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The MIDLAND INDUSTRIES RPB-251 is a 3/4-inch brass ball valve designed for sweat (solder) connections. It provides a reliable quarter-turn shutoff for water and compatible fluid systems. The brass body offers corrosion resistance and durability in both residential and light commercial plumbing applications. Licensed plumbers and pipefitters install this valve as a primary shutoff or isolation point within copper piping systems. The sweat-end configuration requires standard soldering techniques and copper pipe preparation before installation.
This valve is suited for residential and light commercial plumbing systems that use copper pipe. Typical applications include water supply lines, branch shutoffs, and equipment isolation in hydronic or domestic water systems. The 3/4-inch size fits standard 3/4-inch copper tubing and is a common size for main branch lines and fixture supply runs.
Designed as an OEM-style replacement or new-installation brass ball valve for residential and light commercial copper plumbing systems using 3/4-inch sweat connections.
Installation should be performed by a licensed plumber in accordance with applicable local codes and the International Plumbing Code (IPC). Shut off the water supply and fully depressurize and drain the line before soldering. Use proper flux and lead-free solder where required by local code. Allow the valve to cool completely before restoring pressure and checking for leaks.
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