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The HAM-LET 3101861 is a three-way brass compression tee union designed to join three compression tube lines at a single fitting body. Built from brass conforming to ASTM B68 and ASTM B75 standards, this fitting provides a leak-resistant mechanical connection without soldering or threading. At 2.4 inches overall length, it is compact enough for tight installations in instrumentation, refrigeration, and fluid-system plumbing. Licensed plumbers, HVAC technicians, and instrumentation fitters rely on this type of union tee when a branch connection is needed in a compression-tube run. The fitting accepts compression ends on all three ports, allowing quick assembly with standard tube and compression nuts.
This tee union is suited for use in residential and light commercial applications where compression-tube branch connections are required. Typical install scenarios include instrument tubing manifolds, sample lines, and low-pressure fluid distribution systems. The operating temperature range of -20 degrees C to 37 degrees C makes it appropriate for ambient and mildly cooled service conditions. It is sold individually and ships as a single unit.
Cross-referenced to Swagelok part number B-600-3. Designed as an OEM-style replacement or direct substitute in compression tube systems using matching tube outer diameter and compatible compression nuts and ferrules.
Installation is performed by a licensed plumber or qualified instrumentation technician. Depressurize and isolate the tube circuit fully before removing any existing fittings or inserting this union tee. Use appropriate tube cutters and deburring tools to ensure a clean, square tube end before seating the compression ferrule. Verify that tube material and outer diameter are compatible with the fitting before final assembly and pressure testing.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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