Parker 329HB-4-4PP Barbed Male Elbow 1/4 in Npt

Product Description

The PARKER 329HB-4-4PP is a single-barb male elbow fitting designed to connect flexible tubing to a male NPT-threaded port at a 90-degree angle. Made from polypropylene, this fitting accepts tubing with a 1/4 inch inside diameter and a 0.31 inch outside diameter. The 1/4 inch NPT male thread provides a secure connection to standard threaded fittings and manifolds. Rated to 125 psi and a maximum working temperature of 212 degrees F, it handles a broad range of fluid transfer applications. It meets FDA compliance and NSF/ANSI 51 standards, making it suitable for food equipment and potable water systems. Plumbers, HVAC technicians, and equipment service pros install this type of fitting in low-pressure tubing assemblies.

This fitting is used in residential and light commercial applications where flexible tubing must transition to a threaded connection in a confined or angled routing scenario. Common install environments include water treatment equipment, food service machinery, refrigeration drain lines, and HVAC condensate systems. The elbow geometry allows tubing to change direction without kinking, which is particularly useful in tight equipment enclosures. Its black polypropylene construction offers adequate chemical resistance for most water-based and mildly corrosive fluid service within its rated temperature and pressure range.

Key Features

• Single-barb design grips 1/4 inch ID tubing securely without additional clamps in low-pressure service
• 1/4 inch NPT male thread for connection to standard threaded ports and manifolds
• Rated to 125 psi maximum working pressure
• Operating temperature range of 0 degrees F to 212 degrees F
• Polypropylene construction provides corrosion resistance and light weight
• FDA compliant and NSF/ANSI 51 certified for food equipment and potable water contact

Compatibility

Designed for use with flexible tubing having a 1/4 inch inside diameter and a 0.31 inch outside diameter in systems with 1/4 inch NPT threaded ports.

Installation Notes

Installation is typically performed by a licensed plumber or qualified service technician. Shut off the fluid supply and relieve system pressure before making or breaking any tubing connections. Hand-tighten the NPT thread and use an appropriate thread sealant or PTFE tape in accordance with the International Plumbing Code; do not overtighten polypropylene fittings as the material can crack under excessive torque. Verify the tubing is fully seated past the barb before pressurizing the system.