Sigma 811001411 90 Degree Malleable Iron Elbow 1-1/4 in Fnpt

Product Description

The SIGMA 811001411 is a FIG 3101 90-degree malleable iron pipe elbow rated at 150 lb with a 1-1/4 inch nominal pipe size and female NPT (FNPT) end connections on both ports. The galvanized finish provides corrosion resistance for use in wet or exposed environments. This fitting redirects piping runs at a 90-degree angle and is threaded for straightforward assembly into standard NPT pipe systems. It is commonly installed by licensed plumbers and pipefitters working on low-pressure gas, water, and general-purpose piping systems.

This elbow is suited for residential and light commercial piping applications where a 90-degree change in direction is required. Typical installations include water distribution, compressed air lines, natural gas supply piping, and hydronic heating systems. The galvanized coating makes it appropriate for both indoor and outdoor above-ground service where moisture exposure is a factor.

Key Features

• 90-degree turn for right-angle direction changes in threaded pipe systems
• 1-1/4 inch nominal FNPT connections on both ends for standard NPT thread engagement
• Malleable iron construction provides strength and impact resistance under pressure
• Galvanized finish resists corrosion in wet and exposed service conditions
• 150 lb pressure rating suitable for low-pressure gas, water, and air service

Compatibility

Designed as an OEM-style replacement fitting for standard 1-1/4 inch NPT threaded pipe systems in residential and light commercial plumbing, HVAC, and gas piping applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, IPC, and IFGC requirements. Shut off and depressurize the supply line before removing any existing fittings. Apply an approved thread sealant or PTFE tape to all male threads before assembly and tighten to hand-tight plus wrench-tight per standard practice. Do not over-torque malleable iron fittings, as this may crack the casting.

Technical Specifications

• Figure Number: FIG 3101
• Fitting Type: 90 Degree Elbow
• Nominal Pipe Size: 1-1/4 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: 811001411