Sigma 810007807 90 Deg Reducing Elbow 3/4x1/2 Fnpt 150lb

Product Description

The SIGMA 810007807 is a 90-degree reducing pipe elbow designed for threaded pipe assemblies in commercial and industrial piping systems. Manufactured from malleable iron with a black oxide finish, this fitting transitions from a 3/4-inch nominal pipe to a 1/2-inch nominal pipe while making a right-angle directional change. It carries a 150 lb pressure rating and uses female National Pipe Taper (FNPT) threads on both ends. Plumbers and pipefitters rely on this type of fitting when routing pipe through tight spaces or when a branch line steps down in size through a 90-degree turn.

This reducing elbow is suited for use in low-pressure gas, steam, water, and air distribution systems where a directional change and pipe size reduction are needed in a single fitting. It is commonly installed in residential and light commercial mechanical rooms, boiler rooms, and utility piping applications. The FNPT thread pattern conforms to standard tapered thread engagement practice, making it compatible with standard threaded pipe and fittings of the same schedule.

Key Features

• 90-degree reducing elbow combines a directional change and size reduction in one fitting
• Malleable iron construction provides strength and impact resistance for threaded piping service
• Black oxide finish offers surface protection against light corrosion
• FNPT threads on both ends for standard tapered pipe thread engagement
• 150 lb pressure class rating suitable for low-pressure piping systems
• 3/4 inch to 1/2 inch nominal size transition eliminates the need for a separate reducing coupling

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 150 lb class threaded malleable iron piping systems using 3/4-inch and 1/2-inch nominal pipe sizes.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) as required by the application. Shut off and depressurize the piping system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before engagement, and tighten to proper engagement depth without over-torquing malleable iron threads. Inspect threads on mating pipe for damage before assembly.

Technical Specifications

• Fitting Type: 90-Degree Reducing Elbow
• Nominal Size: 3/4 x 1/2 inches
• End Style: FNPT (Female National Pipe Taper) both ends
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Black Oxide
• Figure Number: 3101R

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810007807