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Rubber seal

Are you looking for a high-quality customised rubber seal? Then you’ve come to the right address. Ridderflex has been specialised in the production of seals and gaskets for over twenty-five years. Rubber gaskets are very versatile and in some cases a cheaper alternative for non-asbestos gaskets.

Rubber seals in various grades

A rubber seal can be produced in any desired rubber grade. In a foodgrade or in a grade that is resistant to seawater or chemicals. Ridderflex has a large stock of various rubber grades, such as: EPDM, Neoprene, Nitrile (NBR), SBR, Para Rubber, Silicone (VMQ) and Viton® (FKM). But we also have many grades of cellular rubber, sponge rubber and foams in our product range. View our full range of rubber for the availability of the materials.

Rubber gasket seals

We supply amongst others the following rubber gaskets and seals:

(Flange) gasket
Self-adhesive gasket / seal
Square and rectangular gasket
Pressed ring
Rubber manhole gasket 
Rubber steel (lined) gasket

Universal seals

Ridderflex produces universal rubber (flange) gaskets and rubber steel lined gaskets according to DIN, ASA and ANSI sizes. We supply our o-rings according to the following standards:

  • DIN3770 / DIN3771 – German Standard
  • ISO3601 – International Organisation for Standardisation
  • AS568 – SAE (Society of Automotive Engineers) Aerospace Standard
  • BS4518 – British Standard
  • Extended series 500-800 – British Standard
  • British Dowty O-ring sizes
  • Le Joint Français ‘R’ metric
  • JIS B2401 – Japanese Standard

Custom-made rubber seal

Ridderflex also produces high-grade customised rubber seals. This can be based on your drawing or model. We are happy to advise you about the possibilities. Please call +31 (0) 180 46 34 71 or send us an e-mail.

Large diameter

Do you need a rubber gasket with a large diameter? No problem for Ridderflex. Our gaskets can be supplied in loose individual segments or ready made in one piece with diameters up to 20 or 30 meters. Are you curious about the possibilities? Please contact our sales department!

Related to rubber seal

  • Rubber steel gasket

    Rubber steel gasket

    Different types. A.o. with internal o-ring, without internal o-ring and wedge shape.

  • Manhole gasket

    Manhole gasket

    In different materials, such as: rubber grades, Flangiflon (PTFE) and graphite.


ISO including co-engineering

Ridderflex complies with international quality management requirements. We are now also certified for co-engineering – our strength – . Read more


Any questions about products or make an enquiry? Simply call us or send us an e-mail. +31 (0) 180 46 34 71