Parker 43F-4-6 Brass Flare to Solder 1/4 in Tube 45 Degree

Product Description

The PARKER 43F-4-6 is a brass flare-to-solder adapter fitting designed for use in refrigeration, HVAC, and plumbing tubing systems. It connects a 45-degree flared tube end to a solder cup end, providing a reliable transition between flared and soldered connections in a single compact body. The fitting accepts 1/4-inch tube OD on the flare side with a 7/16-20 UNF thread and uses a standard solder end on the opposing connection. Rated to 1,400 psi maximum working pressure and 250 degrees F, this fitting is built to handle demanding service conditions. The all-brass construction resists corrosion and is well suited for use with refrigerant lines, ACR tubing, and similar fluid-handling systems. HVAC technicians and plumbers install this fitting as part of system assemblies requiring both flare and solder joints.

This fitting is used in residential and light commercial HVAC systems, refrigeration circuits, and ACR piping installations where a 45-degree SAE flare connection must transition to a soldered tube joint. It is appropriate for new installations and service work where a section of tubing terminates in a flare fitting but connects to a component with a solder cup port. The compact 0.98-inch overall length makes it suitable for tight-access installations. It is sold individually and is a direct-use component requiring no additional hardware.

Key Features

• Flare-to-solder end connection for transitioning between flared and soldered tubing joints
• 45-degree SAE flare angle per SAE J512 and SAE J513
• 7/16-20 UNF thread size for 1/4-inch tube OD flare connection
• Rated to 1,400 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• All-brass construction for corrosion resistance in refrigerant and fluid service
• UL Listed; compliant with SAE J512 and SAE J513 standards

Compatibility

Designed as an OEM-style replacement or service fitting for HVAC, refrigeration, and ACR tubing assemblies requiring a 45-degree SAE flare-to-solder connection with a 1/4-inch tube OD flare end and 3/8-inch reduced outside diameter solder end.

Installation Notes

Installation is typically performed by licensed HVAC technicians or plumbers. De-energize the system and recover any refrigerant in accordance with EPA Section 608 regulations before disconnecting or installing fittings in a refrigerant circuit. The flare end should be made up hand-tight and then torqued with appropriate flare nut wrenches; do not overtighten. The solder end requires standard silver-brazing or soft-soldering procedures appropriate to the tubing and fluid service type.