Midland Industries 59015SMLS Seamless Pipe Nipple Sch 80

Product Description

The MIDLAND INDUSTRIES 59015SMLS is a seamless black steel pipe nipple rated for Schedule 80 extra-heavy (XH) service. It connects two 1/8-inch male pipe thread (MPT) ports and measures 10 inches in overall length with a 0.094-inch wall thickness. Built to a 300-pound pressure class and rated to 850 psi, it handles demanding gas, air, and fluid distribution runs where thin-wall fittings are not acceptable. The seamless construction eliminates a weld seam, making it the preferred choice in high-pressure or vibration-prone lines. Plumbers, pipefitters, and gas technicians install this fitting in commercial and industrial piping systems.

This nipple is suited for residential and commercial piping installations where SCH 80 fittings are specified, including natural gas, propane, compressed air, and steam distribution at low diameters. Its black steel finish indicates it is not galvanized, making it standard practice for gas service per most local codes. The 1/8-27 thread form conforms to ANSI B1.20.1, ensuring compatibility with standard NPT fittings and valves. It is a common component in tight-clearance manifold assemblies and branch-line connections where the small 1/8-inch diameter is required.

Key Features

• Seamless construction - no weld seam for consistent wall integrity under pressure
• SCH 80 / Extra Heavy (XH) wall rating at 0.094 inches thick
• Rated to 850 psi and 300-pound pressure class
• Temperature range: -200 to 150 degrees F
• 1/8-27 NPT thread form per ANSI B1.20.1
• Black steel finish - standard for gas and non-galvanized piping applications

Compatibility

Designed as an SCH 80 extra-heavy seamless replacement nipple for standard 1/8-inch NPT piping systems using ANSI B1.20.1 thread-form fittings and valves.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or gas technician. Shut off and depressurize the line completely before removing or installing any threaded fitting. Apply an appropriate pipe thread sealant or PTFE tape rated for the service medium - never use an incompatible sealant on gas lines. Verify that local mechanical and gas codes permit black steel pipe in the intended application before installation.