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The ASC ENGINEERED SOLUTIONS 310523204 is a black malleable iron threaded tee fitting rated for Schedule 80 service at 300 PSI. It connects 1-1/4 inch run piping with a 1/2 inch branch outlet, using standard NPT threads on all three ports. Malleable iron construction provides the ductility and impact resistance needed for mechanical and industrial piping systems. Licensed plumbers and pipefitters install this fitting in gas distribution, compressed air, and general fluid service lines where Schedule 80 pressure ratings are required.
This tee is suited for residential and commercial piping applications involving black iron gas lines, industrial compressed air distribution, and steam or fluid systems operating within the pressure and temperature limits of Schedule 80 malleable iron fittings. The threaded ends allow connection to standard NPT pipe without welding or soldering, making it compatible with typical threaded pipe assemblies in new construction and retrofit work.
Designed as an OEM-style replacement or standard fitting for Schedule 80 black iron threaded piping systems using 1-1/4 inch run and 1/2 inch branch connections.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Shut off and depressurize the line completely before disassembling or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to male NPT threads before assembly, and tighten to hand-tight plus the appropriate number of turns using pipe wrenches. Do not over-torque malleable iron fittings, as the material can crack under excessive force.
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