Your Partner for Sealing Technology Trelleborg Sealing Solutions is a major international developer, manufacturer and supplier of seals, bearings and molded components in polymers. We are uniquely placed to offer dedicated design and development from our market-leading product and material portfolio: a one-stop-shop providing the best in elastomer, silicone, thermoplastic, PTFE and composite technologies for applications in aerospace, industrial and automotive industries. With 50 years of experience, Trelleborg Sealing Solutions engineers support customers with design, prototyping, production,...

Design Instructions Installation Recommendations General Quality Criteria and Guidelines for the Storage of Polymer Products Design Support & Engineering Tools Mobile Tools & Apps Latest information available at www.trelleborg.com/seals • Edition March 2022 TRELLEBORG SEALING SOLUTIONS •

The Kantseal is a good alternative to the O-Ring as an axial static seal in applications requiring higher gap extrusion resistance and minimal deformation of the cross-section. Their application and handling is comparable with those of O-Rings. It is used as a static seal so that the square form remains practically constant even under high pressures. with compression KWWWWW1 with compression and pressure activated Figure 2: Installation comparison - O-Ring/Kantseal OPERATING CONDITIONSADVANTAGES - High resistance to gap extrusion - Minimum mechanical deformation of the cross-section - Outstanding...

Design Instructions Table 1: Surface Roughness All edges of undefined shapes with max. chamfer of -0.2; according to ISO 13715 / ISO 10135. Latest information available at www.trelleborg.com/seals • Edition March 2022 TRELLEBORG SEALING SOLUTIONS • 5

Equipment manufacturers and end users expect sealing systems to operate leak-free over a long service life. Reliability is crucial to effective low maintenance-cost operations. To find the perfect sealing solution in each individual case, both material performance and seal design are critically important. One of the most used material groups for seals are the elastomers. Compounds can be chosen according to the properties required, such as elasticity or chemical resistance. The following tables provide a summary of the various elastomer material groups. Trelleborg Sealing Solutions can offer...

(saturated carbon molecules in main macro-molecule-chain) Ethylene Acrylate Rubber AEM Chlorosulfonated Polyethylene Rubber CSM CSM Ethylene Propylene Diene Rubber EPDM EPDM Ethylene Propylene Rubber EPM EPM Perfluoro Rubber FFKM FFKM (with oxygen molecules in the main macro-molecule chain) Epichlorohydrin Copolymer Rubber ECO ECO (unsaturated hydrogene carbon chain) Nitrile Butadiene Rubber NBR NBR Styrene Butadiene Rubber SBR SBR Hydrogenated Nitrile Butadiene Rubber HNBR HNBR (with silicone in the main chain) Fluorosilicone Rubber FVMQ FVMQ Methyl Vinyl Silicone Rubber VMQ VMQ (with carbon,...

APPLICATION PARAMETERS OF ELASTOMERS Elastomers, as all other organic chemicals, have limited use. External influences such as media, oxygen or ozone, as well as pressure and temperature, will affect the material properties and therefore their sealing capability. Elastomers can swell, shrink or harden and develop cracks or even tears. Figure 4 and Figure 5 illustrate the performance of various elastomers under different application parameters. ELASTOMER HEAT RESISTANCE / SWELLING IN OIL Max. working temperature (°C/°F) Change of volume in IRM-OIL 903, 70h (%) Figure 4: Change of volume in IRM-Oil...

Figure 5: Temperature ranges of various elastomers. Temperature ranges only apply when used with compatible media. Table 6: General Field of Application Excellent resistance to ozone, weathering and hot air, although it shows only a medium physical strength Low elasticity Relatively limited low temperature capability motive applications which require special resistance to lubricants containing many additives (incl. sulfur) at high temperatures - Good resistance to ozone, weathering, chemicals and aging - Good non-flammability - Good mechanical properties and cold flexibility. Table continues...

FKM (Fluorocarbon Rubber) FKM is also often used _ _ „ _ - Non-flammability, low gas permeability with mineral based oils (special types (special typesup to up to - Excellent resistance to ozone, weathering and greases at high _40 to +200) -40 to +392) +230 +446 - Good heat resistance and electrical properties - Very good low temperature flexibility - Excellent resistance to weather, ozone and UV rays - FVMQ shows a significantly better chemical resistance than standard silicone especially in hydrocarbons, aromatic mineral oils, fuel and low molecular aromatic hydrocarbons e.g. benzene and toluene...

- Excellent heat resistance, cold flexibility, dielectric properties VMQ is used for seals - Good resistance to weather, ozone and UV rays in food and medical -50 to +175 -58 to +347 UP UP ^ - Specific VMQ formulations are resistant to applications +230 +446 aliphatic engine and gear oils, water up to +100 °C (+212 °F) and high-molecular-weight chlorinated hydrocarbons Chemical compatibility For the pre-selection of a suitable material group, a comprehensive chemical compatibility guide is available. This can be downloaded from our website www.tss.trelleborg.com or you can contact your local...

KANTSEAL ■ Installation Recommendations Figure 6: Installation drawing Dimensions: Inside Diameter ID = 28.17 mm Cross Section W = 3.40 mm Material: NBR 90 Shore A Quality Index (Standard) Material Code If no quality requirements are specified with an order, standard quality Kantseal are supplied. The standard quality is defined by a '-' as the 10th digit in the Kantseal article number. A standard quality Kantseal has dimensional tolerances and surface qualities to Trelleborg Sealing Solutions standard TBS-00042. For surface deviations ISO 2859-1:2004-01 AQL 1.0 general inspection level II, normal...