Midland Industries 59147SMLS Pipe Nipple 1-1/2in Sch 80

Product Description

The MIDLAND INDUSTRIES 59147SMLS is a seamless black steel pipe nipple rated for Schedule 80 service. It connects two 1-1/2-inch male pipe thread (MPT) fittings with a 5-inch body length, making it a direct-connect extension in threaded piping systems. Wall thickness is 0.20 inches, and the part follows ANSI B1.20.1 thread standards with a 1-1/2-11-1/2 thread form. The seamless construction eliminates a longitudinal weld seam, supporting consistent wall integrity under elevated pressure. Plumbers, pipefitters, and mechanical contractors install this type of nipple in gas, steam, air, and liquid piping assemblies.

This nipple is suited for residential and commercial applications where Schedule 80 extra-heavy fittings are required. Typical installations include gas distribution lines, compressed air headers, hydronic heating systems, and industrial fluid transfer piping. The black finish indicates the absence of galvanizing, making this fitting appropriate for natural gas and propane service where galvanized fittings are not permitted by code. Operating temperature range is -200 to 150 degrees F.

Key Features

• Seamless steel construction - no longitudinal weld seam for uniform wall strength
• Schedule 80 (SCH 80) wall rating with 0.20-inch wall thickness
• 1,900 psi working pressure at 300 lb pressure class
• ANSI B1.20.1 thread standard, 1-1/2-11-1/2 NPT thread form
• Black finish - compatible with natural gas and propane piping applications
• 1-1/2-inch MPT on both ends, 5-inch body length

Compatibility

Designed as an OEM-style replacement or new-installation component for Schedule 80 black steel threaded piping systems using 1-1/2-inch NPT connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes including the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off the gas or fluid supply and relieve system pressure before working on any threaded connection. Apply an appropriate thread sealant or PTFE tape rated for the service medium before making up the joint. Do not over-tighten threaded connections, as this can damage the fitting or mating threads.