Where discharge from the system discharge devices would create a hazardous condition or conflict with local requirements, an approved alternate method to achieve full flow conditions shall be permitted.

The dry testing method has many benefits:

  • Testing is safer and less expensive
  • The testing can be performed without interrupting production
  • The preparation for dry deluge testing is less than wet tests
  • Any leaking flow pipes are easier to identify
  • Residual water from former tests will be blown out of the deluge system
  • The process equipment is protected from any water contact during testing maintaining plant integrity
  • Reduced internal corrosion in flow pipes, leading to less solids in the system and thus, resulting in fewer blockages
  • No new organisms like shells can grow in flow pipes, reducing blockages

Partially Blocked