Parker FB6WY4-HBLK Push-to-connect Union 3/8 Inch Od

Product Description

The PARKER FB6WY4-HBLK is a push-to-connect union tube fitting designed for quick, tool-free connections in fluid and pneumatic systems. Constructed from Kynar (PVDF), this fitting handles aggressive media including acids, solvents, and chlorinated compounds where standard thermoplastics fall short. The black color indicates FKM O-ring seals, rated for compatibility with a broad range of process fluids and fuels. With a 250 psi pressure rating and a vacuum rating of 28 inches Hg, it covers both pressure and light vacuum applications. Licensed plumbers, industrial pipefitters, and process technicians typically install this fitting in chemical processing, water treatment, and instrumentation lines.

This union fitting accepts 3/8 inch OD tubing on both ends and allows in-line connection or disconnect without tools, making it practical for maintenance-heavy systems or panel-mounted tubing runs. It is suited for residential and light commercial water purification systems, chemical feed lines, and analytical instrument plumbing where Kynar chemical resistance is specified. Its compact form factor fits in tight panel spaces or manifold assemblies where threaded fittings would be impractical.

Key Features

• Kynar (PVDF) body for resistance to acids, solvents, and chlorinated media
• Push-to-connect design allows tool-free tube insertion and release
• FKM O-ring seals rated for broad chemical and fuel compatibility
• 250 psi working pressure rating
• 28 inches Hg vacuum rating for light vacuum service
• Black color coding for quick O-ring material identification in the field

Compatibility

Designed for use with 3/8 inch OD tubing in push-to-connect plumbing and instrumentation systems requiring Kynar chemical resistance and FKM sealing.

Installation Notes

Depressurize and drain the line completely before disconnecting or installing this fitting. Tubing ends must be cut square and deburred to ensure a proper seal and full engagement with the collet. Follow applicable plumbing codes and the system designer's tubing material specifications when installing in chemical or process service. Do not exceed the rated working pressure or vacuum rating for the system operating conditions.