Parker 165C-8 Compression Tube Union 1/2 in Od Brass 200 Psi

Product Description

The PARKER 165C-8 is a brass compression tube union designed to join two lengths of tubing in a straight-line connection without welding or flaring. It uses compression-style end connections on both sides, creating a secure, leak-resistant joint rated for up to 200 psi working pressure and a temperature range of -65 degrees F to 250 degrees F. The body is machined from brass and conforms to SAE J-512 standards. This fitting is a common choice for refrigeration, HVAC, and fluid-transfer lines where a reusable, tool-friendly tube connection is required by licensed technicians working on both service and new-installation work.

This union fitting is suited for residential and light commercial applications where 1/2 inch OD tubing must be coupled inline. Typical install scenarios include refrigerant line connections, fuel line assemblies, and hydraulic or pneumatic tubing runs operating within the pressure and temperature limits of this fitting. Its compression-on-both-ends configuration means no special flare tooling is needed on either side of the joint, which simplifies service in tight spaces.

Key Features

• Compression x compression end connections — no flaring or welding required
• Brass construction for corrosion resistance and reliable tube grip
• Rated to 200 psi maximum working pressure
• Wide service temperature range: -65 degrees F to 250 degrees F
• Conforms to SAE J-512 standard
• 11/16-20 thread size for positive, repeatable makeup

Compatibility

Designed as an OEM-style replacement or service fitting for 1/2 inch OD tubing systems where SAE J-512 compression unions are specified. Consult system documentation to confirm tube OD and pressure ratings before installation.

Installation Notes

Installation is typically performed by licensed HVAC technicians or plumbers using standard compression fitting hand tools — no flare tool or torch is required. De-pressurize and isolate the tubing circuit completely before disassembling any existing fittings or installing this union. Ensure tube ends are cut square, deburred, and fully seated before tightening the compression nuts to avoid leaks. Follow applicable codes such as ASHRAE, IFGC, or local mechanical codes for the specific fluid or refrigerant being conveyed.