Parker 16203 Steel Flared Tube Union 5/16 in 37 Degree

Product Description

The PARKER 16203 is a steel flared tube union designed to join two tube lines with matching 37-degree flared ends. It provides a leak-resistant, metal-to-metal seal rated for demanding hydraulic and fluid-power service. The fitting accepts 5/16-inch tube OD on both ends with a Flare x Flare end connection, and it is rated to a maximum working pressure of 6000 psi and a maximum working temperature of 500 degrees F. Licensed plumbers, HVAC technicians, and fluid-power mechanics install this fitting in pressurized tubing systems where a reliable union connection is required.

This union is suited for use in hydraulic lines, refrigeration circuits, fuel systems, and other high-pressure tubing assemblies that call for a 37-degree flare standard. It meets ISO 8434-2, SAE 070101, and SAE J514 standards, making it appropriate for both OEM fabrication and field service repair on commercial and industrial equipment. The compact overall length of 1.37 inches allows installation in tight routing environments common in equipment cabinets and mechanical rooms.

Key Features

• 37-degree flare angle meets ISO 8434-2, SAE 070101, and SAE J514 standards
• Rated to 6000 psi maximum working pressure for high-pressure fluid-power service
• Rated to 500 degrees F maximum working temperature
• Steel construction for durability in demanding hydraulic and fuel-system environments
• Flare x Flare end connections on both sides for symmetric union joining
• Compact overall length of 1.37 inches suits tight installation spaces

Compatibility

Designed as a 37-degree flare union for 5/16-inch OD tubing in hydraulic, refrigeration, fuel, and fluid-power systems conforming to SAE J514 and ISO 8434-2 flare standards.

Installation Notes

Installation should be performed by a qualified technician familiar with pressurized fluid or refrigerant systems. De-pressurize and isolate the tubing circuit completely before removing or installing any fittings. Ensure tube ends are cut square, deburred, and properly flared to the 37-degree angle before assembly. Verify all connections meet the applicable system pressure and temperature ratings before returning the system to service.