Parker 12 Jtx-s Steel Flared Tube Union 3/4 in Flare

Product Description

The PARKER 12 JTX-S is a steel flared tube union designed for high-pressure hydraulic and fluid power tubing connections. It joins two tube ends using a 37-degree flare seating surface, producing a leak-resistant metal-to-metal connection suited for demanding service environments. Rated to 5000 psi maximum dynamic working pressure and a maximum working temperature of 500 degrees F, this union handles the thermal and pressure cycles common in industrial and mobile hydraulic systems. The fitting measures 3.32 inches in overall length with a 3/4-inch tube outside diameter. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers.

This union is used in hydraulic tubing runs where a straight-through connection is needed between two 3/4-inch OD flared tube ends. It is suited for both stationary industrial equipment and mobile machinery. The Flare x Flare x Flare end configuration allows in-line union of tubing segments in tight or service-accessible routing. It is appropriate for use in systems where SAE J514 and ISO 8434-2 compliant fittings are specified, which is common in OEM hydraulic assemblies and field repair work.

Key Features

• 37-degree flare angle per SAE J514 and ISO 8434-2 standards for reliable metal-to-metal sealing
• 5000 psi maximum dynamic working pressure for high-demand hydraulic service
• Rated to 500 degrees F maximum working temperature
• Steel construction for durability in industrial and mobile hydraulic environments
• 3/4-inch tube OD with Flare x Flare end connections for straight-through tube union
• 3.32-inch overall length for predictable installation planning

Compatibility

Designed as a SAE J514 and ISO 8434-2 compliant 37-degree flared tube union for use with 3/4-inch OD steel tubing in hydraulic and fluid power systems requiring a straight union fitting.

Installation Notes

Installation should be performed by a qualified pipefitter or hydraulic technician. Depressurize and isolate the hydraulic circuit fully before disconnecting any fittings. Inspect tube ends for proper 37-degree flare formation before assembly, as an improperly formed flare will not seal correctly under pressure. Torque to the fitting manufacturer's specifications using a calibrated torque wrench and a backup wrench on the union body to prevent body rotation.