Parker 165CA-6 Compression Tube Union Brass

Product Description

The PARKER 165CA-6 is a brass compression tube union designed to join two compression-end tubing runs in a single inline fitting. It provides a leak-resistant mechanical connection without soldering or threading the tubing itself. Rated to 1000 psi maximum working pressure and suitable for service from -65 degrees F to 250 degrees F, this union is well-suited for refrigeration lines, pneumatic supply runs, instrumentation tubing, and hydraulic control circuits. Licensed plumbers, HVAC technicians, and instrumentation technicians are the typical installers. The all-brass construction resists corrosion in both wet and dry service environments.

This compression union is used in residential and light commercial applications where a removable, reusable tube connection is required. Typical scenarios include instrument air lines, refrigeration pilot lines, oil supply tubing, and small-bore hydraulic or pneumatic distribution. The compression-by-compression end configuration allows the fitting to union two tube ends of matching size inline without special tooling beyond a tubing cutter and two wrenches.

Key Features

• Compression x Compression end connections for tool-light, solder-free installation
• Brass construction provides corrosion resistance across a wide range of media
• 1000 psi maximum working pressure supports demanding pneumatic and hydraulic service
• Wide temperature range: -65 degrees F to 250 degrees F
• NPTF thread standard for pressure-tight mechanical engagement
• Inline union design allows disassembly and reconnection of tubing runs without cutting

Compatibility

Designed as an OEM-style replacement or new-installation fitting for compression tube assemblies in HVAC, refrigeration, pneumatic, and instrumentation systems requiring a brass union at matching tube sizes.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or instrumentation technician. De-pressurize and isolate the tubing circuit completely before disassembly or fitting installation. Use a tubing cutter to ensure a clean, square tube end, and verify the ferrule seats properly before tightening the compression nut. Do not over-torque the compression nuts; snug plus a controlled fraction of a turn per the fitting manufacturer's guidance is standard practice.

WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.