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The BMI USA 6103 is a 3/8 inch lead-free brass union designed for threaded pipe connections in plumbing and mechanical systems. This fitting creates a demountable joint between two sections of pipe, allowing for easy disconnection without cutting or unthreading the entire line. Constructed from lead-free brass, it meets modern potable water compliance standards. Plumbers and pipefitters install this type of union when future serviceability of a connection point is required, such as at equipment shutoffs, water heaters, or branch line tees. The compact, durable construction suits both residential and light commercial applications.
This union is suited for threaded plumbing installations where a 3/8 inch connection is required. Typical applications include supply lines to fixtures, appliances, and mechanical equipment in residential and commercial buildings. The lead-free brass construction makes it appropriate for use in potable water systems where compliance with lead-free material standards is required by code. Licensed plumbers working on water supply rough-in or finish trim are the primary installers of this fitting.
Designed as an OEM-style replacement or standard-use threaded union fitting for 3/8 inch NPT plumbing systems in residential and light commercial applications.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before disassembling or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to male threads before assembly. Do not overtighten, as this can crack brass fittings or distort threads.
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