B K/mueller Inds(import) 520-204HN 3/4 in Black 45 Deg Elbow

Product Description

The B K/MUELLER INDS(IMPORT) 520-204HN is a 3/4 inch black malleable iron 45 degree equal elbow designed for threaded pipe assemblies in gas, air, and general industrial piping systems. This fitting redirects flow at a 45 degree angle without reducing pipe diameter, maintaining consistent flow characteristics through the line. It ships in a package quantity of 10 units, making it practical for contractors stocking fittings for multiple jobs. Plumbers, pipefitters, and mechanical contractors install this type of fitting in both residential and light commercial applications where a moderate directional change is needed in a threaded iron pipe run.

This 45 degree elbow is suited for use in black iron pipe systems typically found in natural gas distribution, propane lines, compressed air distribution, and general-purpose industrial piping. The equal-end configuration accepts the same pipe size on both ends, simplifying layout and procurement. It is appropriate for above-ground installations in residential and commercial mechanical rooms, utility spaces, and equipment connections where threaded black iron pipe is the specified material.

Key Features

• 45 degree turn angle allows gradual directional change with less flow restriction than a 90 degree elbow
• Equal-end design accepts 3/4 inch threaded pipe on both connections
• Black iron finish suited for gas and air service applications
• Sold in a package of 10 for multi-connection or multi-job supply
• Threaded connections compatible with standard NPT pipe threading

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/4 inch threaded black iron pipe systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters working on threaded iron pipe systems. Shut off and depressurize the pipe system completely before making or breaking any threaded connections. Apply an appropriate thread sealant or PTFE tape rated for the service type before threading the fitting onto the pipe. Gas line installations must comply with applicable local codes and IFGC requirements and should be pressure-tested and inspected before returning the system to service.