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The MIDLAND INDUSTRIES 103475 is a threaded pipe cap rated for 3000 lb pressure service, manufactured from 304L stainless steel. It is designed to close off the end of a 1-inch threaded pipe in high-pressure piping systems. The 1-11-1/2 NPT thread ensures a secure, leak-resistant connection. At 0.75 pounds, it is a compact fitting intended for installation by licensed plumbers, pipefitters, or mechanical contractors working on industrial, commercial, or process piping systems where corrosion resistance and elevated pressure ratings are required.
This cap is suited for applications in industrial process lines, chemical handling systems, oil and gas piping, and other high-pressure environments where stainless steel fittings are specified for corrosion resistance. It terminates a 1-inch threaded pipe run and is commonly installed during system commissioning, maintenance shutdowns, or pressure testing procedures. Its 304L stainless steel construction makes it appropriate for systems exposed to moisture, mild chemicals, or sanitary process conditions.
Designed as an OEM-style threaded pipe cap for use in 1-inch, 3000 lb class stainless steel piping systems conforming to standard NPT thread specifications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes. Depressurize and isolate the pipe section completely before installing or removing any threaded fitting. Apply an appropriate thread sealant or PTFE tape rated for the service fluid and pressure class. Do not over-tighten, as this can stress the fitting threads and compromise the seal.
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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