Sigma 811002211 90 Degree Pipe Elbow 3 in Fnpt 150 Lb

Product Description

The SIGMA 811002211 is a FIG 3101 90-degree pipe elbow rated at 150 lb and designed for threaded piping systems in commercial and industrial plumbing and mechanical applications. Built from galvanized malleable iron, this fitting provides a right-angle change of direction in piping runs while maintaining the durability and corrosion resistance required in demanding environments. The female NPT (FNPT) end style allows for straightforward threaded connections on both ends. At 3 inches nominal pipe size, this elbow is suited for larger-diameter piping systems where reliable, leak-free joints are essential.

This elbow is commonly installed in water supply, fire protection, compressed air, and industrial fluid piping systems. It is appropriate for residential and commercial applications where galvanized malleable iron fittings meet code requirements. Typical install scenarios include mechanical rooms, utility piping, and process piping where direction changes are needed in a main or branch line. Licensed plumbers and pipefitters are the primary installers of fittings in this class.

Key Features

• 90-degree elbow geometry for right-angle direction changes in piping runs
• 3-inch nominal pipe size suits larger-diameter threaded piping systems
• Female NPT (FNPT) threads on both ends for standard threaded connections
• 150 lb pressure rating for use in commercial and industrial service
• Galvanized malleable iron construction for corrosion resistance and long service life

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3-inch nominal threaded pipe systems using standard NPT connections in 150 lb service class applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes, including the International Plumbing Code (IPC) and local jurisdiction requirements. Shut off and depressurize the piping system fully before making or breaking any threaded connections. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten threaded connections, as this can crack the fitting body.

Technical Specifications

• Figure Number: FIG 3101
• Fitting Type: 90 Degree Elbow
• Nominal Pipe Size: 3 inches
• End Style: FNPT (Female National Pipe Thread)
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811002211