Midland Industries 57111 Pipe Nipple 1in Mpt 8in Sch 40 Steel

Product Description

The MIDLAND INDUSTRIES 57111 is a welded black steel pipe nipple designed for threaded pipe assemblies in gas, plumbing, and industrial piping systems. It features male pipe thread (MPT) connections on both ends with a 1-inch nominal diameter and an overall length of 8 inches. Built to Schedule 40 standards, the wall thickness measures 0.133 inches, supporting a rated working pressure of 700 psi. The thread length on each end is 0.98 inches, conforming to ANSI B1.20.1 dimensional standards. Licensed plumbers and pipefitters install this fitting in new construction and retrofit applications where a rigid, short-run connection between threaded components is required.

This nipple is suited for residential and light commercial piping where black steel is the specified material - commonly in natural gas supply lines, steam systems, and general industrial fluid transfer. The Schedule 40 wall rating makes it appropriate for moderate-pressure service. Its close-cut length of 8 inches fits standard between-fitting spans without the need for field cutting or threading, saving time on the job.

Key Features

• Double-ended MPT threading conforms to ANSI B1.20.1 for consistent fitment with standard threaded fittings
• Schedule 40 wall at 0.133 inches thick rated to 700 psi working pressure
• Black steel construction suited for gas and steam service
• Operating temperature range of -150 to 200 degrees F
• 8-inch overall length eliminates field threading on fixed-length runs
• 1-inch nominal diameter with 0.98-inch thread engagement on each end

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 1-inch NPT threaded pipe assemblies in Schedule 40 black steel piping systems.

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 applicable. Shut off the gas or fluid supply and relieve system pressure before making any threaded connections. Apply an appropriate thread sealant or PTFE tape rated for the service medium before hand-tightening and wrench-making the joint. Do not over-torque threaded steel fittings, as this can crack adjacent cast fittings or distort the threads.