

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The B K/MUELLER INDS(IMPORT) 588-030HN is a black steel pipe nipple sized at 2 inches by 3 inches. Pipe nipples are short threaded sections of pipe used to connect two fittings, valves, or other components in a piping system. This nipple is manufactured from black steel, making it well suited for gas distribution, steam, and industrial fluid piping applications. Licensed plumbers and pipefitters typically install this type of fitting when assembling or extending threaded iron pipe systems. The black finish is standard for gas lines and non-potable fluid service where corrosion resistance from galvanizing is not required.
This nipple is appropriate for use in residential and light commercial piping systems, particularly in natural gas and propane supply lines, steam heating systems, and industrial process piping. It installs between threaded fittings, valves, or equipment connections where a short close coupling is needed. The 2-inch nominal pipe size accommodates higher-flow applications in gas manifolds, boiler connections, and similar service points. Packaged in a quantity of 5 per unit, it is practical for contractors stocking common fittings on service vehicles or in shop inventory.
Designed as a standard-thread replacement or new-installation fitting compatible with 2-inch NPT threaded piping systems using black iron or steel pipe components.
Black pipe nipples are installed by licensed plumbers or pipefitters following applicable code requirements, including IFGC provisions for gas piping and IPC standards for fluid service. Shut off the gas or fluid supply and relieve system pressure before removing or installing any threaded pipe fitting. Apply an approved thread sealant or PTFE tape rated for the service medium before making up the connection. Do not over-tighten threaded connections, as this can crack fittings or damage threads.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!