Parker 325HB-8-4N Barbed Tube Male Connector 1/2 in

Product Description

The PARKER 325HB-8-4N is a single-barb male tube connector designed for low-pressure fluid and pneumatic tubing systems. Molded from nylon and color-coded white, it accepts 1/2-inch inside diameter tubing and threads into a 1/4-inch NPT female port. The barbed end creates a secure mechanical grip on the tube without requiring additional fittings or clamps in many light-duty applications. Rated to 125 psi maximum working pressure and a temperature range of -40 degrees F to 200 degrees F, this fitting is built for applications where chemical resistance and food-grade compliance are required. FDA compliance and NSF/ANSI 51 certification make it suitable for potable water and food-equipment environments.

This fitting is used in residential and light commercial plumbing, food service equipment, water filtration systems, and HVAC condensate or fluid-handling lines where a barbed-to-NPT male connection is needed. It is well suited for connecting flexible tubing to threaded ports on pumps, manifolds, tanks, or equipment panels. Licensed plumbers, HVAC technicians, and food-equipment service technicians are the typical installers. The nylon construction resists corrosion and is compatible with a range of non-aggressive fluids.

Key Features

• Single-barb design grips 1/2-inch ID tubing without additional hardware in many light-duty setups
• 1/4-inch NPT male thread for direct connection to standard female NPT ports
• Nylon construction provides corrosion resistance and light weight
• Rated to 125 psi maximum working pressure
• Operating temperature range of -40 degrees F to 200 degrees F (93.3 degrees C maximum)
• FDA compliant and NSF/ANSI 51 certified for food-zone and potable water applications

Compatibility

Designed for use with flexible tubing having a 1/2-inch inside diameter and 0.55-inch outside diameter, threading into any standard 1/4-inch NPT female port in fluid or pneumatic handling systems.

Installation Notes

Installation is typically performed by a licensed plumber or qualified HVAC or equipment service technician. Shut off fluid supply and relieve system pressure before removing or installing any fitting. Apply thread sealant tape or compound to the NPT threads per IPC and manufacturer guidelines; do not overtighten nylon fittings, as the material can crack under excessive torque. Ensure tubing is fully seated past the barb before pressurizing the system.