Parker GSC-6 Compression Tube Union 3/8 in Pfa Ptfe

Product Description

The PARKER GSC-6 is a compression tube union designed to join two lengths of tubing in a straight-line configuration. It accepts a 3/8 inch tube outside diameter on both ends and creates a secure, leak-resistant connection without threading or soldering. The fitting body is constructed from PFA (Perfluoroalkoxy) and PTFE (Polytetrafluoroethylene), making it well suited for high-purity fluid handling, chemical transfer lines, and applications where resistance to aggressive media is required. The plastic grip-type compression mechanism locks onto the tube upon tightening, providing a reliable seal. This fitting is typically installed by plumbers, process piping technicians, and industrial maintenance professionals working with fluoropolymer tubing systems.

The GSC-6 is used in fluid handling systems where chemical compatibility with aggressive solvents, acids, or high-purity process fluids is necessary. PFA and PTFE construction makes this fitting appropriate for laboratory, semiconductor, chemical processing, and specialty HVAC or refrigeration applications that call for fluoropolymer wetted components. It is suitable for both residential and light commercial installations where corrosion resistance and purity of flow path are priorities.

Key Features

• Accepts 3/8 inch tube outside diameter on both ends for straight inline connection
• PFA and PTFE construction provides excellent chemical resistance and low extractables
• Plastic compression grip type — no soldering, brazing, or threading required
• Compact, lightweight design at 0.1 pounds for easy handling in tight installations
• Single-piece union configuration simplifies tube-to-tube joining in process lines

Compatibility

Designed as an OEM-style compression union for use with 3/8 inch OD fluoropolymer or compatible plastic tubing in chemical, laboratory, and process fluid handling systems.

Installation Notes

Installation is performed by qualified plumbing or process piping technicians familiar with compression-style fluoropolymer fittings. Shut off and depressurize the fluid line completely before disconnecting or installing any compression fitting. Ensure tubing is cut cleanly and squarely, and that the tube end is fully seated into the fitting body before tightening the compression nut. Avoid over-tightening, as plastic compression components can crack under excessive torque; follow the fitting manufacturer guidance for hand-tight-plus turns.