Nibco 9036100 Cast Copper Flush Adapter 3/4 in C X M

Product Description

The NIBCO 9036100 is a cast copper flush adapter designed to transition between copper tubing with a sweat connection and a male threaded fitting in a pressure piping system. The adapter connects a copper cup end (C) to a male threaded outlet (M), making it a standard solution for joining copper pipe runs to threaded components such as valves, service ports, or equipment connections. At 3/4 inch in size, it fits the most common residential and light commercial piping diameters. Licensed plumbers install this fitting as part of potable water, hydronic heating, and general pressure piping assemblies. The cast copper construction provides durability and reliable sweat-solder performance under normal service conditions.

This flush adapter is used in residential and light commercial plumbing systems where a 3/4 inch copper sweat connection must terminate at a male threaded fitting. Typical applications include water supply lines, boiler piping, and mechanical room distribution headers where a soldered copper-to-threaded transition is required. The pressure fitting style is rated for use in standard water supply and heating pressure piping and is not intended for gas service unless separately listed for that use.

Key Features

• Cast copper construction for consistent wall thickness and reliable sweat-solder joints
• C x M end connection transitions a sweat cup end to a male threaded outlet
• 3/4 inch fitting size suits the most common residential and commercial piping runs
• Pressure fitting style rated for standard water supply and hydronic pressure service
• Compact flush adapter profile reduces installed length in tight spaces

Compatibility

Designed as an OEM-style replacement and new-installation fitting for 3/4 inch copper pressure piping systems requiring a sweat cup to male threaded transition.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and ASTM B88 copper tube standards. Shut off the water supply and fully depressurize and drain the line before cutting, fitting, or soldering. Clean and flux all mating surfaces before applying heat, and use lead-free solder where required by code for potable water systems. Do not overtighten the threaded male connection; use appropriate thread sealant or tape rated for the service application.