Pressure resistant and pressure shock resistant fans

The enclosure versions are divided into “pressure shock resistant design” (PSR) and “pressure resistant design (PR)”.

PR pressure resistant design 

  • The fan casing is under permanent overpressure of more than 0.5 barg and is therefore subject to the Pressure Equipment Directive PED (97/23/EC).
  • Depending on the volume and pressure level, various strict type, design and production tests are mandatory pursuant to PED.
  • Operating conditions above 1.3 bar (pressure side) are outside the scope of the ATEX Directive (2014/34/EC), therefore simultaneous ATEX conformity is not possible for a PR fan.

PSR pressure shock resistant design 

  • Apart from the fan’s own pressure increase, the enclosure is not under overpressure, but can withstand a defined explosion pressure in the event of a brief pressure increase (e.g. due to an explosion).
  • This version is usually not subject to the Pressure Equipment Directive PED. On principle, ATEX fans according to 2014/34/EC can also be realised in PSR design.
Privacy Settings
We use cookies to enhance your experience while using our website. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. We also use content and scripts from third parties that may use tracking technologies. You can selectively provide your consent below to allow such third party embeds. For complete information about the cookies we use, data we collect and how we process them, please check our Privacy Policy
Consent to display content from - Youtube
Consent to display content from - Vimeo
Google Maps
Consent to display content from - Google
Consent to display content from - Spotify
Sound Cloud
Consent to display content from - Sound