B K Mueller 588-080HC Black Pipe Nipple 2x8 Inch

Product Description

The B K Mueller Industries 588-080HC is a black steel pipe nipple used to create threaded connections in gas, air, and fluid piping systems. Measuring 2 inches in diameter and 8 inches in length, this close-coupled fitting bridges threaded fittings, valves, and other pipe components in both new construction and retrofit applications. The black finish indicates ungalvanized steel, making it well-suited for gas distribution lines where galvanized coatings are not permitted. This nipple is installed by licensed plumbers, pipefitters, and HVAC technicians working on low-pressure gas, steam, or water systems.

This fitting is commonly used in residential and light commercial piping applications, including natural gas branch lines, propane distribution, compressed air headers, and black iron plumbing assemblies. The threaded ends conform to standard NPT specifications, allowing direct connection to standard pipe fittings, valves, manifolds, and appliance connectors. It is a standard trade-stock item carried for quick assembly of piping runs where a short, rigid nipple is required.

Key Features

• 2-inch nominal diameter with 8-inch body length for short-run piping connections
• Black ungalvanized steel construction suitable for gas line applications
• NPT threaded ends for compatibility with standard pipe fittings and valves
• Sold in a package quantity of 5 units per order
• Rigid steel body resists deflection in fixed piping assemblies

Compatibility

Designed as a standard NPT black steel pipe nipple for use with 2-inch threaded pipe fittings, valves, and couplings in gas, air, steam, or water piping systems.

Installation Notes

Black steel pipe nipples are installed by licensed plumbers, pipefitters, or HVAC technicians. Shut off gas or fluid supply and verify zero pressure before disassembling any existing piping. Apply an appropriate thread sealant or PTFE tape rated for the service medium before making up threaded joints. Gas piping installations must comply with IFGC requirements and local authority having jurisdiction.