Pneumatic seals offer the easiest, safest and most effective way of sealing parts that move in relation to one another and need to be connected and disconnected. CEFIL’AIR® seals, which are expanded and retracted by a pneumatic process, feature a patented design that employs advanced elastomers and modern manufacturing techniques to meet the requirements of numerous applications.
BIO-GUARDIAN® SEALS: essential to the medical, pharmaceutical and food industries, the BIO-GUARDIAN® sealing solution prevents bacterial and microbial growth on equipment and materials. The BIO-GUARDIAN® solution can be used in CEFIL’AIR® inflatable seals to meet the needs of demanding hygienic applications.
Features & Benefits
- Expand and retract with movement of fluids (pneumatic or hydraulic)
- No seal stress during opening and closing phases
- Large material selection: VMQ, BIO-GUARDIAN®, SBR, EPDM, CR, FKM, NBR, HNBR, which offer highly resistant mechanical and physical properties to ensure a long lifetime and numerous operating cycles properties to ensure a long lifetime and numerous operating cycles
- BIO-GUARDIAN ® elastomers prevent the development of bacteria and biofilm formation
- Highly flexible design: available in a large selection of shapes and sizes
- Laser marking for complete traceability
- RFID chip can be included for traceability & reliability
- Can be used for moving, handling, holding or clamping, particularly large, fragile or complex objects
Product Applications
- Movable cofferdam bulkheads
- Storage and transport containers
- Leak-tight panels (naval, aerospace industry)
- Nuclear vessels (equipment or personnel chambers)
- Isothermal chambers
- Clean rooms
- Phonic isolation
- Sliding or quick-locking doors (autoclaves, sterilizers)
- Centrifugal filters (access doors and drainage hoppers)
- Aircraft access doors
- Cockpit canopies
- Portholes
- Cofferdams
- Pneumatic conveyors (bagging hoppers, valve gates)
Specifications
| Temperature | Pressure | Leak rate |
|---|---|---|
|
from -50°C (-58°F) to +200°C(+392°F) depending on the selected raw material |
from vacuum to 12bar and more if the gap is reduced Include VMQ, BIO-GUARDIAN®, CR, NBR |
Bulloscopy - gas: 10-4 atm.cm3/s - fluid: 10-9 l/s |


















