Parker 329HB-6-4PP Barbed Male Elbow 3/8 Barb 1/4 Npt

Product Description

The PARKER 329HB-6-4PP is a single-barb male elbow fitting designed to connect flexible tubing to a threaded male NPT port at a 90-degree angle. Molded from polypropylene, this fitting accepts a 3/8 inch tube inside diameter and transitions to a 1/4 inch NPT male thread. It is rated for working pressures up to 125 psi and a maximum working temperature of 212 degrees F, making it suitable for a broad range of fluid-handling applications in HVAC, plumbing, and light industrial service. Licensed trades and qualified service technicians are the primary installers.

This fitting is commonly used in low-pressure water, chemical transfer, and fluid distribution lines where a directional change is needed between flexible tubing and a threaded port. Its elbow configuration allows routing in tight spaces without bending or kinking the tubing. The polypropylene construction resists many common chemicals and is appropriate for potable water contact applications covered under NSF/ANSI 51. Typical install scenarios include equipment condensate lines, water treatment assemblies, and food-equipment plumbing.

Key Features

• Single-barb design grips flexible tubing with a 3/8 inch inside diameter
• 1/4 inch NPT male thread for direct connection to standard threaded ports
• Polypropylene construction for chemical resistance and lightweight durability
• Rated to 125 psi maximum working pressure
• Temperature range from 0 degrees F to 212 degrees F
• FDA compliant and NSF/ANSI 51 certified for potable water and food-equipment use

Compatibility

Designed as an OEM-style replacement or service fitting for flexible tubing assemblies requiring a 3/8 inch barb connection and a 1/4 inch NPT male threaded port in fluid-handling systems.

Installation Notes

Installation is typically performed by licensed plumbers or qualified HVAC and equipment service technicians. Shut off all fluid supply and depressurize the line before disassembly. Secure the barb connection with an appropriate clamp or tie rated for the tubing type and application pressure. Apply thread sealant or PTFE tape to the NPT threads per IPC and manufacturer guidelines before tightening.