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The MIDLAND INDUSTRIES 48233 is a Schedule 40 welded pipe nipple constructed from 304 stainless steel and designed for threaded piping systems requiring corrosion resistance and pressure-rated performance. This nipple measures 12 inches in length with a 4-inch diameter and features male pipe thread (MPT) connections on both ends. It carries a 150 psi pressure rating and conforms to ANSI B1.20.1 dimension standards. The 4-8 thread specification and SCH 40 wall thickness make it suitable for demanding industrial and commercial plumbing applications. Plumbers and pipefitters install this component as a standard extension or connection piece within stainless steel piping systems.
This nipple is intended for commercial and industrial plumbing systems where corrosion resistance, sanitary compliance, or chemical compatibility is required. Typical installations include process piping, water supply, steam, and fluid transfer lines in facilities where carbon steel fittings are not appropriate. The 4-inch MPT x 4-inch MPT configuration allows direct threaded engagement with standard 4-inch fittings, valves, and equipment flanges across a wide range of Schedule 40 piping assemblies.
Designed as an OEM-style replacement or standard component for Schedule 40 stainless steel threaded piping systems using 4-inch NPT-compatible fittings and valves.
Installation is performed by licensed plumbers or qualified pipefitters. De-pressurize and drain the piping system fully before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service fluid before engaging threads. Tighten to proper engagement using a strap wrench or pipe wrench sized for 4-inch pipe, and verify for leaks before returning the system to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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