PTFE O-Ring FEP Encapsulated Silicone FKM O Ring

Product DescriptionDescriptionFEP is a thermoplastic material with properties similar to PTFE. O-rings which are seamlessly coated with FEP have an elastic core made from FPM or VMQ and are used if very high thermal or chemical loads are present. The high chemical resistance of the coating protects the core against damage by the potentially aggressive medium.FEP coated O-rings are used - similar to PTFE-rings - where the chemical resistance of the normal elastomer O-ring is no longer sufficient, but where a certain elasticity is needed. The elasticity is ensured by the inner ring and the chemical resistance is achieved by the seamless FEP coating.ApplicationsFEP coated O-rings are perfectly suited for the chemical and petrochemical sector, medical technology, food sector, water and waste water technology and similar industrial applications. A typical application for FEP coated O-rings is the sealing of valve stems and as a secondary sealing element for slow switching and rotary movements.PropertiesVery good chemical resistance against most liquids and chemicalsTemperature range from approx. -60 °C to 200 °C [depending on inner ring material]No contamination of food, pharmaceutical or medical productsPhysiologically harmless, can be sterilisedSufficient elastic behaviourFEP O-rings can be replaced with standard O-ring seals without limitationNo changes to the groove dimensions are necessaryThe O-rings are less flexible than elastomer O-rings due to the FEP coating. They can only be stretched minimally and have a lower elasticity or a higher permanent deformationFEP-encapsulated O-Rings (Fluorinated Ethylene Propylene):Outstanding chemical and corrosion resistanceLow coefficient of frictionResilience with choice of elastomeric coresLow compression setTemperature range: -75°F to 400°F (-60°C to 205°C)Unlimited sizes (No tooling charges)Solid & hollow silicone, FKM coresFood Grade - non toxic materials availablePFA-encapsulated O-Rings (Perfluoroalkoxy). Same as FEP above but with these added benefits:High temperature applications to 500°F (260°C)Higher mechanical strengthBetter flex-lifeLow vapor permeationExcellent stress and crack resistanceLonger wearabilitySolid silicone & FKM core  Rubber O Rings Information   Material   Hardness (Shore A)   TemperatureSizeStandardAvailableNBR (Nitrile, Buna)FKM (FPM)EPDMVMQ (Silicone)HNBRFFKM60-9070-9060-9010-7060-9070-90-40ºC - 110ºC-20ºC - 220ºC-45ºC - 150ºC-55ºC - 204ºC-48ºC - 180ºC-18ºC - 326ºCAS-568 (USA)JIS-B2401 (Japan)DIN-3771 (Germany)BS-1516 (UK)ISO3601 (International)R (France)     ID≤2000mmC/S≤40mmResistanceColorCertificateApplicationEngine OilHydraulic FluidChemicalOzoneSteam & Hot WaterLow TemperatureHigh TemperatureBlackBrownGreenRedWhiteBlueColor as request   ISO9001RoHSREACHFood Grade CertSGSAutomotive IndustryConstruction MachineryMachine Tool EquipmentWater TreatmentChemical ProcessingHydraulic PneumaticIndustrial Manufacturing  Company ProfileFAQ1. Q: What is your main product range?A: SWKS is professional in designing, developing and manufacturing rubber products. For example, o rings, oil seals, piston and rod seals, rubber shock absorbers and custom rubber products.2. Q: What kinds of rubber materials are available?A: NBR, FKM, VMQ, EPDM, CR, SR, PU... other rubber compounds can be with your request.3. Q: What shall be provided before a offer?A: The materials and dimensions are needed before a offer. If the product is nonstandard, the drawing or sample shall beprovided.4. Q: What's your payment terms and delivery date?A: T/T, L/C, Western Union, Paypal,etc. Normally, delivery date is 7-25days according to the order.5. Q: Which shipping method will be used for a delivery?A: DHL, FedEx, TNT, UPS, EMS ... By seal or by air are also available.6. Q: How to packing the goods?A: All goods will be well packed into pp bags and outer cartons. Special packing can be available with customers' request./* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1