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The MIDLAND INDUSTRIES 62420B is a 3-inch outside-diameter machined coupling with female pipe thread (FPT) connections on both ends, rated for 150 lb pressure service. Constructed from 304 stainless steel, it provides corrosion resistance across a wide range of fluid and gas applications. The 3-8 thread specification ensures a secure, leak-resistant connection when properly installed. With an outer diameter of 3.76 inches and a body length of 3.23 inches, this fitting is sized for full-port, straight-run connections in demanding plumbing and piping systems. Licensed plumbers and pipefitters are the typical installers in both commercial and industrial settings.
The 62420B is suitable for use with air, water, oil, natural gas, and steam, making it a versatile choice across HVAC piping, process plumbing, and industrial fluid systems. Its 150 lb pressure class rating aligns with standard ANSI 150 service requirements common in commercial and light industrial piping. The 304 stainless steel construction makes it appropriate for corrosive or high-moisture environments where carbon steel or malleable iron fittings would be unsuitable. It falls within the 150-pound stainless steel fittings category and is classified as an OD machined coupling.
Rated for use with air, water, oil, natural gas, and steam systems. Designed as an OEM-style 150 lb pressure class fitting for 3-inch female pipe thread connections in stainless steel piping assemblies.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC codes for the service fluid involved. Isolate and depressurize the line completely before removing any existing fitting or installing this coupling. Apply an appropriate thread sealant or PTFE tape rated for the intended service fluid, including natural gas or steam where applicable. Do not overtighten; follow standard wrench-makeup practices for threaded stainless steel fittings to avoid galling the threads.
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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