adapter vacuum/inert, gas, 90 degrees, cone 29/32

Overview

The Adapter Vacuum/Inert Gas, 90 Degrees, Cone 29/32 is a laboratory glass connector designed to introduce vacuum or an inert gas atmosphere into a glassware assembly. Manufactured from borosilicate glass, it provides the chemical resistance and thermal stability required for routine work across synthesis, distillation, and sample handling setups. The 90-degree geometry redirects the gas or vacuum line at a right angle relative to the ground-glass cone, which helps keep tubing organized and out of the way when the adapter is mounted on a flask or column.

Construction and Specifications

The adapter is built around a standard 29/32 ground-glass cone, allowing it to mate directly with compatible sockets on flasks, condensers, and multi-neck vessels of the same size. The borosilicate construction supports operation up to its rated maximum temperature, and the unit is intended for use at ambient pressure conditions as specified below.

• Adapter type: Vacuum/Inert Gas
• Angle: 90 degrees
• Cone size: 29/32
• Material: Borosilicate glass
• Maximum temperature: 200°C
• Pressure rating: 1 atm
• Overall length: 150 mm

Typical Applications

This adapter is commonly used to connect a vacuum pump or an inert gas supply, such as nitrogen or argon, to a reaction or distillation apparatus. The right-angle side arm is intended for tubing connection, while the 29/32 cone seats into the matching socket of the glassware. It is well suited to Schlenk-line style operations, degassing procedures, and maintaining an inert blanket over air- or moisture-sensitive samples. Because it is rated to 1 atm, it should be employed within standard atmospheric working conditions rather than for high-pressure service.

Laboratories that require an alternative configuration may also consider the matching Right-angle version listed in the catalog, which shares the same general design concept. For setups built on smaller ground-glass joints, the vacuum adapter with 14/23 cone and socket offers a comparable function in a more compact format.

Compatibility and Notes

To form a reliable connection, pair this adapter with glassware that uses a 29/32 ground-glass joint, and verify that the tubing diameter matches the side-arm outlet. When temperature is a factor in a workflow that combines this adapter with cooled or heated stages, supporting equipment such as the heating mantles and circulation systems in the laboratory equipment range can help maintain stable operating conditions. Observe the stated maximum temperature of 200°C and the 1 atm pressure rating during use, and handle the borosilicate glass with appropriate care to avoid mechanical stress or thermal shock.

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