Midland Industries 51021 1/4 in Sch 80 Ss Pipe Nipple

Product Description

The MIDLAND INDUSTRIES 51021 is a seamless Schedule 80 pipe nipple designed for high-pressure piping systems in commercial and industrial applications. Machined from 304 stainless steel, it measures 1-1/2 inches in length with 1/4 in male pipe thread (MPT) connections on both ends. The Schedule 80 wall thickness and 3000 psi pressure class rating make this nipple suitable for demanding service conditions. Thread form follows ANSI/ASME B1.20.1 standards, ensuring consistent fit with standard pipe fittings and valves. Plumbers, pipefitters, and mechanical contractors use this type of nipple to make close or short extensions in threaded piping assemblies.

This nipple is rated for use with air, water, oil, natural gas, and steam media, making it a versatile component across HVAC, plumbing, gas distribution, and light industrial piping systems. Its 304 stainless steel construction provides corrosion resistance in wet, chemical-exposure, or outdoor environments where carbon steel fittings would be unsuitable. The 1/4 in diameter and 1-1/2 in length make it a practical choice for compact manifold assemblies, gauge ports, and instrument connections where space is limited.

Key Features

• 304 stainless steel seamless construction for corrosion resistance and strength
• Schedule 80 wall thickness rated to 3000 psi pressure class
• 1/4 in MPT on both ends with 1/4-18 thread form per ANSI/ASME B1.20.1
• Compatible with air, water, oil, natural gas, and steam service
• 1-1/2 in overall length suits compact piping and instrument connections

Compatibility

Rated for use with air, water, oil, natural gas, and steam media. Designed as an OEM-style replacement or standard component for SCH 80 threaded piping assemblies using 1/4 in NPT fittings and valves conforming to ANSI/ASME B1.20.1.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified mechanical technician. Depressurize and isolate the piping system fully before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the intended media before assembly. Tighten to snug plus wrench-tight using a pipe wrench - do not overtighten, as stainless steel threads can gall if excessive force is applied.