Sigma 810027607 Fig 3104 Street Elbow 1 in Mnpt X Fnpt 150 Lb

Product Description

The SIGMA 810027607 is a FIG 3104 malleable iron street elbow designed for threaded pipe assemblies in gas, water, and steam distribution systems. It features a male NPT inlet on one end and a female NPT outlet on the other, allowing a direct elbow connection without a separate coupling. The 150 lb pressure rating suits standard commercial and residential piping applications. The black oxide finish provides basic corrosion resistance for dry or low-moisture environments. Licensed plumbers and pipefitters are the typical installers for this type of threaded fitting.

This street elbow is suited for 1 inch nominal pipe in low-pressure gas lines, water distribution headers, and steam systems operating within 150 lb ratings. The MNPT x FNPT configuration makes it useful where a close-nipple elbow change of direction is needed and space is limited. It is commonly used in mechanical rooms, boiler rooms, and general plumbing rough-in work where black iron fittings are specified.

Key Features

• FIG 3104 street elbow configuration with MNPT x FNPT end style
• 1 inch nominal pipe size for standard threaded pipe assemblies
• 150 lb pressure rating suitable for gas, water, and steam service
• Malleable iron construction for durability in mechanical piping systems
• Black oxide finish for basic corrosion resistance in dry environments

Compatibility

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

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Plumbing Code or International Fuel Gas Code where relevant. Shut off and depressurize the line completely before disassembling any threaded connections. Apply an approved pipe thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten threaded fittings, as malleable iron can crack under excessive torque.