Parker 322HB-6PP Barbed Tube Union Connector 3/8 in

Product Description

The PARKER 322HB-6PP is a single-barb tube union connector designed to join two lengths of flexible tubing in fluid-handling systems. Molded from polypropylene, this straight union fitting accepts 3/8-inch inside diameter tubing on both ends with a tube outside diameter of 0.43 inches. It carries a maximum working pressure of 125 psi and a maximum working temperature of 212 degrees F, making it suitable for a broad range of liquid conveyance applications. The fitting meets FDA compliance and NSF/ANSI 51 standards, qualifying it for use in food-equipment and potable-water-contact environments. Licensed plumbers, refrigeration technicians, and equipment service technicians are the typical installers.

This union connector is used in residential and light commercial fluid systems where a straight inline barbed connection is required between two runs of flexible tubing. Typical applications include food and beverage equipment, water filtration systems, ice machine supply lines, and general-purpose liquid transfer lines operating within the rated temperature and pressure range. The black polypropylene construction provides resistance to common cleaning agents and mild chemicals encountered in food-service and plumbing environments.

Key Features

• Single-barb design on each end secures 3/8-inch ID flexible tubing without additional clamps in low-pressure service
• Polypropylene construction offers corrosion resistance and compatibility with a wide range of fluids
• Rated to 125 psi maximum working pressure for reliable inline service
• Rated from 0 degrees F to 212 degrees F for hot and cold fluid applications
• FDA compliant and NSF/ANSI 51 certified for food-equipment and potable-water-contact use
• Compact overall length of 1.61 inches minimizes space requirements in tight installations

Compatibility

Designed as a direct-fit barbed union connector for flexible tubing with a 3/8-inch inside diameter and a 0.43-inch outside diameter, suitable for food, beverage, water filtration, and general fluid-handling equipment requiring FDA and NSF/ANSI 51 compliant fittings.

Installation Notes

Installation is performed by plumbers, refrigeration technicians, or equipment service technicians. Shut off fluid supply and relieve system pressure before disconnecting or installing fittings. Push tubing fully onto each barb to ensure a secure seal; hose clamps should be considered for installations near the upper pressure rating. Follow applicable IPC or equipment manufacturer guidelines for fluid-contact components in potable-water or food-equipment systems.