Parker FB8UC8-HBLK Push-to-connect Union 1/2 Inch Od

Product Description

The PARKER FB8UC8-HBLK is a push-to-connect union tube fitting designed for tube-to-tube connections in fluid and pneumatic systems. Manufactured from Kynar (PVDF), it handles up to 250 psi working pressure and offers a vacuum rating of 28 in-Hg. The black color and FKM O-ring construction make it well suited for chemical-resistant and UV-exposed service environments. Installation requires no tools for tube insertion — the push-to-connect mechanism locks the tube on contact. Licensed plumbers, pipefitters, and industrial maintenance technicians are the typical installers for this type of fitting.

This fitting is used in applications where a leak-free inline union connection is needed between two same-diameter tubes. The 1/2 inch OD size fits standard tubing commonly found in water treatment systems, chemical distribution lines, pool and spa plumbing, and light industrial fluid handling. The Kynar body material resists a broad range of aggressive chemicals, making it appropriate for systems carrying chlorinated water, acids, or other corrosive media where standard thermoplastic fittings may not be adequate.

Key Features

• Push-to-connect design allows fast, tool-free tube insertion and secure locking
• Kynar (PVDF) body construction provides strong chemical and UV resistance
• FKM O-ring seals deliver reliable performance across a wide temperature and chemical range
• 250 psi maximum working pressure rating
• Vacuum rated to 28 in-Hg for low-pressure suction service
• Black color for visual identification and UV exposure tolerance

Compatibility

Designed for use with 1/2 inch OD tubing in push-to-connect tube-to-tube union applications. Confirm tubing material and wall thickness meet the fitting manufacturer requirements before installation.

Installation Notes

Shut off system pressure and depressurize the line completely before installing or removing any push-to-connect fitting. Ensure tube ends are cut cleanly and squarely with no burrs or deformation, as irregular tube ends are a common cause of connection failure. Verify that tubing OD and material are compatible with this fitting before insertion. Installation and service of pressure-rated fluid systems should be performed by qualified trades personnel in accordance with applicable local codes.