B K/mueller Inds(import) 520-300HC Black 90 Street Elbow

Product Description

The B K/MUELLER INDS(IMPORT) 520-300HC is a black 90-degree street elbow designed for low-pressure gas and piping applications where a compact directional change is needed. A street elbow has one male end and one female end, allowing it to thread directly into a fitting without an additional nipple. This configuration saves space and reduces the number of connections in tight runs. The 1/8 inch size suits small-diameter branch lines and instrument connections. This fitting is typically installed by licensed plumbers and gas fitters working on residential and light commercial piping systems.

This street elbow is used in black iron piping systems, most commonly on natural gas and propane distribution lines, as well as low-pressure air and steam lines in commercial and industrial settings. The 90-degree angle makes it suitable for transitioning pipe runs around corners or into equipment connections. The 1/8 inch size is frequently found at burner orifices, gas valve inlets, and pressure gauge ports. It is sold in a package quantity of 25 units, making it practical for contractors stocking service vehicles or completing multi-point installations.

Key Features

• 90-degree street elbow configuration with one male and one female threaded end
• 1/8 inch pipe size fits small-diameter branch and instrument connections
• Black finish consistent with standard black iron gas piping systems
• Sold in a package quantity of 25 units for contractor-level supply
• Compact design reduces fitting count in tight piping runs

Compatibility

Designed as an OEM-style replacement and standard-use fitting for 1/8 inch black iron threaded piping systems in residential and light commercial gas and low-pressure piping applications.

Installation Notes

Installation should be performed by a licensed plumber or gas fitter in accordance with applicable codes, including the International Fuel Gas Code (IFGC) for gas piping applications. Shut off the gas supply and verify zero pressure at the work point before disassembling or threading any fittings. Apply an approved thread sealant or PTFE tape rated for gas service to all male threads before assembly. Avoid over-tightening, as black iron fittings can crack under excessive torque.