Parker 144F-4 Brass Flared Tube Union 1/4 in 45 Degree

Product Description

The PARKER 144F-4 is a brass flared tube union designed for three-end flare connections in refrigeration, HVAC, and fluid-transfer systems. It accepts 1/4-inch tube OD with a 7/16-20 UNF thread and a 45-degree flare seat on all three ports. Rated to 1400 psi maximum working pressure and 250 degrees F, the fitting handles the pressure and temperature demands typical of refrigerant lines and hydraulic tubing. The all-brass construction resists corrosion in wet or oil-laden environments. Overall length is 1.72 inches. Certified to SAE J512, SAE J513, and carries a UL Listing, making it suitable for applications where code compliance is required.

This union fitting is used in residential and light commercial HVAC installations, refrigeration line sets, and fluid-handling assemblies where a three-way flared tube junction is needed. It is commonly installed by licensed HVAC technicians and refrigeration mechanics when joining or branching copper or aluminum tubing in systems that require a leak-tight, mechanically secured flare connection. The 45-degree flare configuration is the standard angle for SAE-style tube fittings used across these trades.

Key Features

• 45-degree flare seat on all three ports for SAE-standard tube connections
• 1/4-inch tube OD with 7/16-20 UNF thread sizing
• Rated to 1400 psi maximum working pressure
• 250 degrees F maximum working temperature
• All-brass construction for corrosion resistance in refrigerant and fluid service
• Certified to SAE J512, SAE J513, and UL Listing standards

Compatibility

Designed as an OEM-style replacement or service fitting for HVAC, refrigeration, and fluid-transfer systems requiring a 1/4-inch OD, 45-degree SAE flare union connection.

Installation Notes

Installation should be performed by a licensed HVAC technician or refrigeration mechanic familiar with flared tube fittings and applicable codes. Recover and evacuate any refrigerant from the system before opening lines, in accordance with EPA Section 608 requirements. Use a calibrated flaring tool to produce a clean, uniform 45-degree flare on each tube end before assembly. Do not overtighten the flare nut, as over-torquing can crack the flare seat and cause leaks.