Sigma 810001206 Malleable Iron Black Pipe Elbow 1 in Fnpt

Product Description

The SIGMA 810001206 is a FIG 3101 malleable iron pipe elbow rated for 150 lb service. It features a 1-inch nominal size with female national pipe taper (FNPT) threaded ends on both ports. This standard 90-degree elbow is used to change the direction of a threaded pipe run in low-pressure fluid, gas, or steam systems. The black finish indicates it is uncoated rather than galvanized, making it common in gas piping and fire sprinkler systems. Licensed plumbers, pipefitters, and gas fitters are the typical installers for this fitting class.

This elbow is suited for residential and light commercial piping applications where threaded malleable iron fittings are specified. Common uses include natural gas distribution lines, steam heating systems, compressed air systems, and water distribution piping that operates within the 150 lb pressure class. The 1-inch nominal size fits standard Schedule 40 threaded pipe of the same nominal diameter. Black malleable iron fittings of this type are widely specified on gas supply lines inside buildings where local codes permit threaded iron pipe.

Key Features

• FIG 3101 standard 90-degree elbow geometry for direction changes in threaded pipe runs
• 1-inch nominal FNPT threaded ends for connection to standard tapered male pipe threads
• 150 lb pressure class rating suitable for steam, gas, air, and water service
• Malleable iron construction provides strength and impact resistance over cast iron
• Black finish for use in gas piping and non-corrosive dry applications

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 1-inch nominal threaded malleable iron piping systems rated at 150 lb service class.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or gas fitter in accordance with applicable codes such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off and depressurize the system completely before disassembling or threading any fitting. Apply an approved pipe thread sealant or PTFE tape rated for the service medium before making up the threaded joint. Do not over-tighten malleable iron fittings, as the material can crack under excessive force.

Technical Specifications

• Figure Number: FIG 3101
• Nominal Size: 1 inch
• End Style: FNPT (Female National Pipe Taper)
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Black

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 810001206