Product description
An ATEX filter integrity tester is designed for verifying membrane filter integrity in environments where explosive atmospheres may be present. The system enables standard membrane integrity tests to be performed safely in hazardous industrial areas.Technical overview
Filtration processes involving solvents, alcohols or volatile chemicals are often operated in classified ATEX zones. In these environments, testing equipment must comply with explosion protection requirements. An ATEX filter integrity tester allows verification of membrane filter performance while meeting safety requirements for operation in hazardous areas. The device performs the same integrity test procedures used for membrane filtration validation in pharmaceutical and industrial filtration systems.Operating principle
The tester applies controlled gas pressure to a wetted membrane filter and measures the resulting gas flow or pressure behaviour. Typical integrity test methods include:- Forward flow / diffusion testing
- Bubble point testing
- Pressure hold testing
- Water intrusion testing for hydrophobic membranes
Material options
ATEX integrity testers are constructed using components suitable for operation in hazardous environments. Typical materials include:- Explosion-protected instrumentation
- Industrial stainless steel housing
- Certified pressure sensors
- Chemically resistant tubing and connectors
Available micron ratings
Integrity testing instruments verify membrane filters across a wide range of filtration ratings rather than performing filtration directly. Typical membrane filters tested include:- 0.1 µm sterilizing grade membranes
- 0.2 µm sterile filtration membranes
- 0.45 µm clarification membranes
- Other microfiltration membranes depending on process requirements
Design and construction
ATEX filter integrity testers are engineered for safe operation in hazardous industrial environments. Typical system features include:- Explosion-protected electrical or pneumatic components
- Pressure control and measurement systems
- Interfaces for connection to cartridge filter housings
- Data recording and test documentation capability
- Compatibility with standard membrane integrity test methods
Typical applications
ATEX filter integrity testers are commonly used in:- Chemical processing plants
- Pharmaceutical solvent filtration processes
- Alcohol and beverage production facilities
- Industrial filtration systems operating in ATEX zones
- High-purity chemical filtration
Key benefits
- Integrity testing capability in hazardous environments
- Compliance with ATEX explosion protection requirements
- Supports multiple membrane integrity test methods
- Suitable for filtration systems handling volatile liquids
- Compatible with cartridge and membrane filter systems
Configuration and quotation
To configure an ATEX filter integrity tester, the following parameters should be specified:- ATEX zone classification
- Required pressure range
- Filter type and membrane material
- Connection interface to the filter housing
- Required documentation or validation features
- Environmental conditions at the installation site