Parker P00189 Steel Flared Tube Union 3/4 in 37 Degree

Product Description

The PARKER P00189 is a steel flared tube union designed to connect two flared tube ends in high-pressure hydraulic, pneumatic, and fluid-transfer lines. It features a 37-degree flare angle with flare x flare end connections on both sides, conforming to the JIC (37-degree) flare standard widely used in industrial and mobile hydraulic systems. Rated to a maximum working pressure of 5000 psi, this union is built for demanding service environments where a leak-free, metal-to-metal seal is required. The 3/4-inch tube OD sizing makes it a common choice for mid-range hydraulic and refrigerant line assemblies. Sold in a package quantity of 2.

This fitting is suited for use in industrial hydraulic systems, mobile equipment, HVAC refrigerant piping, and fluid power applications where 37-degree JIC flare connections are specified. It is installed inline to join two tube runs of equal OD, either as an extension or during a repair requiring a union joint. Licensed plumbers, HVAC technicians, and hydraulic system technicians are the primary installers. The compact steel body handles high-cycle and high-pressure service without requiring welding or brazing.

Key Features

• 37-degree JIC flare angle for metal-to-metal sealing on both ends
• Rated to 5000 psi maximum working pressure for high-pressure hydraulic and fluid-power use
• Steel construction for durability in industrial and mobile equipment environments
• 3/4-inch tube OD sizing fits standard mid-range hydraulic and refrigerant tubing
• Flare x flare end connections on both sides for inline union joining
• Sold in a package of 2 units

Compatibility

Designed as an OEM-style replacement and standard inline union for hydraulic, pneumatic, and fluid-transfer systems using 3/4-inch OD tubing with 37-degree JIC flare fittings.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or qualified hydraulic system technicians. De-pressurize and isolate the line completely before disassembly or connection. Hand-tighten the flare nut onto the fitting seat, then torque with an appropriate flare-nut wrench to avoid rounding the nut or over-stressing the flare seat. Follow applicable system codes and manufacturer specifications for final torque and pressure testing after reassembly.