Composed completely of glass, coil heat exchangers are typically used as vapor condensers and liquid coolers. They are usually designed and installed as an integral part of a vertical column. To provide a reliable corrosion resistant internal seal, the coil battery is sealed to the jacket, creating a single unit. Boilers and immersion heaters are also available in this all-glass coil design.
Other DesignsWe also offer glass cascade coolers, bayonet and jacketed-type heat exchangers. For further information on these special application models, please contact us.
Shell & Tube Heat ExchangersWe also offer a wide range of shell and tube heat exchangers ranging from 13.5 to 505 sq. ft., all capable of modular expansion. For further information on these units go to the heat exchanger page, or contact us.
Technical DataHeat Transfer in CondensersThe heat transferred in coil condensers con be considered generally as 55 Btu/hr-ft2-°F for any unit. This figure may vary from 10 to 72 Btu/hr-ft2-°F depending on the fluids involved and the operating conditions.
Vapor to becondensed
Liquid to becooled
Gas To becooled
Heat TransferCoefficientBTU/hr. - ft2 - °F
The heat transfer coefficient also varies with the size of the condenser. The following table gives an indication of the performance of condensers at atmospheric pressure, using water as a coolant in the coils (inlet temperature 68 F) and steam condensing in the jackets. These figures do not show the maximum performance of the units but are a general indication of typical working conditions.
Coil heat exchangers are an all-glass design. There are no internal sealing problems, as the coil is welded into the jacket forming a one-piece unit. This design is a practical means of packing a large amount of heat transfer surface into a small volume.
Notes on the use of coil type condensers
Note: allowing a minimum pressure drop of 30 psi (2.1 bar) will result in the most efficient overall heat transfer.
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