Parker 264AB-10 Brass Compression Tube Union 400 Psi

Product Description

The PARKER 264AB-10 is a brass compression tube union designed to join two tubing runs with a triple compression connection — compression on both ends and at center. It provides a secure, leak-resistant joint in fluid or gas distribution lines without soldering or threading. With a maximum working pressure of 400 psi and a temperature range of -65 degrees F to 250 degrees F, this fitting handles demanding service conditions across HVAC, plumbing, and instrumentation applications. The 0.533 inch inside diameter accommodates standard half-inch tubing. Licensed plumbers, HVAC technicians, and industrial pipe fitters are the typical installers.

This fitting is suited for residential and light commercial installations where copper or compatible soft tubing must be joined inline. Common applications include refrigerant line repairs, potable water distribution, pneumatic control tubing, and instrumentation plumbing. The all-brass construction resists corrosion in both wet and dry service environments. Its three-point compression design makes it appropriate for installations where torch work is restricted or impractical.

Key Features

• Triple compression end connections — no soldering or threading required
• 400 psi maximum working pressure for demanding fluid and gas service
• Wide temperature range: -65 degrees F to 250 degrees F
• 0.533 inch inside diameter fits standard half-inch tubing
• Brass construction provides corrosion resistance in wet service environments
• Compact union body allows inline tube joining in tight spaces

Compatibility

Designed as an OEM-style replacement or service fitting for compression-style tube union applications using standard half-inch tubing in HVAC, plumbing, and instrumentation systems.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local codes and the IPC or IFGC as relevant. Shut off and depressurize the fluid or gas line fully before disassembling or installing any compression fitting. Cut tubing squarely and deburr the end before inserting into the compression nut to ensure a proper seal. Do not overtighten compression nuts — snug by hand plus a measured fraction of a turn with a wrench is standard practice; consult the tubing manufacturer guidelines for final torque direction.