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ATEX in Extraction, Filtration, and Ventilation Systems
Explosion protection is always relevant in industrial air technology whenever flammable dusts, gases, or vapors may be present. What matters is not just the individual component, but the evaluation of the entire system, including collection, piping, filters, fans, discharge, grounding, and controls.
✔ Risk assessment and zone classification as a basis
✔ Take into account suitable materials and electrical conductivity
✔ Systematically minimize potential ignition sources
✔ Include grounding and equipotential bonding in the overall concept
Which ATEX components might be relevant?
Depending on the application, extraction arms, fans, filter systems, high-vacuum components, piping, dampers, sensors, and accessories in appropriately suitable designs may be considered. The specific variant required depends on the medium, zone, temperature, process, and installation situation.
| Category | Typical Task | Key Selection Criteria |
|---|---|---|
| Data Entry | Capture emissions as close to the source as possible | Medium, Geometry, Conductivity |
| Filtration | Particle separation | Dust characteristics, discharge, pressure loss |
| Air Conveyance | Provide flow rate and pressure | Characteristic curve, zone, temperature |
| Connections & Accessories | Securely Connect System Components | Grounding, equipotential bonding, material compatibility |
Selection and Planning
To ensure a reliable preliminary selection, as specific information as possible is required: which medium is being extracted, what type of area is involved, what volumes are generated, what temperatures occur, and how the system is configured. Pressure drop, flow rate, and operating mode are also relevant fluid dynamics parameters.
Maintenance and Operation
ATEX systems should be inspected regularly for secure connections, grounding, wear, deposits, and changes in operating conditions. Changes to the process or the system may require a reassessment.
FAQ
Does a single ATEX component make the entire system explosion-proof?
No. What matters is the suitability and evaluation of the entire system.
What information is needed to make a selection?
At a minimum: medium, zone classification, temperature, desired flow rate or extraction capacity, and the installation situation.
Is grounding always sufficient?
No. Grounding and equipotential bonding can be important measures, but they do not replace a comprehensive risk assessment.
Selection Guidance
For specific ATEX projects, the risk assessment, zone, medium, and system configuration should be available. Based on this information, the appropriate extraction, filtration, and air technology can be technically and accurately identified.
