B K Mueller 520-506HC Black Street Elbow 45 Deg 1-1/4 in

Product Description

The B K Mueller Industries 520-506HC is a 1-1/4 inch black street elbow with a 45-degree angle, designed for use in threaded black iron pipe systems. Street elbows feature one male-threaded end and one female-threaded end, allowing direct connection without a separate coupling. This fitting is suited for gas distribution, compressed air lines, and industrial piping applications where a directional change is required. Licensed plumbers and pipefitters typically install this type of fitting in both residential and light commercial systems.

This 45-degree street elbow is used where a moderate directional change is needed in a black iron pipe run. The street configuration simplifies installation in tight spaces by eliminating an extra fitting. Common applications include natural gas branch lines, propane distribution, and compressed air systems. The 1-1/4 inch size accommodates moderate flow demands typical of branch supply lines in residential and commercial settings. This fitting ships in a package quantity of 10 units.

Key Features

• 45-degree angle for moderate directional changes in threaded pipe runs
• Street-pattern design with one male and one female threaded end
• 1-1/4 inch nominal pipe size fits standard black iron pipe
• Black finish suitable for gas, air, and industrial piping service
• Sold in a package of 10 for multi-fitting jobs and service stock

Compatibility

Designed as an OEM-style replacement fitting compatible with standard 1-1/4 inch NPT threaded black iron pipe systems used in gas and industrial piping applications.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the IFGC or IPC. Shut off gas or compressed air supply and relieve system pressure fully before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the intended service medium before making up the joint. Do not over-tighten threaded connections, as this can crack fittings or damage threads.