Midland Industries 59161SMLS Seamless Pipe Nipple Sch 80

Product Description

The MIDLAND INDUSTRIES 59161SMLS is a seamless steel pipe nipple rated for heavy-duty piping applications. It features 2-inch male pipe thread (MPT) on both ends and measures 2-1/2 inches in overall length. Built to Schedule 80 specifications, this nipple carries a 300-pound pressure class rating and is hydrostatically rated to 2500 psi. The wall thickness of 0.218 inches and seamless steel construction make it suitable for demanding installations in gas, steam, and liquid piping systems. Licensed plumbers and pipefitters are the primary installers of this fitting in both residential and commercial settings.

This nipple is designed for use in black iron piping systems, including natural gas distribution, steam lines, and industrial fluid conveyance. Its extra-heavy Schedule 80 rating makes it appropriate for higher-pressure applications where standard Schedule 40 fittings are insufficient. The close-nipple design and 2-1/2-inch body length suit tight-clearance runs between valves, fittings, and threaded equipment connections. Thread form conforms to ANSI B1.20.1, ensuring compatibility with standard NPT threaded pipe and fittings across the industry.

Key Features

• Seamless steel construction rated to 2500 psi at full Schedule 80 wall thickness
• 2-inch MPT on both ends with ANSI B1.20.1 thread form for standard NPT system integration
• Wall thickness of 0.218 inches for extra-heavy duty service
• Black finish suitable for gas and steam piping applications
• Temperature range of -200 to 150 degrees F
• Thread engagement length of 1.06 inches per end, 2-11-1/2 thread specification

Compatibility

Designed as an OEM-style replacement and standard component for 2-inch NPT threaded black iron piping systems conforming to ANSI B1.20.1 thread standards, including gas, steam, and industrial fluid lines requiring Schedule 80 extra-heavy fittings.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, the International Fuel Gas Code (IFGC), or the International Plumbing Code (IPC) as relevant to the service. Shut off and depressurize the piping system fully before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape rated for the intended service medium to all male threads before assembly. Do not over-tighten threaded connections, as seamless steel nipples can crack cast iron fittings if excessive force is applied.