Midland Industries 40125 Brass Pipe Nipple 1-1/4 Mpt 4 in

Product Description

The MIDLAND INDUSTRIES 40125 is a seamless red brass pipe nipple designed for fluid and gas piping systems where corrosion resistance and pressure integrity are required. It features 1-1/4 in male pipe thread (MPT) connections on both ends and measures 4 inches in length. Constructed from lead-free red brass to Schedule 40 dimensions, this nipple carries a 125 lb pressure class rating and is rated for 690 psi at 100 degrees F. The wall thickness is 0.146 inches, with an inside diameter of 1.368 inches and an outside diameter of 1.66 inches. Plumbers and pipefitters use this fitting in both domestic water and industrial piping applications where lead-free brass is specified.

This nipple suits residential and light commercial plumbing, hydronic heating, and compressed air systems. It is appropriate for installations where operating temperatures range from -20 to 400 degrees F. The 1-1/4-11-1/2 thread pitch conforms to ANSI B1.20.1, making it a standard drop-in fit for NPT-threaded valves, couplings, tees, and other fittings of the same diameter. Its seamless construction reduces the risk of porosity-related leaks in pressure service.

Key Features

• Lead-free red brass construction meets current plumbing code requirements for potable water systems
• Schedule 40 wall thickness rated to 690 psi at 100 degrees F
• Seamless body eliminates weld-seam porosity common in welded nipples
• 1-1/4-11-1/2 thread conforms to ANSI B1.20.1, WW-N-351, and MS 51846 standards
• Wide service temperature range of -20 to 400 degrees F suits steam and hot-water applications
• 125 lb pressure class fits standard NPT valve and fitting assemblies

Compatibility

Designed as an OEM-style replacement and standard component for 1-1/4 in NPT-threaded plumbing, hydronic, and compressed-air piping assemblies requiring a Schedule 40 brass nipple.

Installation Notes

Installation is performed by a licensed plumber or pipefitter. Shut off and depressurize the system completely before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to the male threads in accordance with IPC and local code requirements. Do not over-torque brass fittings, as excess force can crack the fitting body or distort threads.