Sigma 810042010 Malleable Iron Pipe Tee 3/4x3/4x1 in Fnpt 150lb

Product Description

The SIGMA 810042010 is a reducing malleable iron pipe tee finished in black oxide, designed for use in threaded pipe assemblies requiring a branch connection at a reduced or varied outlet size. The tee measures 3/4 x 3/4 x 1 inch nominal, with female national pipe taper (FNPT) threads on all three ports, and is rated for 150 lb service. The black oxide finish provides baseline corrosion resistance for dry or indoor installations. Plumbers and pipefitters install this fitting in gas, air, and water distribution systems where a branch takeoff is needed from a main run.

This tee is suited for residential and light commercial piping applications including natural gas distribution, compressed air lines, and non-corrosive liquid systems. The reducing configuration — 3/4 inch run ports with a 1 inch branch port — allows integration between pipe mains of differing nominal sizes without additional reducing bushings in many layouts. It is threaded into place using standard pipe wrenches and compatible with standard NPT-threaded pipe, nipples, and fittings throughout the assembly.

Key Features

• 3/4 x 3/4 x 1 inch nominal reducing tee configuration for branching between different pipe sizes
• FNPT threads on all three ports for standard threaded pipe connections
• 150 lb pressure class rating suitable for gas, air, and water service
• Malleable iron construction provides strength and thread integrity under torque
• Black oxide finish for basic corrosion resistance in dry indoor environments

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 3/4 inch and 1 inch NPT-threaded pipe systems in 150 lb malleable iron fitting assemblies.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including IFGC and IPC requirements for threaded pipe assemblies. Shut off and depressurize the pipe system completely before disassembling or installing any fittings. Apply an approved thread sealant or PTFE tape to the male threads before make-up, and tighten with a pipe wrench to achieve a leak-free mechanical connection. Do not overtighten malleable iron fittings, as the material can crack if excess force is applied.

Technical Specifications

• Nominal Size: 3/4 x 3/4 x 1 inches
• End Style: FNPT (Female National Pipe Taper) all ports
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Black Oxide

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810042010