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The HOLYOKE FITTINGS 113-815 is a short brass nipple designed for low-pressure pipe connections in plumbing, HVAC, and general fluid-handling systems. Measuring 0.5 inches in diameter and 1.5 inches in length, this nipple provides a reliable threaded connection between fittings, valves, and pipe sections. Its brass construction offers solid corrosion resistance and machinability, making it well-suited for water, air, and compatible fluid service. Licensed plumbers and pipefitters install this type of fitting as part of standard threaded pipe assemblies in both new construction and retrofit work.
This nipple is appropriate for residential and light commercial plumbing and mechanical systems where 0.5-inch threaded connections are required. Common applications include connecting shut-off valves, unions, elbows, and tee fittings in water supply lines, hydronic heating systems, and compressed air distribution piping. It is sold in box quantities of 10, making it practical for service contractors and supply house stocking.
Designed as an OEM-style replacement or stock fitting for standard 0.5-inch threaded pipe assemblies in residential and commercial plumbing and mechanical systems.
Installation should be performed by a licensed plumber in accordance with the applicable plumbing code, such as the IPC or local equivalent. Shut off water supply and relieve system pressure before removing or installing any threaded fittings. Apply thread sealant tape or compound to male threads before assembly and tighten to hand-tight plus wrench-tight using a pipe wrench or strap wrench. Do not overtighten brass fittings, as brass threads can be damaged by excessive torque.
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