Design & Build
An ATEX Zone 2 Explosion Proof System is a specially designed electrical or refrigeration system built to operate safely in environments where flammable gases, vapors, or fumes may occasionally exist.
ATEX stands for:
ATmosphères EXplosibles
A European safety certification and directive for equipment used in hazardous explosive environments.
What is Zone 2?
In hazardous area classification:
| Zone | Risk Level | Description |
|---|---|---|
| Zone 0 | Very High | Explosive gas is continuously present |
| Zone 1 | High | Explosive gas may occur during normal operation |
| Zone 2 | Moderate | Explosive gas is NOT normally present, but may occur temporarily |
Zone 2 areas are commonly found in:
- Chemical factories
- Oil & gas facilities
- Paint spray booths
- Fuel storage areas
- Industrial cold rooms
- Pharmaceutical plants
- Food processing plants using alcohol or solvents
What is an Explosion Proof System?
An explosion proof system is engineered to:
- Prevent sparks or heat from igniting flammable gases
- Contain any internal explosion safely
- Reduce ignition risk from motors, switches, wiring, and controls
- Maintain safe operation in hazardous industrial environments
Typical explosion-proof components include:
- Explosion-proof compressors
- ATEX-certified electrical panels
- Flameproof motors
- Intrinsically safe sensors
- Anti-spark lighting systems
- Hazardous-area cabling and switches
ATEX Zone 2 Refrigeration System
For industrial refrigeration and cold room applications, an ATEX Zone 2 system may include:
- ATEX condensing units
- Explosion-proof evaporators
- Hazardous-area control panels
- Spark-free fan motors
- Gas detection systems
- Emergency shutdown systems
These systems are commonly used for:
- Chemical cold storage
- Solvent storage rooms
- Petrochemical processing
- Pharmaceutical refrigeration
- Alcohol beverage production
- Battery and lithium storage facilities
Main Benefits
Safety Compliance
Helps industries comply with European ATEX safety regulations.
Reduced Explosion Risk
Minimizes ignition sources in hazardous environments.
Reliable Industrial Operation
Designed for continuous heavy-duty industrial use.
Insurance & Regulatory Approval
Required by many industrial authorities and insurance providers.
Common Certifications
ATEX systems may carry certifications such as:
- ATEX Directive 2014/34/EU
- IECEx
- CE Marking
- Ex d / Ex e / Ex n protection types
Example marking:
Ex nA IIB T3 Gc
This indicates:
- Non-sparking protection
- Gas group compatibility
- Temperature safety class
- Zone 2 suitability