Columns Acc. To Vigreux With Fixed Vacuum Jacket

Product Code : EL-CC-10067

Lab Glassware Manufacturer manufactures and exports the Columns Acc. To Vigreux With Fixed Vacuum Jacket from its Ambala, Haryana facility, supplying school, college and research laboratories in India as well as export buyers that have recently included institutions in Egypt, Morocco and Tunisia — part of a wider base of enquiries from across North Africa.

Quick answer: This is a Vigreux-type fractionating column fitting with a fixed (sealed) vacuum jacket around the column body, terminating in an NS socket at one end and an NS cone at the other. The vacuum jacket reduces heat loss along the column during distillation, helping maintain more stable fractionation compared with an unjacketed column. It is manufactured in Borosilicate Glass 3.3.

Why a Vacuum Jacket Matters on a Fractionating Column

A fixed vacuum jacket surrounds the column body with a sealed, evacuated space, cutting down heat loss to the surrounding air along the length of the column. During distillation this helps the internal vapour and liquid streams stay closer to equilibrium, which supports a cleaner separation than the same column run without insulation. The NS socket-and-cone ends allow it to connect directly into a distillation train alongside a flask, a Vigreux or Hempel column body, and a receiver adapter.

Frequently Asked Questions

What does the fixed vacuum jacket do?
It surrounds the column with a sealed, evacuated space that reduces heat loss along the column during distillation, helping maintain more stable fractionation conditions than an unjacketed column.

How does this differ from the unjacketed Hempel-type column?
Both use the same NS socket-and-cone joint arrangement in Borosilicate Glass 3.3, but this piece adds a fixed vacuum jacket for better thermal insulation, while the plain Hempel-type accessory has no jacket and suits simpler, lower-cost setups.

What joint size is fitted?
The NS socket and NS cone are interchangeable ground-glass joints; buyers should confirm the exact NS size needed against the rest of their distillation train when enquiring.

Related Products

See the full range on the Chromatography Columns page, including the unjacketed Columns Acc. To Hempel and other fractionating and chromatography column options.

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Last updated: September 2026.