Anderson Metals 754057-0806 Brass Flared Tube Union 1/2x3/8

Product Description

The ANDERSON METALS 754057-0806 is a lead-free brass flared tube union designed to join two flared tube lines in a single inline connection. It accepts a 1/2-inch OD tube on one end and a 3/8-inch OD tube on the other, with 45-degree flare seats on both ends for a leak-tight mechanical seal. Rated at 750 psi working pressure for both static and dynamic service, this fitting is suited for refrigeration, HVAC, and plumbing gas or liquid lines where dissimilar tube sizes must be coupled. The lead-free brass construction meets drinking-water and potable system material requirements. Plumbers, HVAC-R technicians, and gas fitters install this type of union as a field repair or system assembly fitting.

This flared tube union is used in residential and light commercial applications including refrigerant line connections, LP and natural gas supply tubing, and potable water systems. The reducing configuration — 1/2-inch to 3/8-inch tube OD — is common when transitioning between supply and branch line sizes. The flare-by-flare end connection eliminates the need for solder or thread sealant at the joint, making it a serviceable, reusable connection point.

Key Features

• Lead-free brass construction meets material requirements for potable water and gas service
• 45-degree flare seats on both ends for a positive, leak-tight mechanical seal
• Reducing union accepts 1/2-inch OD tube on one side and 3/8-inch OD tube on the other
• 750 psi maximum working pressure rated for both static and dynamic service
• Flare x flare end connections are reusable and serviceable without solder or thread sealant

Compatibility

Designed as an OEM-style replacement or field-service fitting for copper tubing systems using standard 45-degree SAE flare connections in HVAC-R, gas, and plumbing applications.

Installation Notes

Installation should be performed by a licensed plumber, gas fitter, or HVAC-R technician. Shut off system pressure and purge the line before disconnecting or installing any flare fitting. Use a calibrated flaring tool to form consistent 45-degree flares on the tube ends before seating — damaged or inconsistent flares are the leading cause of leaks at flare joints. Tighten flare nuts to hand-tight plus the additional turns specified by the applicable code or fitting manufacturer guidance; do not overtighten, as this can crack the flare seat.