Q-Flap Non-Return Explosion Valve (self-monitoring capability available as an option)

Applications:

• grinding plants, wood processing, paint manufacturers
• chemical and pharmaceutical
• processes: drying, granulation, grinding, dust extraction

Specifications:

• A: operating principle
  • during normal operation the flap is maintained in an open position by the flow of air
  • when idle, the flap closes under its own weight
  • at the moment of activation, until the required speed of gas flow is reached, the flap is protected by a special dampening element
  • in the event of an explosion the flap is spontaneously closed by the face of the pressure wave (stoppage of pressure and flame)
  • the vibration dampener protects the flap against undesirable opening caused by the vacuum created in the system after an explosion
• B: self-monitoring function
  • wear and tear sensor can be fitted as an option to monitor the abrasion that develops on the flap itself. This sensor will prolong the flap's operating life. As standard Q-Flap is equipped with an integrated clogging sensor that indicates any kind of product accumulation underneath the seats and ensures safe closing of the flap.
• C: benefits
  • Q-Flap is certified to meet EN 15089 (from 04.2007)
  • sutable for organic and inorganic dusts
  • passive system
  • two sensors monitoring flap operation (option, can be added at a later time)
  • easy opening of the flap’s housing using a clip-on cover (for inspections or maintenance)
• D: application restrictions
  • air flow velocity within 15-30 m/s
  • dust Kstmax value up to 300 bar m/s (ST1 and ST2 class)
  • reduced Pred explosion pressure below 0.4 bar
  • horizontal mounting, one-way operation