard black iron pipe fittings.
This tee is appropriate for residential and commercial piping systems where black iron threaded connections are specified. Common installation scenarios include natural gas supply lines, propane distribution headers, compressed air manifolds, and steam or hydronic heating branch lines. It is installed at points where a run pipe must split or where a lateral branch must be introduced into an existing piping run.
Designed as an OEM-style replacement fitting for 4-inch threaded black iron pipe systems. Suitable for use wherever standard black malleable iron threaded tee fittings are specified.
Installation should be performed by a licensed plumber, pipefitter, or mechanical contractor in accordance with applicable codes such as the IFGC or ASME B16.3. Before assembly, shut off and depressurize the supply line completely. Apply an approved thread sealant or PTFE tape rated for the intended service to all threaded connections. Do not overtighten threaded joints, and verify all connections for leaks after pressurization.
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