Sigma 811016807 Galvanized Street Elbow 1-1/4 in 150 Lb

Product Description

The SIGMA 811016807 is a FIG 3103 standard street elbow fitting designed for threaded pipe assemblies in plumbing, mechanical, and light industrial piping systems. Constructed from galvanized malleable iron, it provides a 90-degree directional change in a piping run using a male NPT inlet and female NPT outlet on a single compact body. The 150 lb pressure class rating makes it suitable for low-to-medium pressure water, air, and gas distribution lines. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit applications where a standard elbow would require an additional nipple to achieve the same configuration.

This street elbow is used in residential and commercial plumbing, HVAC hydronic piping, compressed air lines, and general mechanical systems. The 1-1/4 inch nominal size fits standard Schedule 40 threaded pipe. The MNPT x FNPT end configuration allows it to thread directly into a female-threaded port or fitting on one end while accepting a male-threaded pipe or nipple on the other, reducing the total number of fittings needed in tight spaces or close-coupled assemblies.

Key Features

• 90-degree street elbow configuration with MNPT x FNPT ends eliminates the need for a separate nipple in many layouts
• Galvanized malleable iron construction provides corrosion resistance in wet or outdoor piping environments
• 150 lb pressure class rating suitable for water, air, and low-pressure gas service
• 1-1/4 inch nominal size compatible with standard Schedule 40 threaded pipe systems
• FIG 3103 standard pattern sizing for straightforward replacement in existing threaded assemblies

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-1/4 inch nominal threaded pipe systems using NPT connections rated at 150 lb class.

Installation Notes

Installation is performed by a licensed plumber or pipefitter following applicable IPC or local mechanical code requirements. Shut off the water supply or depressurize the air or gas line completely before disassembling any threaded connections. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly and tighten to hand-tight plus the number of turns recommended by the sealant manufacturer. Do not over-torque malleable iron fittings, as the material can crack under excessive force.

Technical Specifications

• Figure Number: FIG 3103
• Nominal Size: 1-1/4 inches
• End Style: MNPT x FNPT
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Fitting Angle: 90 degrees

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811016807