Midland Industries 59186SMLS Seamless Pipe Nipple Sch 80

Product Description

The MIDLAND INDUSTRIES 59186SMLS is a seamless steel pipe nipple designed for high-pressure piping systems in commercial and industrial applications. Rated at 300 lb and 2500 psi, it handles demanding fluid and gas distribution lines where joint integrity and wall strength are critical. The nipple measures 5.5 inches in overall length with a 2.5-inch diameter and features a Schedule 80 wall thickness of 0.276 inches. Both ends are threaded Male Pipe Taper (MPT) with a 2-1/2-8 thread form conforming to ANSI B1.20.1, with a thread engagement length of 1.57 inches. The black steel construction is standard for gas and industrial service lines.

This nipple is suited for installation in black iron gas piping systems, industrial process lines, steam distribution, and high-pressure fluid systems. The seamless construction eliminates a longitudinal weld seam, which is preferred in applications where consistent wall strength and pressure resistance are required throughout the fitting. It is appropriate for both residential and commercial gas distribution rough-in work, as well as industrial piping installations handled by licensed plumbers, pipefitters, and mechanical contractors.

Key Features

• Seamless steel construction for uniform wall strength and no weld-seam vulnerability
• Schedule 80 wall thickness at 0.276 inches for extra-heavy service
• 2500 psi working pressure rating
• ANSI B1.20.1 compliant thread form for reliable makeup with standard fittings
• Operating temperature range of -200 degrees F to 150 degrees F
• Black finish standard for gas and industrial service piping

Compatibility

Designed as an OEM-style replacement or standard component for black iron Schedule 80 seamless piping systems using 2-1/2 in MPT threaded connections conforming to ANSI B1.20.1.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC) where required. Shut off and depressurize the line fully before disassembly or installation. Apply an appropriate thread sealant or PTFE tape rated for the service medium before making up the joint. Do not over-tighten threaded connections; follow standard pipe makeup practices for the thread size to avoid stress cracking or cross-threading.