![]() ![]() O-Rings are available in a wide range of standard and non-standard sizes that are suitable for nearly all sealing applications. When compressed between mating surfaces, an O-Ring blocks the passage of liquids or gases. Please note that resistances, pressures and temperatures are mutually influenced by various parameters. An O-Ring is a solid-rubber seal shaped like a dough nut or torus. A particularly very good material regarding application temperature and media resistance is FFKM of the Dichtomatik brand.įor more detailed information on resistances as well as special applications, standard dimensions, tolerances, materials, certifications, and design guidelines for static and dynamic applications, please download our O-ring brochure.FEP encapsulated with VMQ core (temp.: -60 to +205 ☌) or FKM core (temp.: -20 to +205 ☌): resistant to aggressive acids, bases, alcohols and oils.VMQ (temp.: -55 to +200 ☌): resistance in water (up to +100 ☌), aliphatic engine and transmission oils, animal- and plant-based oils and greases.HNBR (temp.: -30 to +150 ☌): see NBR – additional heat, ozone and aging stability and wear resistance.HFC up to about +50 ☌ and water up to a maximum of +80 ☌ NBR (temp.: -30 to +100 ☌): mineral oils and greases, hydraulic oils (H, HL, HLP), flame-resistant pressure fluids HFA and HFB.+80 ☌), good weathering, ozone and ageing resistance FKM (temp.: -15 to +200 ☌): mineral and synthetic oils, engine oils, HFD flame-resistant pressure fluids, aliphatic, aromatic and chlorinated hydrocarbons, water (max.EPDM (sulfur cross-linked temp.: -45 to +130 ☌ peroxide crosslinked temp.: -50 to +150 ☌): hot water, steam, detergents, caustic soda and potash, silicone oils and greases, many diluted acids and chemicals, glycol-based brake fluids – no mineral oil-based oils and greases.Premium Freudenberg products are the right choice for all applications ensuring highest quality and safety standards and therefore optimal total cost of ownership.Ĭhoose the Right Product Out of Several Types of Gasket Materials Important note: Dichtomatik products comply with common industrial standards and therefore are suitable for many applications excluding safety-critical ones like Automotive. ![]() Suitable for many industrial applications.Segment-specific-certified materials available.Special elastomer materials also available in different Shore hardnesses and colors upon request.Numerous standard dimensions available from stock.For special applications, the permissible tolerances for special articles can be restricted to industry class A and the form and surface deviations to grade characteristic S. O-rings of the product brand Dichtomatik are manufactured according to DIN ISO 3601-1, industry class B and the surface deviations according to DIN ISO 3601-3, special characteristic N. Under certain conditions, the dynamic use of an O-ring is also possible. O-rings are mainly used for static sealing of gaseous and liquid media. The O-ring achieves its sealing effect by deformation of the cross-section after installation and compression in the installation space. O-rings are primarily manufactured from elastomer materials. O-Rings Endless, Ring-Shaped Sealing Elements ![]()
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