Parker 8-4 Hbz-ss Compression Tube Union Ss 6300 Psi

Product Description

The PARKER 8-4 HBZ-SS is a stainless steel compression tube union designed to join two compression-end tube lines in a single inline fitting. It creates a secure, leak-resistant connection rated to 6300 psi maximum working pressure, making it suitable for high-pressure fluid and gas systems. The all-stainless steel construction resists corrosion in demanding environments. This type of fitting is installed by licensed plumbers, pipefitters, and industrial maintenance technicians working on process piping, instrumentation lines, and hydraulic or pneumatic tubing systems.

This union is intended for applications where two compression-end tube runs must be coupled inline without welding or threading. Typical install scenarios include instrumentation tubing, hydraulic control lines, chemical feed systems, and high-pressure pneumatic circuits in both industrial and commercial settings. The compression-by-compression end configuration allows connection on both sides using standard compression ferrule sets appropriate to the tubing outside diameter.

Key Features

• Maximum working pressure rated to 6300 psi for high-pressure service
• Stainless steel construction for corrosion resistance in aggressive media and environments
• Compression x Compression end connections on both sides for tool-assisted, no-weld installation
• Union configuration allows inline tube joining and future disassembly for service
• Compact single-piece body minimizes dead volume in instrumentation and process lines

Compatibility

Designed as an OEM-style compression tube union for use in high-pressure instrumentation, hydraulic, and process piping systems requiring stainless steel fittings with compression end connections.

Installation Notes

Installation is typically performed by a licensed pipefitter, plumber, or instrumentation technician. De-pressurize and isolate the line completely before removing or installing any compression fitting. Ensure tubing outside diameter is clean, burr-free, and properly supported before seating the ferrule. Follow applicable codes such as ASME B31.3 for process piping or the relevant system design specification for torque and assembly sequence guidance.