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The B K/MUELLER INDS(IMPORT) 510-434HN is a galvanized steel reducing tee fitting used in threaded pipe systems. It connects a 3/4 inch run on both ends of the tee with a 1/2 inch branch outlet, allowing a controlled reduction in flow at the branch point. The galvanized coating provides corrosion resistance suitable for water supply, gas distribution, and general-purpose plumbing applications. This fitting is installed by licensed plumbers and pipefitters working on residential and light commercial systems where threaded iron or steel pipe is the standard. The package includes 25 units, making it appropriate for contractors completing multi-outlet installations or maintaining job-site stock.
This reducing tee is suited for threaded pipe assemblies in residential and commercial plumbing, HVAC hydronic systems, and general industrial piping. The 3/4 inch by 1/2 inch by 3/4 inch configuration is a common reducing branch size used when a main line needs to feed a smaller-diameter branch line without changing the run size. It is typically found in water distribution headers, gas manifolds, and compressed air lines where branch reduction is required at a single point in the run.
Designed as an OEM-style replacement and standard-fit component for threaded NPT galvanized steel pipe systems in residential and commercial plumbing and gas piping applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing codes and the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC) where applicable. Shut off water or gas supply and depressurize the line fully before removing or installing any threaded fitting. Apply an approved thread sealant or PTFE tape to all male threads before assembly. Do not over-tighten threaded connections, as this can crack the fitting or distort the threads.
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