Product category:
Industrial Motors
News Release from: ABB Automation Tech (Drives and Motors) | Subject: Motors for hazardous area heat exchangers
Edited by the Engineeringtalk Editorial
Team on 28 April 2005
Motors turn to hazardous area cooling
tasks
ABB has introduced a new motor design for hazardous area air cooled heat exchanger applications.
ABB has introduced a new motor design for hazardous area air cooled heat exchanger applications The motors are fitted with a specially designed end shield and a maintenance-free, noncontacting labyrinth seal to prevent damage caused by water ingress
This article was originally published on Engineeringtalk on 8 Feb 2000 at 8.00am (UK)
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Air-cooled heat exchangers are used as process coolers in gas processing, petroleum refining and similar applications within the chemical, oil and gas and petrochemical industries.
Motors in this application are positioned vertically, shaft up in very demanding site conditions such as high humidity, rain and dust.
It is extremely important to prevent any damage caused by water entering the motors.
This puts high demands on the sealing, particularly to ensure the bearings are protected.
An air-cooled heat exchanger is used to reject heat from fluid directly to the ambient air without using water as a cooling medium.
This enables plant with a high cooling requirement to be placed in locations without a water supply.
The new design can be used for both foot and flange mounted low voltage, nonsparking and flame-proof motors, IEC frame sizes 160-250.
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