Sigma 811029412 Fig 3105 Pipe Tee 1/4 Inch Fnpt 150 Lb

Product Description

The SIGMA 811029412 is a FIG 3105 straight pipe tee rated at 150 lb, constructed from galvanized malleable iron for durable, corrosion-resistant performance. With a 1/4 inch nominal size and female NPT (FNPT) end connections on all three ports, this tee is designed for threaded pipe assemblies in low-pressure gas, water, and general plumbing distribution systems. Licensed plumbers and pipefitters install this fitting where a branch connection off a straight run is required. The galvanized finish provides added protection against rust in wet or exposed installations.

This fitting is suited for residential and light commercial plumbing, gas distribution, and industrial piping applications where a 150 lb malleable iron threaded tee is specified. The straight tee configuration allows equal-size branching off a main run at 90 degrees. It is commonly found in supply-line manifolds, compressed air systems, and low-pressure steam or water distribution where FNPT connections are standard practice.

Key Features

• 1/4 inch nominal FNPT connections on all three ports for standard threaded pipe assembly
• 150 lb pressure class malleable iron construction for reliable service in low-pressure systems
• Galvanized finish provides corrosion resistance in wet and exposed environments
• Straight tee layout delivers equal 90-degree branch connection off the main run
• FIG 3105 pattern conforms to recognized malleable iron pipe fitting standards

Compatibility

Designed as an OEM-style replacement or new-installation threaded fitting for 1/4 inch nominal FNPT pipe systems rated at 150 lb, including residential and light commercial plumbing and gas piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly, and tighten to hand-snug before using a pipe wrench. Do not over-torque malleable iron fittings, as the material can crack under excessive force. Shut off and depressurize the system completely before removing or installing any threaded fitting.

Technical Specifications

• Nominal Size: 1/4 inch
• End Style: FNPT (Female National Pipe Thread)
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Configuration: Straight Tee
• Figure Number: FIG 3105

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811029412