Sigma 810001818 Fig 3101 Pipe Elbow 2 Inch 150 Lb Fnpt

Product Description

The SIGMA 810001818 is a FIG 3101 malleable iron 90-degree pipe elbow rated for 150 lb service. It features female National Pipe Taper (FNPT) end connections on both ports and a 2-inch nominal pipe size. The black finish is standard for malleable iron fittings used in non-corrosive piping systems. This elbow is used to change flow direction in threaded pipe assemblies and is installed by licensed plumbers, pipefitters, and mechanical contractors working on low-pressure piping systems.

This fitting is suited for residential and light commercial piping applications including gas distribution, water supply, and general-purpose piping where 150 lb malleable iron fittings are specified. The 2-inch nominal size makes it a common choice for branch and main-line connections in threaded black iron gas piping systems. The FNPT threading allows direct connection to standard NPT-threaded pipe and fittings without adapters.

Key Features

• 2-inch nominal pipe size with FNPT connections on both ends
• 150 lb pressure class rating for low-pressure piping service
• Malleable iron construction for strength and machinability
• Black finish standard for gas and industrial piping applications
• FIG 3101 designation for straightforward spec matching and replacement sourcing

Compatibility

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

Installation Notes

Installation should be performed by a licensed plumber or pipefitter following applicable IPC or IFGC code requirements. Shut off and depressurize the piping system completely before removing or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape to male threads before assembly. Do not over-torque threaded connections, as malleable iron fittings can crack under excessive force.

Technical Specifications

• Nominal Pipe Size: 2 inches
• End Style: FNPT (Female National Pipe Taper)
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Black
• Figure Number: FIG 3101

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810001818