KGW Isotherm - Columns

Packed columns
Packed-columns with added ground in joints
Packed-columns with seated - in head joints
Vigreux columns with standard or spherical ground joints
Vigreux-columns with added ground joints
Vigreux-columns with seated - in head joints
Heatable Columns
Configuration Wizzard for Columns
Columns Catalog as PDF File

All columns produced by KGW-Isotherm are manufactured and tested to standard 12492 "Devices with vacuum insulation". Each column is subjected to an individual test at a temperature of 200° C. All columns are manufactured with opposite viewing stripes as standard. The types listed in the tables are only a selection of our well-selled columns.

All columns including the standard types are produced to the costume's order. Therefore modifications to the ground glass joints are usually offered free of charge.

In addition to the types described here, other versions are available on request at any time. With the aid of CAD we are able to send you on request an offer with drawings.

Packed columns

with standard or spherical ground joints

Packed columns have excellent rectifying characteristics and ensure high throughputs for small operating volume and low pressure drops. A funnel for fixing of the packings is fused into the lower part of the column. This avoids by-passing at the edges of the column. When smaller packings are used, larger packings must first be inserted in the funnel to avoid the smaller packings falling through the aperture in the funnel. The aperture in the funnel guarantees a free cross-section of at least 75 percent of the surface of the ground joint.

Packed-columns with added ground in joints

Possible ground in joints are

A) Conical ground joints NS 14/23 to NS 40/45
B) Spherical ground joints S 13 to S 64
C) Flange joints DN10 to DN 100

Packed-column with spherical ground joints
Packed-column with flange joints
Packed-column a la Hempel

Packed-columns with seated - in head joints

Possible ground in joints are

Conical ground joints NS 14/23 to NS 40/45
Spherical ground joints S 13 to S 64
Flange joints DN10 to DN 100

Packed-column with conical ground joints
Packed-column with spherical ground joints

Vigreux columns with standard or spherical ground joints

Vigreux-columns are far more suitable for vacuum applications than packed columns, as the pressure difference is extremely low. Compared to the packed columns, they have a very low rectifying effect.