Sigma 811027218 Street Elbow 1/2 in Mnpt X Fnpt 150 Lb Galvanized

Product Description

The SIGMA 811027218 is a FIG 3104 street elbow designed for threaded pipe systems in plumbing, mechanical, and light industrial applications. This fitting connects male NPT to female NPT ends, allowing a 90-degree directional change without requiring a separate coupling or nipple at the male end. Constructed from galvanized malleable iron, it carries a 150 lb pressure class rating. The galvanized finish provides corrosion resistance for use in water and air service lines. Licensed plumbers and pipefitters install this fitting in both new construction and retrofit work.

This street elbow is suited for residential and commercial gas, water, and compressed air distribution systems where 1/2 inch nominal threaded pipe connections are required. The MNPT x FNPT configuration makes it useful in tight spaces where eliminating an extra fitting reduces overall assembly length. It is a common stock fitting for service plumbers and mechanical contractors working with Schedule 40 threaded pipe systems.

Key Features

• FIG 3104 street elbow geometry with 90-degree change of direction
• 1/2 inch nominal pipe size with MNPT x FNPT end connections
• 150 lb pressure class rating for standard service applications
• Galvanized malleable iron construction for corrosion resistance
• Compact street configuration eliminates the need for an additional nipple

Compatibility

Designed as an OEM-style replacement fitting for 1/2 inch nominal threaded pipe systems using standard NPT connections in 150 lb malleable iron fitting assemblies.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC requirements. Apply thread sealant tape or compound rated for the intended service medium before threading the fitting onto the pipe. Do not overtighten threaded connections, as malleable iron fittings can crack under excessive torque. Shut off and depressurize the system completely before removing or installing any fittings.

Technical Specifications

• Figure Number: FIG 3104
• Nominal Pipe Size: 1/2 inch
• End Style: MNPT x FNPT
• Pressure Class: 150 lb
• Material: Malleable Iron
• Finish: Galvanized

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811027218