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The MUELLER INDUSTRIES 15767 is a wrot copper concentric pipe reducer designed to transition between 1-1/4 inch and 1 inch copper pipe in sweat-connect (C x C) plumbing and HVAC piping systems. Wrot copper construction provides a dense, wrought grain structure that offers reliable pressure performance and clean soldering characteristics. With outside diameters of 1-3/8 inches on the large end and 1-1/8 inches on the small end, this fitting seats flush in standard copper tube assemblies. Licensed plumbers and HVAC piping mechanics install these fittings during new construction, remodel, and system retrofits.
This reducer is suited for residential and light commercial plumbing, hydronic heating, and refrigerant piping applications where a step-down from 1-1/4 inch to 1 inch copper line is required. The C x C end connection is compatible with standard Type K, Type L, and Type M copper tubing. This fitting is sold in a package quantity of 5, making it practical for jobs requiring multiple reductions on the same run.
Designed as an OEM-style replacement and standard-fitment fitting for copper sweat piping systems using 1-1/4 inch and 1 inch nominal copper tube per ASTM standards.
Installation should be performed by a licensed plumber or qualified HVAC piping mechanic in accordance with applicable local plumbing codes and IAPMO or IPC standards. Shut off and depressurize the water or refrigerant system completely before cutting into any existing line. Clean both the fitting socket and tube end with emery cloth and apply flux before soldering or brazing. Do not overheat the fitting, as excessive heat can cause flux burnout and void the joint integrity.
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