3 Way Claisen Adapter (24/40 Joint)

The 3-Way Claisen Adapter with 24/40 Joint is a laboratory glassware component used to expand a compatible single-neck setup by providing additional connection points. It can be incorporated into reaction, distillation, reflux, addition, thermometer, or related assemblies when the required joint sizes and geometry match the rest of the apparatus.

This adapter uses standard-style 24/40 ground-glass connections. Before assembly, confirm both joint size and orientation for every component being connected. A nominally matching joint does not eliminate the need to inspect fit, glass condition, support, and clearance throughout the complete setup.

A 24/40 Claisen adapter can provide useful flexibility when more than one accessory must connect above a flask. Depending on the procedure, those connections may accommodate compatible condensers, addition components, thermometers, adapters, or other glassware. The adapter itself does not determine process accuracy, sealing performance, pressure capability, or chemical compatibility.

Inspect the glass for chips, cracks, star fractures, damaged joints, or contamination before use. Support the assembly so the adapter is not carrying excessive weight from attached components. Use suitable joint clips or clamps where appropriate. For vacuum or reduced-pressure work, evaluate the entire glass system and never assume an undocumented pressure or vacuum rating.

The 3-Way Claisen Adapter 24/40 is a useful configuration component for compatible laboratory glass assemblies. It can be paired with suitable flasks such as our 3-Neck Boiling Flasks, or browse more adapters and glassware in the Borosilicate Glass Laboratory Equipment collection.

Frequently Asked Questions

Which joint size does the Claisen adapter use?

The published configuration uses 24/40 ground-glass connections.

What does a Claisen adapter add to a setup?

It provides additional connection points above a compatible flask for accessories such as condensers, addition components, and thermometers.

Does the adapter establish a vacuum rating?

No. Confirm documented ratings for the adapter and the complete apparatus before reduced-pressure use.