Parker 12 Kbz-ss Compression Tube Union 3/4 in Ss Npt

Product Description

The PARKER 12 KBZ-SS is a compression tube union designed to join two lengths of tubing in a straight-line configuration without welding or brazing. Built from stainless steel, this fitting accepts 3/4-inch outside diameter tubing on both ends using all-compression end connections, eliminating the need for threaded tube ends. It is rated to 5800 psi maximum working pressure, making it suitable for high-pressure fluid and gas systems. The 3/4-14 NPT thread size defines the fitting class. Plumbers, pipefitters, and industrial service technicians install this type of union in process lines, hydraulic systems, and instrumentation applications where a removable, leak-tight tube connection is required.

This fitting is used in applications that demand a secure, reusable tube joint in stainless steel construction. The all-compression design is common in industrial process piping, chemical service lines, refrigeration tubing, and instrumentation tubing runs where vibration resistance and ease of assembly are priorities. Stainless steel construction resists corrosion in wet, chemical, or outdoor environments. The fitting is appropriate for both residential and commercial mechanical systems wherever 3/4-inch OD tubing must be joined inline at working pressures up to 5800 psi.

Key Features

• All-compression end connections on both sides — no brazing or welding required
• Stainless steel construction for corrosion resistance in harsh service environments
• Rated to 5800 psi maximum working pressure
• Accepts 3/4-inch outside diameter tubing on both ends
• 3/4-14 NPT thread standard for consistent fitment within NPT-class compression fittings
• Union configuration allows removal and reinstallation without cutting tubing

Compatibility

Designed as an OEM-style replacement or new-installation compression tube union for systems using 3/4-inch OD tubing with NPT-class compression fittings rated for high-pressure service.

Installation Notes

Installation should be performed by a licensed pipefitter, plumber, or qualified mechanical technician. Depressurize and isolate the line completely before disassembling any tubing connection. Ensure tubing ends are cut square and deburred before seating the compression ferrule to achieve a proper seal. Follow applicable codes such as ASME B31.1 or B31.3 for process piping when torquing compression fittings in high-pressure service.