Parker 322HB-8N Barbed Tube Union Connector 1/2 Inch

Product Description

The PARKER 322HB-8N is a single-barb tube union connector designed to join two lengths of flexible tubing in fluid-handling systems. Molded from white nylon, this straight union accepts 1/2 inch inside-diameter tubing on each end and is rated for working pressures up to 125 psi. The fitting meets FDA compliance standards and NSF/ANSI 51 certification, making it suitable for food-equipment and potable-water-contact applications. At 1.74 inches overall length and weighing 0.01 pounds, it is a compact, lightweight solution. Plumbers, food-service equipment technicians, and water-treatment installers are the typical end users.

This union connector is used in low-pressure fluid lines where a straight inline barb connection is needed between two flexible tubing runs. Common applications include drinking water dispensing equipment, ice machines, food-processing lines, and light-duty plumbing systems where NSF/ANSI 51 compliance is required. The nylon construction performs across a temperature range of -40 degrees F to 200 degrees F, covering most indoor hydronic and food-service environments.

Key Features

• Single-barb union design joins two 1/2 inch ID flexible tubes without tools
• Nylon construction resists corrosion and is compatible with common water-based fluids
• Rated to 125 psi working pressure for reliable low-pressure line service
• FDA compliant and NSF/ANSI 51 certified for food-equipment and potable-water contact
• Wide temperature range: -40 degrees F to 200 degrees F (-40 degrees C to 93.3 degrees C)
• Compact at 1.74 inches overall length for use in tight equipment cavities

Compatibility

Designed for use with flexible tubing having a 1/2 inch inside diameter and a 0.56 inch outside diameter. Suitable as a standard barbed union connector in food-service equipment, water treatment, and similar low-pressure fluid-handling assemblies.

Installation Notes

Installation does not require tools — push the barbed ends firmly into the tubing until the tubing seats past each barb. Shut off system pressure and depressurize the line before disconnecting or reconnecting any fitting. Verify the tubing material and wall thickness are compatible with the fluid media and operating conditions before use. IPC and NSF guidelines should be followed for any potable water application.