ATEX Rotary Valve Lock Chutes & Protection Systems
Rotary valve locks for dust-prone areas at risk of explosion—ranging from intrinsically safe devices to pressure-shock-resistant and ignition-proof protection systems.
- Over 100 years of experience
- Made in Germany
- DIN ISO 9001:2015
- ATEX 2014/34/EU
The principle:
- Hazard Assessment
2. Rotary valve
3. Appropriate Safety Plan
- Ex-G pursuant to 2014/34/EU
- Ex-S up to 10 bar
- Ex-GD up to 10 bar
- Ex-GD Size 160–275, Round
Why is the rotary valve important here?
Ex-G: intrinsically safe device
ATEX-compliant equipment design in accordance with Directive 2014/34/EU for suitable dust applications.
Ex-GD: pressure surge-resistant
Pressure-surge-resistant ATEX-certified design up to 10 bar; available in round versions for ZRS N sizes 160–275.
Ex-S: Protection System
Pressure-shock-resistant and spark-proof protective system design up to 10 bar for defined protection concepts.
Technical Consulting
Zone, dust characteristics, pressure relief, installation conditions, and interfaces are evaluated on a project-by-project basis.
Overview of ATEX Models
- Ex-G: Intrinsically Safe ATEX Device
- Ex-S: ATEX protection system, pressure-shock-resistant and flame-penetration-proof up to 10 bar
- Ex-GD: ATEX-certified device, pressure surge-resistant up to 10 bar
- Directive 2014/34/EU
Custom design
The material to be conveyed, temperature, pressure conditions, design, rotor, and material are determined on a project-specific basis.
Typical conveyed materials / applications
- Chemical industry
- Pharmaceutical Applications
- Filtration Systems
- Abrasive Products
- Change of Material
- Food industry
- Recycling
- Pneumatic Systems
- High-Temperature Applications
- Other Special Cases
Frequently Asked Questions
What is the difference between Ex-G, Ex-GD, and Ex-S?
Ex-G is the intrinsically safe version of the device. Ex-GD is pressure-shock-resistant, and Ex-S is additionally designed as a flame-proof protection system.
Up to what pressure are Ex-GD and Ex-S available?
The ZRS-N product page lists Ex-GD and Ex-S up to 10 bar. Ex-GD applies to round sizes 160–275 on that page.
Is selecting an ATEX airlock alone sufficient?
No. The safety concept must be consistent with the risk assessment, zone configuration, and the entire system.
Transmit technical data:
Does your application not fit the standard?
Simply upload a photo, drawing, or PDF—send us the drawing, photo, or technical specifications—and we will check for the suitable version.
