Parker 3 Jtx-s Steel Flared Tube Union 3/16 in 37 Degree

Product Description

The PARKER 3 JTX-S is a steel flared tube union designed for hydraulic and fluid-system plumbing applications requiring a 37-degree flare connection. This union joins three flared tube ends — flare x flare x flare — into a single fitting, making it suitable for branching or joining lines in high-pressure systems. The fitting handles a maximum working pressure of 7500 psi and withstands temperatures up to 500 degrees F (260 degrees C). At 1.66 inches in overall length and weighing 0.01 pounds, it is a compact, lightweight component. Licensed HVAC, plumbing, and fluid-power technicians install this type of fitting during new system fabrication or repair work on tubing runs.

This fitting is used in residential and commercial fluid-power, refrigeration, and hydraulic plumbing systems where 3/16-inch OD tubing with a 37-degree flare termination is required. The three-end flare configuration supports branch connections without the need for additional adapters. It conforms to ISO 8434-2, SAE 070401, and SAE J514 standards, making it appropriate for systems built to those specifications. Typical install scenarios include refrigerant line fabrication, hydraulic circuit branching, and instrumentation tubing work where high-pressure integrity and temperature resistance are critical.

Key Features

• 37-degree flare angle per ISO 8434-2, SAE 070401, and SAE J514 standards
• Flare x flare x flare end connections for three-way line joining or branching
• Maximum working pressure of 7500 psi for demanding hydraulic and fluid-system service
• Rated to 500 degrees F (260 degrees C) maximum working temperature
• Steel construction for durability in high-pressure and elevated-temperature environments
• Compact design at 1.66 inches overall length and 0.01 pounds

Compatibility

Designed as an OEM-style replacement or new-installation fitting for fluid-power, hydraulic, and refrigeration tubing systems using 3/16-inch OD tube with a 37-degree flare end connection, conforming to SAE J514 and ISO 8434-2 specifications.

Installation Notes

Installation should be performed by a qualified technician familiar with flared tube fitting procedures and the applicable system codes. De-pressurize and isolate the fluid circuit completely before disassembling or installing any fitting. Use the appropriate flaring tool to ensure a clean, correctly formed 37-degree flare on all tube ends before assembly. Do not over-torque flare nuts, as this can deform the flare seat and cause leaks; refer to the system OEM or SAE J514 guidelines for proper assembly procedure.