Sigma 811028208 Fig 3104 Street Elbow 2 in Mnpt X Fnpt 150 Lb

Product Description

The SIGMA 811028208 is a FIG 3104 galvanized malleable iron street elbow rated for 150 lb service. It features a 2-inch nominal size with a male NPT (MNPT) inlet and a female NPT (FNPT) outlet, allowing a direction change without requiring a separate coupling. The galvanized finish provides corrosion resistance for use in wet or exposed environments. This fitting is a standard choice for piping systems where space is limited and a compact, single-piece elbow connection is preferred. Licensed plumbers and pipefitters install this type of fitting in gas, water, and general-purpose piping assemblies.

This street elbow is suited for residential and light commercial piping applications where a 90-degree directional change is needed in a threaded pipe system. The MNPT x FNPT configuration allows the fitting to thread directly into another female-threaded fitting or pipe end, eliminating the need for an additional nipple. It is commonly used in gas distribution lines, water supply runs, and compressed air systems where 150 lb malleable iron fittings meet system pressure and material requirements.

Key Features

• 2-inch nominal size suits common commercial and residential pipe runs
• MNPT x FNPT end style enables direct connection without an additional nipple
• 150 lb pressure rating appropriate for standard gas, water, and air service
• Malleable iron construction offers strength and impact resistance in threaded fittings
• Galvanized finish provides corrosion resistance in wet or exposed installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 2-inch threaded malleable iron piping systems rated at 150 lb.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IPC or IFGC. Shut off and depressurize the piping system completely before threading or unthreading any fittings. Apply an approved thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten; hand-snug followed by wrench tightening to achieve a leak-free seal is standard practice.

Technical Specifications

• Figure Number: FIG 3104
• Nominal Size: 2 inches
• End Style: MNPT x FNPT
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811028208