Parker KP17579 Steel Flared Tube Connector 1-1/4 in Od

Product Description

The PARKER KP17579 is a steel flared tube connector designed for high-pressure fluid and pneumatic line assemblies. It features a 37-degree flare seat and a Flare x NPTF end connection, joining a flared tube on one side to a National Pipe Taper Fuel thread on the other. The connector accepts a 1-1/4 inch tube OD with a 1-1/4-11-1/2 NPTF thread. It is rated to 3000 psi working pressure and handles continuous service temperatures up to 500 degrees F. This fitting meets ISO 8434-2, SAE 070102, and SAE J514 standards, making it suitable for demanding hydraulic and fluid power applications installed by licensed plumbers, pipefitters, and hydraulic technicians.

This connector is used in industrial hydraulic systems, high-pressure fluid lines, and fuel or pneumatic plumbing where a reliable flare-to-pipe transition is required. Typical applications include connecting steel tubing to threaded ports on pumps, manifolds, valves, and cylinders in commercial or industrial settings. Its all-steel construction and NPTF thread form provide a pressure-tight seal without relying on thread sealant tape alone, which suits environments with vibration or thermal cycling.

Key Features

• 37-degree flare seat meets SAE J514 and ISO 8434-2 standards for reliable sealing under pressure
• Flare x NPTF end configuration transitions flared tubing directly to tapered pipe threads
• 3000 psi maximum working pressure for demanding hydraulic and fluid power service
• Rated to 500 degrees F continuous service temperature
• All-steel construction for durability in industrial environments
• Overall length of 2.45 inches suits tight-clearance plumbing assemblies

Compatibility

Designed for use with 1-1/4 inch OD flared steel tubing and 1-1/4-11-1/2 NPTF threaded ports in hydraulic, fluid power, and high-pressure fuel line assemblies conforming to SAE J514 and ISO 8434-2 specifications.

Installation Notes

Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber familiar with high-pressure tube fitting assemblies. De-pressurize and isolate the fluid system completely before removing or installing any fitting. Ensure the tube end is properly flared to the 37-degree angle using a calibrated flaring tool before assembly, as an improperly flared tube will not seat correctly and can cause leaks under pressure. Follow applicable industry codes and the fitting manufacturer guidelines for proper makeup and inspection.