
ROXX TECH is the representative of Thorwesten Vent GmbH in Poland. We supply constructional dust explosion protection systems, install and commission them, and carry out their annual inspections in explosion-hazard areas.
Thorwesten Vent products
- Self-closing explosion vents – safely relieve explosion pressure and then close automatically. They are reusable, so the plant can quickly return to production.
- Flameless venting systems – for equipment inside buildings where flames cannot be vented outside.
- Venting ducts – safe discharge of the pressure wave out of the building.
Benefits of self-closing vents
- After venting, no atmospheric oxygen enters the equipment – lower risk of secondary fire.
- Inert extinguishing gas does not escape.
- High venting efficiency.
- Silo protection against implosion as well.
- Optional trace heating against icing and snow load.
- Little or no downtime.
Certificates and standards
- Certified to ATEX 2014/34/EU.
- Vent sizing according to EN 14491 and NFPA 68.
Applications
- Asphalt plants – including pulverised coal systems.
- Cement and lime plants – coal mills with filters, pulverised coal silos.
- Sugar factories and the food industry – dryers, cyclones, process filters and silos.
- Alternative fuel and biomass storage – enclosed silos with potentially explosive atmospheres.
- Pipelines and interconnected equipment – limiting flame propagation.
Annual inspection
Regular inspection ensures the system will work when it matters. It includes:
- Simulation of the electronic system – testing sensors and signalling.
- Condition assessment of mechanical components – checking wear, corrosion and damage.
- Adjustment of function-critical components – restoring full functionality of the vents.
- Inspection report – documentation for the operator.
Our technicians are trained by TÜV NORD.
Full support
- System design and selection.
- Installation or installation supervision.
- Commissioning.
- Spare parts.
- Annual inspections and service contracts.
Need an inspection or advice? Contact us.

