B K/mueller Inds(import) 588-045HC Black Pipe Nipple

Product Description

The B K/MUELLER INDS(IMPORT) 588-045HC is a black steel pipe nipple measuring 2 inches in diameter by 4.5 inches in length. It serves as a short threaded connector used to join sections of pipe or to connect pipe to fittings, valves, and other threaded components in a piping system. This type of nipple is commonly installed by licensed plumbers and HVAC technicians working on gas distribution, steam, or water systems where black steel pipe is the specified material. The black finish is the standard mill coating applied to carbon steel pipe and is not a protective corrosion coating.

Black steel pipe nipples like the 588-045HC are used in residential and commercial applications including natural gas supply lines, propane distribution, steam heating systems, and some industrial fluid transfer setups. They are not rated for potable water use. The 2-inch diameter and 4.5-inch length make this nipple suitable for close-quarter connections where a longer run of pipe is not required but a standard close nipple is too short.

Key Features

• 2-inch nominal diameter with 4.5-inch overall length for short-run threaded connections
• Black steel construction standard for gas and steam piping applications
• NPT-threaded ends on both sides for compatibility with standard threaded fittings
• Sold in a package quantity of 5 units
• Unit weight supports use in structural piping configurations requiring rigid connections

Compatibility

Designed as a standard NPT threaded black steel pipe nipple for use with 2-inch black iron fittings, valves, and couplings in gas, steam, and non-potable fluid piping systems.

Installation Notes

Installation of black steel pipe nipples on gas lines must be performed by a licensed plumber or gas fitter in accordance with the International Fuel Gas Code (IFGC) and applicable local codes. Apply an approved pipe thread sealant or PTFE tape rated for gas service before threading the nipple into fittings. Shut off the gas supply and confirm zero pressure before disassembling any existing piping. Do not use black steel nipples on potable water or compressed air systems without verifying local code allowance.