Parker 165CA-2 Brass Compression Tube Union 5/16-24

Product Description

The PARKER 165CA-2 is a brass compression tube union designed to join two compression-end tubing runs in a single inline fitting. It accepts 5/16-24 inch thread and uses compression-to-compression end connections on both sides, creating a secure, leak-resistant joint without soldering or flaring. Rated for a maximum working pressure of 2800 psi and a temperature range of -65 degrees F to 250 degrees F, this union suits demanding hydraulic, pneumatic, and fluid-transfer applications. HVAC technicians, plumbers, and fluid-system mechanics install this type of fitting when connecting or repairing tubing runs that require a removable, reusable joint.

The 165CA-2 is suited for residential and commercial applications wherever inline tubing connections are required. Common install scenarios include refrigeration line sets, hydraulic control circuits, pneumatic instrumentation lines, and general-purpose fluid plumbing. The compression-by-compression configuration makes it practical for fieldwork where a torch-free connection method is preferred or required. The NPTF thread standard ensures a pressure-tight mechanical seal. This fitting is typically installed as part of new construction, system modification, or a repair splice in an existing tubing run.

Key Features

• Compression x compression end connections on both sides for torch-free installation
• Brass construction provides corrosion resistance in fluid and refrigerant service
• Rated to 2800 psi maximum working pressure for high-pressure system use
• Wide operating temperature range: -65 degrees F to 250 degrees F
• 5/16-24 thread size with NPTF thread standard for a pressure-tight mechanical seal
• Inline union design allows for easy tubing removal and reassembly

Compatibility

Designed as an OEM-style compression tube union for hydraulic, pneumatic, refrigeration, and general fluid-transfer tubing systems requiring a 5/16-24 compression fitting.

Installation Notes

Installation should be performed by a qualified technician familiar with compression fitting assembly and the applicable system codes, including NEC or IFGC references where fluid or refrigerant lines intersect mechanical systems. Depressurize and isolate the tubing circuit fully before disassembling or installing this fitting. Hand-tighten the compression nut first, then use an appropriately sized wrench to snug the fitting without overtightening, which can distort the ferrule and compromise the seal. Inspect the tubing end for burrs or ovality before insertion to ensure a proper compression seat.