Parker 8-4 Hbz-b Brass Compression Tube Union 2200 Psi

Product Description

The PARKER 8-4 HBZ-B is a brass compression tube union designed to join two compression-end tube lines in a single inline connection. It provides a leak-resistant mechanical seal without soldering or special tooling, making it a reliable choice for instrument, hydraulic, and fluid-handling applications. Rated to 2200 psi maximum working pressure, this union is built for demanding service conditions. The all-brass construction resists corrosion in a wide range of media. Plumbers, HVAC technicians, and instrumentation specialists install this fitting where a permanent or semi-permanent tube-to-tube connection is required.

This compression tube union is suited for residential and commercial plumbing, HVAC refrigerant or fluid lines, pneumatic instrument tubing, and industrial process piping where two compression-end tubes must be coupled inline. The compression-by-compression end connections accept standard compression ferrule and nut assemblies on both sides. It is commonly installed in tight spaces where a union-style disconnect is needed without cutting into soldered or threaded runs.

Key Features

• All-brass construction for corrosion resistance in fluid and gas service
• 2200 psi maximum working pressure rating for high-pressure applications
• Compression x Compression end connections on both sides for tool-efficient assembly
• Union design allows inline disconnection without disturbing adjacent fittings
• No soldering or brazing required during installation

Compatibility

Designed as an OEM-style compression tube union for inline tube connections requiring compression-by-compression end fittings rated to high working pressures. Swagelok equivalent part number B-810-6-4 is listed as a cross-reference in supplier data.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation mechanic. Depressurize and isolate the line completely before disassembling or installing any compression fitting. Ensure tubing ends are cut square, deburred, and fully bottomed in the fitting body before tightening the compression nut. Follow applicable code requirements including IPC or IFGC guidelines for the fluid or gas being conveyed.