Parker 6-4 Hbz-b Brass Compression Tube Union 2300 Psi

Product Description

The PARKER 6-4 HBZ-B is a brass compression tube union designed to join two compression-end tubing runs in a single inline fitting. It provides a leak-resistant mechanical connection without soldering or welding, making it a practical choice for instrument, refrigeration, and fluid-system plumbing. Constructed from brass conforming to ASME-SB75 and ASTM-B75 standards, this union is rated to 2300 psi maximum working pressure. At 1.71 inches overall length and weighing 0.11 pounds, it fits in tight installations where a compact, reliable union is needed. Licensed plumbers, HVAC technicians, and instrumentation fitters are the typical installers.

This compression union is suited for residential and light commercial plumbing, HVAC refrigerant line accessories, pneumatic control tubing, and instrumentation piping where compression fittings are the specified end connection. Both ends accept compression-style tube connections, allowing a straight union between two tubing segments without any special tooling beyond a tubing cutter and wrenches. Its brass construction handles a wide range of compatible fluid and gas media commonly found in these trade applications.

Key Features

• Compression x Compression end connections on both ends for tool-accessible, no-solder joining
• Brass construction per ASME-SB75 and ASTM-B75 for corrosion resistance and machinability
• 2300 psi maximum working pressure rating
• Compact 1.71 inches overall length for use in tight spaces
• Straight union configuration maintains tubing alignment across the joint

Compatibility

Designed as an OEM-style compression tube union for use in plumbing, HVAC, and instrumentation systems requiring a brass compression fitting at both connection ends. Cross-reference: Swagelok part number B-600-6-4.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off and depressurize the system before disassembly or fitting installation. Ensure tubing ends are cut square, deburred, and clean before seating the compression ferrules. Follow all applicable local plumbing codes and manufacturer torque guidance for compression fittings to avoid ferrule distortion or joint leaks.