Midland Industries 59187SMLS Pipe Nipple 2-1/2in Mpt 6in Sch 80

Product Description

The MIDLAND INDUSTRIES 59187SMLS is a seamless steel pipe nipple rated for Schedule 80 service in black finish. It measures 6 inches in length with a 2-1/2 inch outside diameter and features male pipe thread (MPT) connections on both ends. Wall thickness is 0.276 inches, providing the added strength required for high-pressure applications. Rated to 2,500 psi at a 300 lb pressure class, this nipple is built to handle demanding fluid and gas conveyance tasks. Licensed plumbers and pipefitters install this fitting in industrial, commercial, and heavy-duty mechanical systems where standard-wall nipples are not rated for the required service pressure.

This nipple is suited for black iron piping systems used in natural gas distribution, steam lines, compressed air, and hydraulic fluid conveyance. Its SCH 80 wall rating makes it appropriate for installations requiring elevated pressure tolerance above standard SCH 40 service. The seamless construction eliminates a weld seam, which is often a requirement in high-cycle or vibration-prone environments. Thread dimensions conform to ANSI B1.20.1, ensuring compatibility with standard NPT fittings and valves across a wide range of system configurations. Operating temperature range is -200 to 150 degrees F.

Key Features

• Seamless steel construction eliminates weld-seam failure points in high-pressure service
• Schedule 80 wall thickness of 0.276 inches rated to 2,500 psi and 300 lb pressure class
• 2-1/2 in MPT on both ends with 2-1/2-8 thread form, conforming to ANSI B1.20.1
• Thread engagement length of 1.57 inches for secure, leak-resistant makeup
• Black finish suitable for gas and steam piping applications
• Operating temperature range of -200 to 150 degrees F

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 2-1/2 inch NPT black iron piping systems operating under Schedule 80 service conditions.

Installation Notes

This fitting is installed by licensed plumbers or pipefitters following applicable code requirements such as the International Fuel Gas Code (IFGC) or International Plumbing Code (IPC). Shut off and depressurize the line completely before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service fluid before making up the joint. Inspect threads for damage before installation and do not overtighten, as seamless steel nipples can crack at the thread roots if cross-threaded or forced.