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The SIGMA 811049618 is a malleable iron galvanized reducing tee designed for threaded pipe assemblies in low-pressure fluid and gas distribution systems. Manufactured to a 150 lb pressure class, this fitting connects a 2-inch run with a 2-inch run and reduces to a 1/2-inch branch outlet. The female national pipe taper (FNPT) end style provides a reliable threaded connection on all three ports. The galvanized finish offers corrosion resistance for use in both indoor and outdoor piping applications. Licensed plumbers and pipefitters typically install this type of fitting during new construction or system modifications involving black or galvanized pipe networks.
This reducing tee is suited for residential and light commercial piping systems where a branch takeoff at a reduced diameter is required. Typical applications include water distribution, low-pressure steam, air lines, and gas supply piping where malleable iron fittings meet code requirements. The 150 lb pressure class makes it appropriate for standard service conditions found in most building mechanical systems. All three ports feature FNPT threads for compatibility with standard tapered male pipe threads.
Designed as an OEM-style replacement or standard-service fitting for 2 x 2 x 1/2 inch nominal threaded pipe systems using 150 lb malleable iron galvanized fittings.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing and mechanical codes such as the IPC or IFGC. Shut off and depressurize the pipe system completely before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape to the male threads before assembly. Do not over-torque FNPT connections, as malleable iron threads can be damaged by excessive force.
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