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Description
In our offer you will not find a very wide range of materials and dimensions of rings according to DIN, ISO, BSI, ASTM, ČSN and other standards. The wide range of materials allows the use of o-rings in virtually all types of media.
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There are cross sections of cords of 0.35 to 40 mm and internal diameters of the O-rings up to 5000 mm .
The O-ring is mainly used as a static seal. In the case of dynamic application, it is necessary to observe the restrictions based on speed and sealed pressure. When choosing an O-ring, care must be taken to select the correct material based on the required temperature, chemical and other resistance.
Materials
Type Description Hardness Shore A Temperature resistance °C NR (Para rubber) It is distinguished by its abrasion resistance, high elasticity and good physical-mechanical properties. It is not resistant to oil, ozone, atmospheric influences. 30 - 95 Od -40 do +85 SBR A cost-effective type of synthetic rubber for general use. It has poorer resistance to atmospheric influences and chemicals. 30 - 95 Od -30 do +100 NBR Oil resistant rubber for use primarily in mineral oil based media applications. 30 - 95 Od -30 do +100 HNBR Compared to NBR, it excels in tensile strength. Maintains properties when exposed to heat, oil and chemicals. 30 - 95 Od -40 do +150 EPDM Rubber resistant to atmospheric influences, UV and ozone radiation. Excellent temperature resistance. 40 - 85 Od -50 do +150 CR (Neoprene) It is mainly used in refrigeration technology and applications where the seal is exposed to external weathering. 40 - 90 Od -20 do +100 VMQ (Silicone) Material resistant to high temperatures, atmospheric influences and selected chemicals. Suitable for food applications. 20 - 80 Od -60 do +200 FPM/FKM (Viton) Rubber with excellent chemical and heat resistance. It is mainly used in high temperature mineral oil and grease based applications. 65 - 90 Od -20 do +200 FFKM It is used in the chemical and process industries for its excellent chemical and temperature resistance. For aggressive environments and high temperatures. 70 - 95 Od -30 do +325 -