Parker FEC-4 Compression Tube Union 1/4 in Tube Od Pfa Ptfe

Product Description

The PARKER FEC-4 is a compression tube union designed to join two runs of tubing with a secure, leak-resistant connection. It accepts tubing with a 1/4 inch outside diameter and is constructed from Perfluoroalkoxy (PFA) and Polytetrafluoroethylene (PTFE) materials, making it well suited for applications involving aggressive chemicals, high-purity fluids, or elevated temperatures where metal fittings are not appropriate. The plastic grip-style compression mechanism allows for tool-assisted hand tightening without requiring specialized crimping equipment. Plumbers, process piping technicians, and laboratory or industrial fluid-system installers are the typical end users for this fitting type.

This union fitting is intended for use in fluid handling systems where chemical compatibility and purity are critical concerns. PFA and PTFE materials resist a broad range of corrosive media, making this fitting common in chemical process lines, semiconductor fabrication, pharmaceutical fluid circuits, and similar high-purity or corrosive-service tubing systems. The compression design allows for straightforward in-line connections without solvent bonding or heat fusion tools.

Key Features

• Accepts 1/4 inch OD tubing on both ends for a straight union connection
• PFA and PTFE construction provides excellent chemical resistance and low extractables
• Plastic grip compression fitting style — no metal contact with process fluid
• Lightweight design at 0.1 pounds
• Single-piece package — sold individually

Compatibility

Designed for use with 1/4 inch OD flexible or semi-rigid tubing in compression-style PFA and PTFE fluid handling systems. No additional compatible model numbers or system families were specified in the product data.

Installation Notes

Installation is performed by process piping technicians or plumbers familiar with plastic compression fittings. Before servicing any fluid line, depressurize and drain the system completely. Tubing ends should be cut cleanly and squarely to ensure a proper seal within the compression body. Avoid over-tightening, which can crack or deform PFA and PTFE components — follow the fitting manufacturer torque guidance if provided on the packaging.