Reinforced Membranes

Today, Tumedei is one of the world’s leading manufacturers of fabric reinforced membranes for a range of industries and applications.

  • Fabric reinforced diaphragms
  • Rolling diaphragms
  • Rubber diaphragms
  • Convoluted diaphragms
  • Deep convoluted diaphragms
  • Elastomer range: NBR, EPDM, CR, ECO, FKM, VMQ silicone and others.
  • Material 40 to 80 Shore A.
  • Materials available with international approvals for drinking water, see“Materials” section.
  • Under certain production conditions the hardness can be maintained between +/-3 shore A. However the normal hardness tolerance is usually +/-5 IRHD.
  • Under certain production conditions, dimensional tolerances may be kept below Class M1 (ISO3302).
  • Ability to produce membranes adhered to inserts or plates made of plastic and/or metal.

Rolling membranes are reinforced membranes which are typically tall, therefore the height/diameter ratio can make the relative production process challenging.


TEXTILE MATERIALS – knitted or woven fabrics used for the production of reinforced membranes.

  • Polyester fabric
  • Polyamide fabric
  • Nomex fabric
  • Kevlar fabric
  • Carbon fibre fabric
  • Glass fibre fabric

Application fields:

  • Automotive industry
  • Industrial equipment and machineries
  • Pneumatic valve industry
  • Water management industry