Parker 12-12 Hbz-b Brass Compression Tube Union 1900 Psi

Product Description

The PARKER 12-12 HBZ-B is a brass compression tube union designed to join two compression-end tube lines in a single, inline fitting. It creates a leak-resistant, removable connection without soldering or threading, making it a reliable choice for instrumentation, refrigeration, and fluid-handling installations. Constructed from brass that meets ASME-SB75 and ASTM-B75 standards, this union holds a maximum working pressure of 1900 psi. The compression-by-compression end configuration allows quick assembly and disassembly in the field. Plumbers, HVAC technicians, and instrumentation installers working with copper or compatible tubing routinely specify this fitting type for both new construction and retrofit service work.

This union is suited for residential and light commercial plumbing, HVAC refrigerant or fluid lines, and instrumentation tubing systems where a straight inline union connection is required. The compression end connections eliminate the need for open flame, making this fitting practical in environments where torch work is restricted or inconvenient. It is commonly installed in tight spaces where access to both tube ends is limited but the fitting must remain serviceable.

Key Features

• Compression x compression end connections for tool-friendly, no-solder assembly
• Maximum working pressure of 1900 psi for demanding fluid and gas line applications
• Brass construction per ASME-SB75 and ASTM-B75 standards
• Inline union configuration for straight tube-to-tube joining
• Removable and reassembleable design supports field serviceability

Compatibility

Designed as an OEM-style compression tube union compatible with standard compression-end copper and compatible tubing systems in plumbing and fluid-handling applications.

Installation Notes

Installation is performed by licensed plumbers or qualified HVAC technicians. Shut off and depressurize the system completely before cutting or disconnecting any tube lines. Ensure tube ends are cut square, deburred, and clean before seating ferrules to achieve a proper compression seal. Follow applicable plumbing codes, including IPC guidelines, for tube fitting installation and pressure testing requirements.