Sigma 810038711 Malleable Iron Pipe Tee 3/4x1/2x3/4 in 150 Lb

Product Description

The SIGMA 810038711 is a reducing malleable iron pipe tee rated at 150 lb, finished in black oxide. It connects three sections of pipe in a T-configuration, with a 3/4-inch run on both the inlet and outlet and a 1/2-inch branch outlet. The black oxide finish provides basic corrosion resistance for indoor and dry-environment applications. Malleable iron construction gives this fitting the ductility to withstand mechanical stress and threaded assembly without cracking. Licensed plumbers and pipefitters install this fitting in threaded piping systems where a branch takeoff is required at a reduced diameter.

This tee is suited for residential and light commercial piping systems carrying gas, steam, water, or air within the pressure rating of the fitting. The reducing branch outlet allows a main 3/4-inch line to feed a 1/2-inch branch without a separate reducer fitting. Typical installations include gas distribution piping, hydronic heating systems, and general-purpose black iron pipe assemblies. The 150 lb pressure class meets common requirements for low-pressure steam and gas service.

Key Features

• Reducing tee configuration: 3/4 x 1/2 x 3/4 inch nominal, eliminating a separate reducer at the branch
• 150 lb pressure class suitable for low-pressure steam, gas, and water service
• Malleable iron construction provides ductility and resistance to mechanical stress
• Black oxide finish for corrosion resistance in dry and indoor environments
• Threaded connections compatible with standard NPT pipe threading

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 150 lb threaded black iron pipe systems with 3/4-inch run and 1/2-inch branch connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing and mechanical codes, including IFGC requirements where the fitting is used in gas service. Shut off and depressurize the piping system completely before removing or installing any threaded fitting. Apply an approved pipe thread sealant or PTFE tape to all male threads before assembly. Do not over-torque threaded joints, as excessive force can crack the fitting or damage threads.

Technical Specifications

• Nominal Size: 3/4 x 1/2 x 3/4 inches
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Black Oxide
• Connection Type: Threaded (NPT)
• Fitting Type: Reducing Tee

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810038711