Sigma 811010818 90 Deg Reducing Elbow 2x3/4 in Fnpt 150lb

Product Description

The SIGMA 811010818 is a 90-degree reducing pipe elbow rated at 150 lb, manufactured from galvanized malleable iron for threaded piping systems. It features female NPT (FNPT) ends on both ports, with a nominal size of 2 inches on the run and 3/4 inch on the branch outlet. The galvanized finish provides corrosion resistance in wet or exposed service conditions. This fitting is suited for domestic service and is installed by licensed plumbers and pipefitters working on water, gas, and general-purpose industrial piping systems where a direction change and pipe size reduction are needed at the same connection point.

This elbow is used in residential and light commercial piping installations where a 90-degree turn is required alongside a pipe size reduction. The 2 x 3/4 inch configuration handles transitions from a main line down to a smaller branch line in a single fitting. Typical applications include water distribution, low-pressure steam, air, and gas piping where malleable iron threaded fittings meet system specifications. The 150 lb pressure class covers standard service conditions found in most building mechanical systems.

Key Features

• 90-degree elbow with integral pipe reduction in one fitting — eliminates a separate reducer coupling
• Female NPT threads on both ends for standard threaded pipe connections
• 150 lb pressure class suits residential and light commercial service
• Galvanized malleable iron construction resists corrosion in wet and exposed environments
• Domestic manufacture

Compatibility

Designed as a standard 150 lb malleable iron threaded fitting compatible with 2 inch by 3/4 inch NPT-threaded pipe systems in plumbing, gas, and general mechanical piping applications.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC and IFGC codes for the service type. Shut off and depressurize the system fully before removing or installing any threaded fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly, and hand-tighten before bringing to final torque with pipe wrenches. Do not overtighten malleable iron fittings, as the material can crack under excessive force.

Technical Specifications

• Nominal Size: 2 x 3/4 inches
• End Style: FNPT (Female National Pipe Thread) both ends
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Angle: 90 degrees
• Origin: Domestic

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811010818