Midland Industries 59053SMLS Seamless Pipe Nipple Sch 80

Product Description

The MIDLAND INDUSTRIES 59053SMLS is a seamless black steel pipe nipple rated for demanding service in gas, air, and fluid piping systems. Manufactured to Schedule 80 Extra Heavy (XH) wall thickness, this nipple measures 9 inches in length with a 3/8-inch outside diameter and a wall thickness of 0.126 inches. Both ends are male pipe thread (MPT) with a 3/8-18 thread form conforming to ANSI B1.20.1. The 300 lb pressure class and 850 psi working pressure rating make it suitable for high-pressure applications where standard Schedule 40 nipples are inadequate. Licensed plumbers, pipefitters, and gas line technicians are the typical installers for this type of fitting.

This nipple is appropriate for residential and light commercial piping runs where black steel fittings are specified, including natural gas distribution, propane service lines, compressed air systems, and steam or hydraulic applications within its temperature range of -200 to 150 degrees F. The seamless construction eliminates a longitudinal weld seam, reducing potential failure points in pressurized service. It is stocked individually with a minimum order quantity of one, making it practical for single-unit service calls or repair work.

Key Features

• Schedule 80 Extra Heavy (XH) seamless steel construction for elevated pressure service
• 850 psi working pressure rating at 300 lb pressure class
• 3/8-18 MPT threads on both ends, conforming to ANSI B1.20.1
• Wall thickness of 0.126 inches for increased burst and hoop strength over Schedule 40
• Black finish suitable for gas and steam service applications
• Operating temperature range of -200 to 150 degrees F

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8-inch black steel pipe systems using Schedule 80 Extra Heavy seamless nipples in gas, air, steam, or fluid service.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or gas technician in accordance with applicable local codes, IFGC, or IPC requirements. Shut off and depressurize the line completely before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape rated for the service medium to the male threads before assembly. Do not overtighten threaded connections; use a pipe wrench on the fitting body, not on the nipple body itself, to avoid damage.