Parker FB6TU4-HBLK Union Tee Fitting 3/8 Inch Od Kynar

Product Description

The PARKER FB6TU4-HBLK is a push-to-connect union tee tube fitting designed for tube-to-tube connections in fluid handling and instrumentation systems. Constructed from Kynar (PVDF), this fitting handles pressures up to 250 psi and maintains a vacuum rating of 28 in-Hg, making it suitable for both pressure and vacuum service. The FKM O-ring provides chemical resistance across a wide range of aggressive media. Licensed HVAC, plumbing, and industrial piping technicians install this fitting where a tee branch is needed without threading or soldering. The push-to-connect design allows fast, tool-free assembly and disassembly in tight spaces.

This fitting is used in light industrial, commercial, and laboratory fluid systems where corrosion resistance and chemical compatibility are critical. The Kynar body resists acids, solvents, and UV exposure, making it well suited for chemical feed lines, instrumentation tubing, and specialty fluid distribution systems. The black color designation identifies the FKM O-ring configuration within the Parker fitting series. It accepts 3/8 inch OD tubing on all three ports, enabling a straight tee branch without reducers or adapters.

Key Features

• Push-to-connect design allows tool-free tube insertion and release
• Kynar (PVDF) body construction for broad chemical and UV resistance
• FKM O-ring seals rated for aggressive chemical media
• Rated to 250 psi working pressure
• Vacuum rated to 28 in-Hg for suction-side applications
• Accepts 3/8 inch OD tubing on all three ports

Compatibility

Designed for use with 3/8 inch OD tubing in push-to-connect tube-to-tube applications. Compatible tubing materials and system suitability should be verified against the fluid media and operating temperature for the specific installation.

Installation Notes

Installation is performed by licensed plumbers or qualified instrumentation technicians. Ensure the system is fully depressurized and drained before disconnecting or installing any fittings. Tubing ends must be cut cleanly and squarely with no burrs to ensure a proper seal at the collet. Verify chemical compatibility of the Kynar body and FKM O-ring with the process fluid before placing the fitting in service.