Parker FAFS-68 Female Straight Adapter 1/2 in 3/8 in Tube

Product Description

The PARKER FAFS-68 is a compression tube female straight adapter designed for connecting 3/8 inch OD tubing to a 1/2 inch female threaded port. Constructed from Perfluoroalkoxy (PFA) and Polytetrafluoroethylene (PTFE), this fitting is suited for high-purity, chemically aggressive, or corrosion-sensitive fluid handling applications. The plastic grip-style compression design allows secure tube retention without the need for metal ferrules or special tools. Licensed plumbers, HVAC technicians, and process piping professionals install this type of fitting in systems where chemical compatibility and leak-free performance are required.

This fitting is commonly used in residential and commercial fluid systems where PFA or PTFE tubing must terminate at a threaded female port. Typical applications include chemical feed lines, high-purity water systems, instrumentation tubing, and specialty HVAC or refrigeration process lines. The straight adapter configuration makes it well suited for in-line connections where a direct tube-to-thread transition is needed without introducing bends or offsets in the tubing run.

Key Features

• PFA and PTFE construction provides broad chemical resistance for corrosive or high-purity service
• Compression-style fitting accepts 3/8 inch OD tubing without metal ferrules
• Plastic grip type allows hand-tightening and tool-assisted seating in confined spaces
• Female straight adapter configuration provides direct tube-to-thread inline transition
• 1/2 inch thread size accommodates standard female threaded ports
• Sold as a single unit with no minimum quantity constraint beyond one piece

Compatibility

Designed as an OEM-style compression fitting for use with 3/8 inch OD plastic tubing in female threaded port applications requiring PFA or PTFE wetted materials.

Installation Notes

Installation should be performed by a qualified plumber or pipefitter. Shut off system pressure and depressurize all lines before disassembling or installing compression fittings. Hand-tighten the compression nut first to seat the tubing, then use an appropriate wrench for final tightening per the fitting manufacturer guidelines — do not overtighten, as PFA and PTFE components can deform under excessive torque. Verify thread type compatibility with the receiving port before installation to ensure a leak-free seal.