Bk Mueller 583-480HC Black Pipe Nipple Sch 40 1/2 X 48 in

Product Description

The BK MUELLER 583-480HC is a Schedule 40 black steel pipe nipple used to create threaded connections in gas, air, and water piping systems. Measuring 0.5 inches in diameter and 48 inches in length, this nipple is manufactured from welded steel with a black finish coating. It carries NPT threads sized at 0.5 inches and conforms to ASME B1.20.1 and ASTM A733 standards. Licensed plumbers, pipefitters, and HVAC technicians install this nipple as a close or extension fitting wherever a longer-run threaded connection is required between fittings, valves, or equipment tappings in commercial and residential piping.

This nipple is commonly installed in residential and light commercial gas distribution lines, black iron water supply systems, compressed air distribution headers, and HVAC equipment connections. The 48-inch length makes it well suited for spanning longer distances between fittings without requiring a union or coupling mid-run. Its welded construction and black finish are standard for gas piping applications in above-ground, interior installations where corrosion protection is maintained through the existing mill coating.

Key Features

• Schedule 40 wall thickness rated for standard service pressures in gas and water piping
• Welded steel construction meets ASTM A733 material requirements
• NPT threads conform to ASME B1.20.1 for leak-free threaded assembly
• Black finish coating provides baseline corrosion protection for interior installations
• 48-inch length reduces fitting count on longer straight runs

Compatibility

Designed as a standard NPT-threaded black iron pipe nipple for use with Schedule 40 fittings, valves, and couplings in 0.5-inch pipe size gas, air, and water piping systems.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or HVAC technician in accordance with applicable local codes, IFGC requirements for gas piping, and IPC requirements for water systems. Shut off the gas or water supply and relieve system pressure completely before cutting into or modifying any existing piping. Apply an approved thread sealant or PTFE tape to the male NPT threads before assembly and tighten to the appropriate number of turns past hand-tight using a pipe wrench. Do not over-tighten, as this can crack fittings or distort threads.