Midland Industries 56337 Pipe Nipple 6in Mpt 48in Sch 40 Galvanized

Product Description

The MIDLAND INDUSTRIES 56337 is a welded pipe nipple rated for Schedule 40 service, designed for use in galvanized steel piping systems. It measures 48 inches in length with a 6-inch diameter and features male pipe thread (MPT) connections on both ends conforming to ANSI B1.20.1 thread standards. Wall thickness is 0.154 inches, and the nipple is pressure-rated to 2,500 psi. The galvanized finish provides corrosion resistance suited to water, air, and general-purpose industrial applications. Licensed plumbers and pipefitters are the primary installers for fittings of this size class.

This nipple is used in commercial and industrial piping installations where 6-inch galvanized Schedule 40 steel pipe runs are required. Typical applications include water distribution, fire protection, HVAC hydronic systems, and general industrial fluid handling. The 48-inch body length makes it well suited for spanning longer distances between fittings without requiring additional couplings. Both MPT ends thread directly into standard female-threaded fittings, flanges, or valves.

Key Features

• Schedule 40 wall rating with 0.154-inch wall thickness for standard-duty commercial and industrial service
• 2,500 psi pressure rating for demanding fluid system applications
• 6-8 thread count per inch with 1.06-inch thread engagement length, conforming to ANSI B1.20.1
• Galvanized steel construction for corrosion resistance in wet or outdoor environments
• 48-inch body length reduces the need for additional fittings on long straight runs
• Male pipe thread on both ends for direct connection to standard NPT female fittings

Compatibility

Designed as an OEM-style replacement or new-installation component for 6-inch galvanized Schedule 40 steel piping systems using standard NPT female threaded fittings, flanges, and valves.

Installation Notes

Installation of 6-inch steel pipe nipples should be performed by a licensed plumber or pipefitter in accordance with applicable codes including the IPC and IFGC. Depressurize and isolate the affected piping section completely before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape rated for the service fluid and pressure before threading the nipple into place. Use appropriately sized pipe wrenches and avoid over-tightening, which can crack fittings or distort threads.