CEFIL’AIR® Inflatable Seals

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: Silicone, SBR, EPDM, FKM, HNBR, which offer highly resistant mechanical and physical properties to ensure a long lifetime and numerous operating cycles
  • Highly flexible design: available in a large selection of shapes and sizes
  • BIO-GUARDIAN ® elastomers prevent the development of bacteria and biofilm formation
  • 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)


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