Midland Industries 57203 Pipe Nipple 3in Mpt Sch 40 Black Steel

Product Description

The MIDLAND INDUSTRIES 57203 is a Schedule 40 black steel welded pipe nipple designed for threaded pipe assemblies in gas, air, and fluid distribution systems. It features 3-inch male pipe thread (MPT) connections on both ends with an overall length of 4 inches. Wall thickness is 0.216 inches, providing the structural integrity needed to handle working pressures up to 2500 psi. The thread length measures 1.64 inches per end, conforming to ANSI B1.20.1 dimensional standards. Licensed plumbers, pipefitters, and HVAC technicians are the typical installers for this type of fitting in commercial and industrial piping runs.

This nipple is suited for residential and commercial applications where black steel threaded pipe is required. Common uses include natural gas supply lines, compressed air distribution, fire suppression headers, and steam or hydraulic systems operating within the rated temperature range of -150 to 200 degrees F. The black steel construction and Schedule 40 rating make it a standard choice for gas piping rough-in work and industrial pipe fabrication where galvanized fittings are not specified.

Key Features

• Schedule 40 wall thickness of 0.216 inches rated to 2500 psi working pressure
• 3-inch MPT connections on both ends conforming to ANSI B1.20.1 thread standards
• Overall length of 4 inches with 1.64-inch thread engagement per end
• Black steel construction suitable for gas, air, steam, and fluid service
• Temperature rated from -150 to 200 degrees F
• Welded construction for consistent wall integrity throughout the nipple body

Compatibility

Designed as a standard OEM-style replacement or new-installation fitting for Schedule 40 black steel threaded pipe systems using 3-inch NPT connections per ANSI B1.20.1.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, IFGC requirements for gas service, or ASME B31 standards for pressure piping. Shut off and depressurize the system completely before making or breaking any threaded connection. Apply an appropriate thread sealant or PTFE tape rated for the service medium before assembly. Do not overtighten threaded connections, as this can crack fittings or damage threads.