Sigma 810030007 Fig 3105 Pipe Tee 3/4 in Fnpt 150 Lb Malleable Iron

Product Description

The SIGMA 810030007 is a FIG 3105 straight pipe tee rated at 150 lb, designed for use in threaded pipe assemblies across residential and commercial plumbing, gas distribution, and steam or air piping systems. Constructed from malleable iron with a black oxide finish, this tee provides a durable, corrosion-resistant connection point wherever a branch takeoff is required in a straight run. The 3/4 inch nominal size features female national pipe taper (FNPT) threads on all three ports, allowing quick assembly with standard threaded pipe and fittings. Licensed plumbers and pipefitters typically install this fitting in low-pressure fluid, gas, and steam lines.

This fitting is suited for use in 150 lb class threaded pipe systems handling water, steam, air, gas, and other compatible media. The straight tee configuration splits or combines flow at a 90-degree branch from the main run. It is commonly found in boiler rooms, mechanical rooms, light industrial installations, and residential gas or water supply rough-ins where a reliable, code-recognized malleable iron fitting is required.

Key Features

• 150 lb pressure class rating suitable for a wide range of low-pressure piping applications
• Malleable iron construction provides impact resistance and durability over cast iron alternatives
• Black oxide finish offers basic corrosion protection in dry and mildly humid environments
• FNPT threads on all three ports ensure compatibility with standard NPT threaded pipe
• FIG 3105 straight tee geometry allows equal-size branch takeoff from the main pipe run
• 3/4 inch nominal size fits one of the most common pipe sizes in commercial and residential systems

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/4 inch nominal NPT threaded pipe systems rated at 150 lb class.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and IFGC or IPC requirements for the intended service. Shut off and depressurize the pipe system completely before disassembling or installing any threaded fittings. Apply a listed thread sealant or PTFE tape to male NPT threads before assembly, and tighten to a wrench-tight engagement without over-torquing malleable iron threads. Inspect all joints for leaks before returning the system to service.

Technical Specifications

• Figure Number: FIG 3105
• Fitting Type: Straight Pipe Tee
• Nominal Size: 3/4 inch
• End Style: FNPT (Female National Pipe Taper)
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Black Oxide

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810030007