Eaton 2021-8-12S Steel Flared Tube Connector 3/4 in

Product Description

The EATON 2021-8-12S 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 opposite end, creating a Flare x MNPT configuration. With a maximum working pressure of 5500 psi and a temperature range of -40 to 250 degrees F, this connector handles demanding service conditions. The 3/4 inch tube OD and 1/2 inch NPT thread sizes make it a common fitting in industrial, mobile equipment, and fluid power plumbing systems. Licensed plumbers, pipefitters, and hydraulic technicians are the primary installers.

This connector is suited for use in hydraulic lines, fuel systems, and other high-pressure fluid circuits where a 37-degree flare-to-NPT transition is required. The Flare x MNPT end configuration allows direct connection between a flared tube and a female NPT port on a valve, manifold, pump, or cylinder. It is commonly found in industrial machinery, agricultural equipment, and mobile hydraulic applications requiring a reliable, leak-resistant joint at elevated pressures.

Key Features

• 37-degree flare seat meets SAE J514 flare fitting standards (SAE 070102)
• Maximum working pressure of 5500 psi for high-demand hydraulic service
• Operating temperature range of -40 to 250 degrees F
• Flare x MNPT end connection for tube-to-pipe-thread transitions
• Steel construction for strength and durability in pressurized systems
• Overall length of 2.06 inches (52.30 mm) for compact installation clearance

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic and fluid power systems requiring a 3/4 inch OD flared tube connection to a 1/2 inch NPT female port.

Installation Notes

Installation should be performed by a qualified pipefitter, hydraulic technician, or licensed plumber. Depressurize and drain the system fully before removing or installing any fittings. Torque the NPT end using appropriate pipe wrenches and apply thread sealant compatible with the system fluid. Inspect the flare seat and tube flare for damage before assembly to ensure a leak-free joint.