Parker 4-3 Hbz-ss Compression Tube Union Stainless Steel

Product Description

The PARKER 4-3 HBZ-SS is a compression tube union designed to join two compression-end tube connections in a single inline fitting. Constructed from stainless steel, this union delivers reliable service in demanding fluid and gas distribution systems where corrosion resistance and pressure integrity are critical. It is rated for a maximum working pressure of 10300 psi, making it suitable for high-pressure instrumentation, hydraulic, or pneumatic lines. Licensed plumbers, pipefitters, and instrumentation technicians are the primary installers of this fitting in industrial and commercial environments.

This compression union is used in applications requiring a leak-tight inline tube connection without welding or brazing. Typical installation scenarios include instrumentation tubing runs, process control lines, and high-pressure hydraulic or pneumatic systems in commercial and industrial facilities. The compression x compression end configuration allows the fitting to connect two tube ends of matching size directly, simplifying assembly in tight spaces or retrofit situations.

Key Features

• Stainless steel construction provides corrosion resistance in harsh or wet environments
• Maximum working pressure of 10300 psi suits high-pressure instrumentation and hydraulic applications
• Compression x compression end connections allow tool-assisted assembly without brazing or welding
• Union configuration permits inline tube joining and disassembly for service access
• Compact single-piece fitting minimizes installation footprint in tubing runs

Compatibility

Designed as an OEM-style compression tube union compatible with standard compression-end tubing in matching tube outside diameter for high-pressure fluid and gas distribution systems.

Installation Notes

Installation should be performed by a qualified pipefitter, plumber, or instrumentation technician following applicable codes such as IPC or ASME B31.1 for pressure piping. Depressurize and isolate the line completely before removing or installing any fitting. Use appropriate tube cutters and deburring tools to ensure a clean, square tube end before seating the compression ferrule. Do not overtighten the compression nut, as this can deform the ferrule and compromise the seal.