Parker 4-1 Hbz-ss Compression Tube Union Stainless Steel

Product Description

The PARKER 4-1 HBZ-SS is a stainless steel compression tube union designed to join two compression-end tube lines in a single inline fitting. It connects tube to tube without soldering, flaring, or threading, making it a reliable choice for instrumentation, HVAC, plumbing, and industrial fluid systems. Constructed from stainless steel, it delivers corrosion resistance and durability in demanding service environments. With a maximum working pressure rating of 10300 psi, this union is suited for high-pressure applications where fitting integrity is critical. Installation requires only basic hand tools and correct tube preparation.

This compression tube union is used in residential and commercial applications where leak-tight tube connections are required. Typical installations include instrument tubing runs, refrigeration sensing lines, hydraulic control lines, and general fluid distribution systems. The compression x compression end configuration allows the fitting to join two tube ends inline without the need for additional adapters. It is well suited for tight-space routing where a straight union connection simplifies assembly.

Key Features

• Stainless steel construction provides corrosion resistance for demanding service environments
• Compression x compression end connections eliminate the need for soldering, flaring, or threading
• Maximum working pressure of 10300 psi supports high-pressure fluid and instrumentation systems
• Inline union configuration for straight tube-to-tube connections
• Compact design suitable for installations with limited clearance

Compatibility

Designed as an OEM-style compression tube union compatible with standard compression tube fitting systems where a stainless steel union connection is required.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or instrumentation technician familiar with compression fitting assembly procedures. Shut off and depressurize the system completely before removing any existing fittings or tubes. Ensure tube ends are cut cleanly and squarely, and that ferrules are seated correctly before tightening the compression nut. Do not overtighten compression fittings, as this can deform ferrules and compromise the seal.