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DIN Seals – Precision and Quality to Standard

Our DIN seals meet the highest quality standards and comply with common industrial and technical norms.
They provide reliable sealing against liquids, gases, and oils, and are available in various materials, thicknesses, and dimensions.
Whether flat gaskets, O-rings, or special seals – every version is precisely manufactured according to DIN standards, ensuring durability and perfect fit.
Ideal for applications in mechanical engineering, sanitary systems, automotive, and many other sectors.

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Black EPDM flat gasket 3 mm with info label showing inner and outer diameter and drinking water approval
EPDM rubber flat gasket 3 mm DIN 2690 with drinking water approval
EPDM Flat Gasket | DIN 2690 | drinking water approved, ozone & UV resistant | 3 mm | 1/8"–4"

From €1.12
Three black EPDM DIN 2690 flange gaskets in different ring sizes on a white background
Flange Gasket DIN 2690 Rubber EPDM - made to measure
High-quality EPDM flat gasket according to DIN 2690 in many different versions

From €1.89
Custom shape or drawing part?
Custom shape or drawing part?
Customized solutions tailored to your requirements – fast, precise, and reliable. Upload your drawing as DXF or PDF and we will prepare your quote.
Request a quote
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Secure payment methods

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Fast delivery time

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Order directly from stock

14 Tage Rückgaberecht

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What Are DIN Gaskets?

DIN gaskets are standardized flange gaskets manufactured according to the German Industrial Standards (DIN). They are made from various materials such as fiber, rubber, or metal and provide reliable protection against leaks in pipelines, fittings, and machinery. The gaskets are precisely cut and ensure high sealing performance under varying pressure and temperature conditions.

Material Properties

DIN gaskets are used wherever standardized sealing and mechanical stability are required. Typical properties include:

  • High sealing performance even under pressure and temperature fluctuations
  • Temperature resistance depending on the material (e.g. fiber material, NBR, EPDM)
  • Resistant to water, oils, lubricants, coolants, and air
  • Clean, burr-free edges with custom cuts
  • Uniform surface pressure for perfect flange connections

The available afm30 material is a universally applicable fiber gasket material in DIN A4 format / 200 × 300 mm, ideal for prototypes, individual cut-outs, machine maintenance, and repair applications.

Frequently Asked Questions

A DIN gasket is a gasket whose shape, dimensions or design conform to a specified DIN standard or a recognised standard size. This makes it easier to match the gasket to standardised components and installation requirements.

Standardised gaskets have clearly defined dimensions, making them easier to select, replace and reorder. This is particularly advantageous for maintenance, repairs and recurring requirements.

No. DIN gasket is a general term for gaskets that comply with a standard or standardised dimensions. This category focuses on standardised flat gaskets. Some of these are specifically designed for flange connections and are therefore both DIN gaskets and flange gaskets.

A flange gasket with dimensions according to DIN 2690 is a ring-shaped gasket for flanges with flat sealing surfaces. It is fitted between the two flange faces, inside the bolt circle.

The historical standard DIN 2690:1966-05 has been withdrawn. Its designation continues to be used to identify the established gasket dimensions. For new projects or projects subject to specific standards, the currently applicable technical requirements should be checked.

DN refers to the nominal size of a pipe or flange system. PN indicates the nominal pressure rating. The specific dimensions, material and operating conditions must also be taken into account.

The material used depends on the relevant standard and application. Possible materials include elastomers such as EPDM or NBR, as well as various fibre-based and composite materials. The materials actually available are specified in the respective product description.

Check the standard designation, gasket type, nominal size, pressure rating, and inner and outer diameters. The material, medium, temperature and operating pressure must also be suitable for the intended application.

The DIN standard number is an important starting point, but it is not always sufficient. You should also compare the specific product dimensions and technical properties with your existing installation requirements.

For special standard dimensions, materials or technical requirements, custom gasket solutions can be requested from diconfa. Wherever possible, detailed information on the relevant standard, geometry, material thickness and intended application should be provided.
Flat Gaskets
Sanitary & Installation Sanitary & Installation DIN Seals DIN Seals Flange gaskets Flange gaskets
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