Glass-Lined Steel Columns

24072006 Boitier Burgman Osram Bruntal 227

DDPS has a long history and experience in designing glass-lined steel column systems to meet individual requirements.  Our columns are manufactured to handle the toughest applications.  In addition to the standard assemblies, DDPS can also fabricate special designs for customer’s specific process requirements, including special conical, eccentric, stepped and angled column sections.


  • Diameters from 6” (150 mm) to 84” (2130 mm)
  • Lengths up to 236” (6000 mm)
  • Clamps, gaskets, split flanges and bolting are all supplied with a complete column system.


Additional options

  • Glass-lined support plates (donut, perforated, slotted)
  • Conventional or HemiCoil® jackets
  • Insulation support rings
  • Stainless steel clamps, flanges, or bolting
  • Special gaskets (e.g., thicker, channel cut, U-cut, Monel inserts, etc.)
  • Concentric or eccentric reducers/expanders
  • Davited manway covers
  • Supports - side lugs, removable rings, or support skirts

Glass Columns


Borosilicate glass columns have been used successfully for many years in the field of distillation operations mainly for the benefits of its anti-corrosive and transparent material of construction.  They are normally filled with packing materials made of borosilicate glass, but other packing materials can also be supplied.  Cooling arrangements for the distillate can use either shell and tube or coil type heat exchangers.


  • Diameters from 3" (80 mm) to 40" (1000 mm)
  • Heights up to 100 ft (30 meters)
  • Operates at atmospheric pressure or at high vacuum


Additional options / components

  • Durapack - a structured glass packing with outstanding separation properties, ideal for processes that require no metal.
  • Core-Tray support - provides a solution for the problem of metal-free support trays with a large free cross-section of 120%. (Liquid feeds based on the same Core-Tray design principle are also available).
  • Liquid collectors
  • Redistributors
  • Automatic control system
  • Reboiler vessels
  • Condensers / Boilers / Coolers  
  • Reflux separators and timers
  • Various types of packing

Overheads for Reactor Systems

Overhead components can be integrated with your reactor (or other type of vessel) to create a system that can efficiently carry out reaction, distillation, and other process functionalities.  DDPS glass and glass-lined steel columns can both be incorporated with a process vessel to handle multiple unit operations within a single system.


Distillation top with shell and tube heat exchanger and external reflux separator for vessels above 630 liters.


Distillation top with shell and tube heat exchanger and external reflux separator for vessels above 630 liters.


Falling condensation in the vacuum with receivers.


Distillation columns with controlled reflux condition for concentration with random packing or DURAPACK.


Distillation top with phase separator for azeotrope mixture. Optional interconnection of phases.

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