Sigma 810030205 Fig 3105 Pipe Tee 1 in Fnpt 150 Lb Malleable Iron

Product Description

The SIGMA 810030205 is a FIG 3105 straight pipe tee designed for threaded pipe systems in commercial and industrial plumbing and mechanical applications. This fitting features female national pipe thread (FNPT) connections on all three ports and is rated for 150 lb service. Constructed from black malleable iron, it provides reliable strength and durability in standard pipe configurations. The 1-inch nominal size suits a wide range of common pipe runs. Licensed plumbers and pipefitters install this type of fitting during rough-in work, repairs, and system expansions where a straight branch takeoff is required.

This tee is suited for use in gas distribution, water supply, and general piping systems where FNPT malleable iron fittings meet the specified pressure class. It is commonly used in residential and light commercial construction as well as industrial maintenance settings. The black finish is standard for gas service applications, though compatibility with specific media should be verified against applicable codes before installation.

Key Features

• 1-inch nominal size with FNPT connections on all three ports
• 150 lb pressure class rating for standard service applications
• Malleable iron construction for strength and thread integrity
• Black finish suitable for gas piping applications
• FIG 3105 straight tee configuration provides a full inline branch connection

Compatibility

Designed as an OEM-style replacement and standard fitting for 1-inch FNPT malleable iron pipe systems rated at 150 lb service class.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off supply pressure and depressurize the line before beginning work. Apply appropriate thread sealant or PTFE tape to all male threads before making up connections. Do not over-tighten; use a pipe wrench sized appropriately for 1-inch fittings to achieve a proper seal without damaging the casting.

Technical Specifications

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

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810030205