EXKOP System Explosion Isolation with Quench Valves

This system isolates plant components in both directions and comprises a self-monitoring EXKOP® controller with data storage and one or several quench valves.


EXKOP® systems are suitable for filling lines, aspiration lines and pipes, pneumatic conveyor lines and air intake openings. As well as operating as a decoupling system for dust-bearing plants, the EXKOP® system can also be used as a spark arrester or overpressure limiter.


Applications + Industries

  • Aspiration Plants
  • Breweries
  • Elevators
  • Filters
  • Conveyors
  • Wood Processing
  • Food Production
  • Mixers
  • Mills and Grinding Plants
  • Recycling
  • Screens
  • Silos
  • Destoners
  • Spray Dryers
  • Animal Feed Production


In the event of an explosion, the EXKOP® controller receives a trigger signal (e.g. from the signaling unit of the Q-Rohr® or an explosion vent, from a pressure switch or spark detector) and activates the connected EXKOP® quench valves. These close within a few milliseconds and thus protect adjacent plant components. After being triggered, the quench valves can be put back in operation once again at the touch of a button.


  • Effective protection through high-speed detection of explosion events.
  • Returns to operation again immediately after triggering.
  • Self-monitoring safety electronics with operating data storage.
  • Modem-compatible system analysis allows for remote maintenance (optional).
  • Instant status forwarding to customer PLC (Alarm, failure, maintenance, etc.).
  • Processes wide range of trigger signals for easy retrofitting to existing plants.
  • Fail Safe mechanism automatically closes the valve if the power/compressed air fails or the valve is manipulated.
  • Reliable, process-optimized protection against explosions in adjacent plant components.
  • Avoid downtime after the mechanism is triggered.