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The EATON 2021-8-8S is a steel flared tube connector designed for high-pressure hydraulic and fluid system applications. It features a 37-degree flare seat on the tube end and a male NPT thread on the pipe end, creating a Flare x MNPT connection. Rated to 6000 psi maximum working pressure, it handles temperatures from -40 degrees F to 250 degrees F. The connector accepts 1/2 inch tube OD and a 1/2 inch NPT thread. Licensed plumbers, pipefitters, and hydraulic system technicians install this fitting when transitioning between flared tubing and threaded pipe connections in fluid power and fluid transfer systems.
This connector is suited for residential and commercial fluid systems where a flared steel tube must interface with a male NPT threaded port. Typical applications include hydraulic lines, compressed air systems, fuel lines, and other high-pressure fluid circuits that require a leak-resistant 37-degree flare joint conforming to SAE 070102 standards. The fitting is sold individually and is appropriate where single-piece replacement or new construction installations require a reliable steel connector at moderate tubing sizes.
Designed as an OEM-style replacement or new-installation fitting for fluid systems using 1/2 inch OD flared steel tubing with 1/2 inch NPT threaded ports, conforming to SAE 070102 flare standards.
Installation should be performed by a qualified pipefitter, plumber, or hydraulic technician. Depressurize and isolate the system fully before removing or installing any fittings. Apply thread sealant appropriate for the fluid service to the NPT male threads only — never apply sealant to the flare seating surface. Verify that the mating tube flare is clean, undamaged, and formed to the correct 37-degree angle before torquing the connection.
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