Parker P00188 Steel Flared Tube Union 5/8 in 37 Degree

Product Description

The PARKER P00188 is a steel flared tube union designed to connect two flared tube ends in high-pressure hydraulic and fluid-system lines. It uses a 37-degree flare angle on both ends, conforming to the JIC flare standard widely used in hydraulic, refrigeration, and industrial plumbing applications. Rated to 5000 psi maximum working pressure, this fitting is built for demanding service conditions. The all-steel construction provides durability and resistance to system pressures encountered in mobile hydraulics, stationary hydraulic circuits, and related fluid-conveyance assemblies. Licensed plumbers, pipefitters, and hydraulic system technicians are the primary installers.

This union is sized for 5/8-inch tube OD with flare-by-flare end connections. It is suited for use in hydraulic power units, fuel lines, and industrial fluid systems where a secure, leak-resistant union is required between two flared tube segments. The 37-degree flare angle makes it compatible with JIC-standard fittings and tooling. Each package contains 2 units, making it practical for jobs requiring multiple connection points.

Key Features

• 37-degree flare angle on both ends conforms to JIC flare standards
• Rated to 5000 psi maximum dynamic working pressure
• 5/8-inch tube OD sizing for a direct flare-to-flare union connection
• All-steel construction for durability in high-pressure service
• Flare x Flare end connections on both sides for symmetric installation
• Sold in packages of 2 units

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic and fluid-system tubing assemblies using 5/8-inch OD tube with 37-degree JIC flare connections rated up to 5000 psi.

Installation Notes

Installation should be performed by a licensed pipefitter, hydraulic technician, or qualified plumber. Depressurize and drain the system completely before removing or installing any fittings. Use proper flaring tools calibrated for the 37-degree JIC flare angle to ensure a leak-free seat. Torque flare nuts to the fitting manufacturer's specifications using a calibrated torque wrench, and verify for leaks before returning the system to service.