Eaton 2033-4-4S Steel Flared Tube Union Tee 1/4 in Od

Product Description

The EATON 2033-4-4S is a steel flared tube union tee fitting designed for use in hydraulic and fluid transfer lines where three flared tube ends must be joined at a single junction point. It accepts 1/4-inch OD tubing on all three ports and uses a 7/16-20 SAE thread with a 37-degree flare seat on each end. Rated to 4500 psi maximum working pressure, this fitting handles demanding pressure requirements in both mobile and stationary hydraulic systems. The all-steel construction supports a wide operating temperature range from -65 degrees F to 400 degrees F, making it suitable for environments with significant thermal variation. Plumbers, hydraulic technicians, and HVAC piping contractors commonly install this fitting.

The 2033-4-4S is used in residential and light commercial hydraulic, refrigeration-adjacent tubing, and fluid system applications where a tee junction is needed on 1/4-inch OD flared tubing lines. Its three-port flare configuration allows a main line to be branched without additional adapters or reducers. The 37-degree SAE flare angle is the standard for JIC and SAE hydraulic tubing connections. This fitting is appropriate wherever a compact, low-profile steel union tee is required in a metal tubing circuit rated for high working pressure.

Key Features

• Three-port flare-by-flare-by-flare end connection allows direct tee junction on 1/4-inch OD tubing lines
• 37-degree SAE flare angle conforms to SAE 070401 standard
• Rated to 4500 psi maximum working pressure for high-pressure hydraulic service
• Wide temperature range from -65 degrees F to 400 degrees F suits varied operating environments
• All-steel construction provides durability in demanding fluid system applications
• Compact overall length of 1.78 inches suits installations with limited clearance

Compatibility

Designed as an OEM-style replacement or new-installation fitting for hydraulic and fluid transfer tubing systems using 1/4-inch OD tubing with 7/16-20 SAE 37-degree flare connections.

Installation Notes

This fitting is installed by hydraulic technicians or licensed plumbers working on tubing circuits. Depressurize and isolate the fluid line fully before disassembling any existing connections. Flare the tubing ends to the correct 37-degree SAE angle using a proper flaring tool before threading the fitting into place — do not overtighten, as steel flare seats can be damaged by excessive torque. Verify that all connections are leak-free under system pressure before returning the line to service.