Midland Industries 51203 Sch 80 Pipe Nipple 3in Mpt 4in Ss

Product Description

The MIDLAND INDUSTRIES 51203 is a seamless Schedule 80 pipe nipple designed for demanding fluid and gas distribution systems. Built from 304 stainless steel, it features 3-inch male pipe thread (MPT) connections on both ends and measures 4 inches in length. The seamless construction eliminates weld seams, reducing the risk of stress fractures and corrosion in high-pressure service. Rated to 3000 psi and conforming to ANSI/ASME B1.20.1 dimensional standards, this nipple is engineered for reliability across a broad range of industrial and mechanical piping applications. Plumbers, pipefitters, and mechanical contractors are the typical installers.

This nipple is suitable for use with air, water, oil, natural gas, and steam service systems. The 304 stainless steel construction provides corrosion resistance in both wet and chemical-exposure environments, making it a common choice in commercial plumbing, industrial process piping, and HVAC hydronic systems where Schedule 80 wall thickness is specified. The 3-8 thread pattern ensures compatibility with standard NPT fittings across these applications.

Key Features

• Seamless 304 stainless steel construction for high corrosion resistance and structural integrity
• Schedule 80 wall thickness rated to 3000 psi working pressure
• 3 in MPT x 3 in MPT connections on both ends
• Conforms to ANSI/ASME B1.20.1 dimensional standards
• Approved for air, water, oil, natural gas, and steam service
• 4 inch length with 3 inch diameter for straightforward in-line installation

Compatibility

Rated for use with air, water, oil, natural gas, and steam service piping systems. Designed as an OEM-style Schedule 80 seamless stainless steel nipple for standard 3-inch NPT threaded piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Plumbing Code (IPC) or ASME B31.3 for process piping. Shut off and depressurize the system 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. Do not over-tighten threaded connections, as stainless steel threads are susceptible to galling.