Sigma 811050012 Galvanized Reducing Tee 2x1-1/2x1-1/2 Fnpt 150lb

Product Description

The SIGMA 811050012 is a malleable iron galvanized reducing tee conforming to FIG 3105R specifications. It features female national pipe taper (FNPT) threaded ends on all three outlets and carries a 150 lb pressure rating. The run measures 2 inches with two 1-1/2-inch branch and outlet connections, making it suitable for branch reductions in threaded pipe assemblies. Plumbers and pipefitters install this fitting in low-pressure gas, water, and air distribution systems where a change in line size is required at a tee junction. The galvanized finish provides corrosion resistance for both indoor and moderate-exposure applications.

This reducing tee is used in residential and light commercial plumbing, fire protection, and industrial piping installations. It is commonly installed where a 2-inch main run feeds into 1-1/2-inch branch lines. The FNPT threads allow direct connection to standard NPT threaded pipe and fittings without adapters. Typical applications include water supply, compressed air, and approved gas distribution systems in buildings where threaded malleable iron fittings are specified or required by code.

Key Features

• Malleable iron construction rated at 150 lb for durability in threaded pipe systems
• FIG 3105R reducing tee pattern with 2-inch run and 1-1/2-inch branch and outlet
• FNPT threads on all three connections for standard NPT compatibility
• Hot-dip galvanized finish for corrosion resistance
• Suitable for use in water, air, and approved gas piping assemblies

Compatibility

Designed as an OEM-style replacement and standard threaded fitting for 150 lb malleable iron piping systems using 2-inch by 1-1/2-inch by 1-1/2-inch NPT threaded pipe.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC). Shut off and depressurize the piping system completely before removing or installing any threaded fittings. Apply an approved thread sealant or PTFE tape to all male NPT threads before assembly. Do not over-torque threaded connections, as malleable iron fittings can crack under excessive force.

Technical Specifications

• Figure Number: FIG 3105R
• Nominal Size: 2 x 1-1/2 x 1-1/2 inches
• End Style: FNPT (Female National Pipe Taper)
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811050012