Pre-start ventilation systems for large Ex e & Ex n electric motors & generators
In some cases, high-voltage Ex e and Ex n motors installed in hazardous areas require “special measures” to be implemented prior to start-up, to reduce risks of ignition caused by air gap sparking. These measures typically include pre-start ventilation the motor casing with instrument air for a specified time to eliminate any build-up of hazardous gases or vapours.
With more than 1,300 pre-start ventilation systems supplied for large electric motors and generators, Expo is the world’s most experienced designer and manufacturer.
Use the table below to choose a system suitable for your application
Special motor pre-start ventilation systems
Expo can design and build custom motor pre-start ventilation systems, for instance for very large motors where high flow rates are required Please call +44 (0) 20 8398 8011 to speak to one of our purge and pressurization experts or contact us.