Parker 165CA-3 Brass Compression Tube Union 1900 Psi

Product Description

The PARKER 165CA-3 is a brass compression tube union designed to join two compression-end tube lines in a single, leak-resistant connection. Built from brass, this union handles maximum working pressures up to 1900 psi and operates across a wide temperature range of -65 degrees F to 250 degrees F. It is used in fluid and gas distribution systems across HVAC, refrigeration, plumbing, and industrial service applications. Licensed plumbers, HVAC technicians, and pipefitters typically install this fitting wherever a straight inline union connection is needed between two compression-end tube runs.

This fitting suits residential and light commercial installations where compression-style tube connections are the specified end connection type. Typical applications include copper or compatible tubing systems in refrigeration lines, plumbing supply runs, and pneumatic or hydraulic control circuits that require a removable, serviceable union joint. The compression x compression configuration allows technicians to make connections without soldering or brazing, making it a practical choice for retrofit and repair work in occupied spaces or where open-flame work is restricted.

Key Features

• Brass construction for corrosion resistance and durability in fluid and gas service
• Compression x compression end connections on both sides for tool-accessible, solder-free installation
• Rated to 1900 psi maximum working pressure
• Wide service temperature range: -65 degrees F to 250 degrees F
• Union configuration allows disassembly and reconnection without cutting the tube

Compatibility

Designed as an OEM-style replacement or new-installation fitting for compression-end tube systems in HVAC, plumbing, refrigeration, and industrial fluid service applications.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified pipefitter. Shut off system pressure and depressurize the line before disassembling any existing fitting or installing this union. Ensure tube ends are cut square, deburred, and fully seated against the fitting body before tightening compression nuts. Do not overtighten compression nuts; follow the fitting manufacturer's standard turn-past-finger-tight procedure for the tubing material and diameter in use.