Inflatable annular sealsInflatable annular seals

Inflatable annular seals

Of donut shap, the inflatable annular seals are highly efficient in sealing, isolating, tightening, clamping, pressing and handling applications.

They fit onto silo or hopper gutters, tubes and often serve as inflatable seals. Tailor-made, various materials and accessories are offered to adapt to your environment and your usage constraints: pressure, temperature, chemicals in contact, service life, mounting, etc.


Handy to use

  • Single air inlet
  • Fast inflation
  • Material that adapts to irregular surfaces


  • Thin when deflated
  • Small size
  • Sealed (rubber) contact zones


  • No mechanical parts
  • No maintenance
  • Long service life

Detailed information

  • Material: different kinds of elastomer coated fabrics (NPVC, SBR, Nitril, VAMAC, etc.)
  • Manufacturing technique: hot vulcanization or high-frequency welding
  • Standard dimensions: minimum diameter of 50 mm
  • Custom dimensions: contact us
  • Shape: donut or annular
  • Inflation: air, water or oil
  • Temperature resistance: up to 150°C depending on materials
  • Max. inflation pressure: 7 bar or more depending on conditions of use
  • Max. thickness: from 4 mm
  • Lifting travel: depending on dimensions and application

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Care during use
Avoid any contact with surfaces that are too abrasive or have cutting edges. Stabilise and guide the load to lift. Refer to the Installation manual.
Maintenance advice
There are no fixed maintenance intervals.
Storage advice
Store away from light, damp and temperature variations, in its original case
Inflation advice
Refer to the cylinder table in the offer.

Standards / regulations

1 year against all manufacturing defects.


Fact Sheets / Business Guides
  • This field is for validation purposes and should be left unchanged.


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