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The SUPERLOK 4321000750 is a Schedule 40 welded pipe nipple constructed from 304L stainless steel. It measures 1 inch in nominal pipe diameter and 3 inches in overall length. This nipple is used to connect two threaded fittings or extend a threaded pipe run in fluid and gas piping systems. The 304L alloy provides reliable corrosion resistance in a wide range of process and utility applications. Plumbers and pipefitters install this type of fitting in both above-ground and below-grade configurations wherever a short, fixed-length threaded connector is required.
This welded nipple is suited for residential and commercial piping installations where stainless steel fittings are specified for corrosion resistance or sanitary requirements. Typical applications include water supply lines, process piping, HVAC hydronic systems, and general industrial plumbing. The Schedule 40 wall thickness meets standard pressure ratings for low- to medium-pressure service in pipe sizes up to 1 inch nominal diameter.
Designed as an OEM-style replacement or standard component for Schedule 40 stainless steel threaded piping systems using 1 inch nominal pipe connections.
Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC code requirements for the service type. Shut off and depressurize the system before removing or installing any threaded fittings. Apply appropriate thread sealant or PTFE tape to male threads before assembly. Do not over-torque threaded connections, as this can crack fittings or damage 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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