Cerrobrass U3-10E Brass Flared Tube Connector 5/8 in Od

Product Description

The CERROBRASS U3-10E is a brass flared tube connector designed to join 5/8-inch OD tubing to a 3/4-inch female iron pipe (FIP) threaded port using a 45-degree flare seat. The fitting features a Flare x FIP end configuration, allowing a flared copper or aluminum tube on one end to mate with a standard female-threaded pipe fitting on the other. This type of connector is a standard component in HVAC refrigerant piping, fuel gas lines, and plumbing supply runs where a secure, leak-resistant mechanical joint is required. Licensed HVAC technicians and plumbers are the typical installers.

This connector suits residential and light commercial applications where 5/8-inch OD tubing terminates at a threaded fitting or valve body. Common install scenarios include refrigerant line sets, LP and natural gas supply connections, and hydronic system branches where a flare-to-threaded transition is needed. The 45-degree flare angle conforms to the SAE flare standard widely used across HVAC and refrigeration tubing work.

Key Features

• 45-degree flare seat conforms to SAE flare standards for refrigerant and gas line work
• Flare x FIP end connection provides a direct transition from flared tubing to female-threaded pipe
• 5/8-inch tube OD accommodates common HVAC and refrigeration copper line sizes
• All-brass construction resists corrosion in refrigerant, gas, and water service
• Compact form factor at 0.13 pounds for easy handling in tight spaces

Compatibility

Designed as an OEM-style replacement or new-install fitting for systems using 5/8-inch OD flared tubing with a 3/4-inch FIP threaded connection point, consistent with standard 45-degree SAE flare fitting applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber in accordance with applicable codes, including IFGC for gas applications and IPC for plumbing. Shut off and depressurize the system before disassembling any existing fittings. Use a calibrated flaring tool to produce a clean, crack-free 45-degree flare seat on the tubing before tightening the fitting. Apply thread sealant rated for the service fluid on the FIP threads; do not over-torque, as brass fittings can crack if forced.