Sigma 811010206 90 Deg Reducing Elbow 2x1.5 in Fnpt 150lb

Product Description

The SIGMA 811010206 is a FIG 3101R 90-degree reducing pipe elbow rated for 150 lb service, manufactured from galvanized malleable iron. It transitions from a 2-inch nominal inlet to a 1.5-inch nominal outlet using female NPT (FNPT) threading on both ends. The galvanized finish provides corrosion resistance for use in wet or exposed piping environments. This type of fitting is typically installed by licensed plumbers or pipefitters working on low-pressure water, gas distribution, or general industrial piping systems where a directional change and pipe size reduction are needed in a single fitting.

This reducing elbow suits residential and light commercial piping applications where 90-degree directional changes are required alongside a pipe size step-down. It is commonly used in water supply lines, fire protection piping, and general industrial pipe assemblies. The FNPT end style allows direct threaded assembly onto standard NPT-threaded pipe without adapters, making it a straightforward replacement or new-installation fitting in conventional threaded pipe systems.

Key Features

• 90-degree elbow with integral reducing geometry — handles direction change and size transition in one fitting
• 2-inch x 1.5-inch nominal FNPT threading on both ends for standard NPT pipe compatibility
• 150 lb pressure class rating suitable for low-pressure water and gas service
• Malleable iron construction provides strength and impact resistance over cast iron alternatives
• Galvanized finish resists corrosion in wet, damp, or outdoor-exposed installations

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded malleable iron pipe systems using standard NPT connections in 2-inch to 1.5-inch nominal pipe sizes.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC code requirements. Shut off and depressurize the pipe system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to all male NPT threads before assembly, and tighten to hand-tight plus the number of turns appropriate for the pipe material — do not overtighten malleable iron fittings as cracking can occur. Inspect the galvanized coating on cut or threaded areas and touch up with cold galvanizing compound where coating has been removed.

Technical Specifications

• Fitting Type: 90 Degree Reducing Elbow
• Figure Number: FIG 3101R
• Nominal Size: 2 x 1.5 inches
• End Style: FNPT (Female National Pipe Thread) both ends
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811010206