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The BMI USA 4415 is a lead-free brass nipple designed for use in potable water and general plumbing systems. Nipples serve as short threaded connectors between fittings, valves, and pipe sections, allowing plumbers to extend or offset runs in tight spaces. This fitting measures 0.5 inches in diameter and 1.5 inches in length, placing it in the close-nipple category commonly used where minimal spacing is required. The lead-free brass construction meets drinking water compliance standards, making it suitable for both residential and light commercial potable water applications. Licensed plumbers and pipefitters are the primary installers of this type of fitting.
This nipple is appropriate for residential and commercial plumbing installations where a short, threaded male connector is needed between two female-threaded ports. Typical applications include connecting valves to supply lines, joining fittings at water heaters, boilers, or distribution manifolds, and making up assemblies under sinks or in mechanical rooms. The 0.5-inch diameter is one of the most common sizes found in residential water supply systems.
Designed as an OEM-style replacement or standard fitting for residential and light commercial plumbing systems using 0.5-inch female-threaded connections.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before removing or installing any threaded fitting. Apply pipe thread sealant or PTFE tape to male threads before assembly and tighten to a snug fit using appropriate pipe wrenches. Do not overtighten brass fittings, as brass threads can be damaged by excessive torque.
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