High Temp O-Ring & Low Temp O-Ring Ranges | ESP International Viton and nitrile are the two elastomers most used for building O-rings, but Viton works especially well in high-temperature applications. Chemours, the Chemours logo, Courageous Chemistry, and the Chemours Courageous Chemistry logo are trademarks of The Chemours Company. Excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals. O-Ring Temperature Range: Purchasing O-Rings by Temperature - Wyatt Seal Allied Metrics specializes in providing high-quality sealing solutions for those in need. One of the first steps in designing a rubber seal is choosing the right material for your application. Range of withstood temperature is important for applications that will swing from hot to cold and vice versa, in addition to the products that will be used to seal multiple types of projects. Higher temperatures may be considered if exposure is short or intermittent. (March 2021) FKM is a family of fluorocarbon -based fluoroelastomer materials defined by ASTM International standard D1418, [1] and ISO standard 1629. Both Viton and nitrile O-rings have good abrasion and tear resistance, but nitrile will have higher resistance. Standard Low Temp: -26C (-15F) Standard High Temp: 232C (450F) SPEC SHEET: Viton 75 Durometer. This popular o-ring material family comparison shows basic rubber material family properties and performance plastic properties. FKM - Wikipedia | Sitemap, Registered Office: ERIKS N.V. - Chamber of Commerce North-Holland: 37 01 32 89 - VAT Number: NL003.076.490.B02, Viton O-rings have an extremely wide temperature range -50C to +205/230C (-15F to +400/440F), Low compression set and low gas permeability, Viton O-rings have excellent resistance to acids, mineral and vegetable oil and greases, fuels, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluid and several organical sovents and chemicals, Viton O-rings are exceptionally resistant to aging, chemical and ozone attacks. Despite the abovementioned characteristics, experts do not recommend silicone O-rings for dynamic applications. We offer the largest inventory of specialty and standard sealing solutions backed by best-in-class technology, service and support. News Viton O-Rings Supplier - Viton FKM Seals | Rocket Seals, Inc. The Viton O-ring withstands a condition of 230 C 24 h. Viton is a common name for the copolymer of hexafluoropropylene and vinylidene difluoride. Finding or designing seals for a specific application can be daunting, especially in specialty applications where performance matters most and failure is not an option. Doing so will prevent facilities and equipment from being either insufficiently resistant to temperature damage or a poor price fit for a given system. Comp. General purpose, low cost & high inventory FKM, AMS-R-83248 M83248/1-### PER MIL-R-83248 TY-1 CL-1, available in a UL recognized grade, compare to Parker V0747-75, Brown FKM Viton, improved oxidation resistance, compare to Parker V884-75, M83248/2-### PER MIL-R-83248C TY 1 CL 2, compare to Parker V0709-90, M83485/1-XXX PER MIL-R-83485 GLT-type FKM Improved low temp resistance, compare to Parker VM835-75, General purpose high durometer, good in high pressure and dynamic applications, compare to Parker VA153-90, General purpose softer FKM, compare to Parker V0986-50, General purpose softer FKM, compare to Parker V0769-60 and Parco 9009-60, White FKM, improved oxidation resistance, compare to Parker V1033-70, Internally lubricated with PTFE, reduces surface friction and sticking, similar to Parker V0848-75, Viton ETP, base resistant , best chemically resistant FKM, compare to Parker V1260-75, Viton GFLT recommended for Oxygenated Automotive Fuels (containing MeOH, EtOH, MTBE, etc. Assuming chemical compatibility is not a factor, we generally consider Buna O-rings to be better performers because of their resistance to a characteristic known as "compression set.". Due to the variety of operating conditions and applications for these products or systems, the user, through his or her own analysis and testing, is solely responsible for making the final selection of the products and systems. Resistant to: Petroleum base oils and fluids, some phosphate ester base fluids, silicone and silicate ester base lubricants, acids and halogenated hydrocarbons. Contact a Marco Sales Consultant or Engineer for more information. O-ring material recommendations. 25 to 450. O-ring material family chemical compatibility, temperature resistance, and other properties all factor in to o-ring material selection for an application. Additionally, temperature highs and lows are often given in terms of prolonged functional abilities, which may raise the minimum or reduce the maximum this is important to remember, as your o-rings will not be used once or twice in quick bursts but will be counted on for extended time periods under these heat conditions. Industries from aerospace to oil refining have systems in place that reach high temperatures, which can destroy or degrade seals quickly. Request a quote to place an order or contact us for more information. It is important that you analyze all aspects of your application. Polar solvents, low molecular weight organic solvents and glycol-based brake fluids, Internal Lubrication with Silicone oil, Moly and Graphite, Special tumbling for complete flash removal, Talcum powder on surface to reduce sticking. All of the designations stand for one single base material, which is fluoro rubber. O-Ring Kits | McMaster-Carr Technical Handbook O-rings Lower compression set values indicate improved remaining seal capacity. [3] All FKMs contain vinylidene fluoride as a monomer. While Viton is resistant to a long list of chemicals, it is not recommended for exposure to: In contrast with its high-temperature resistance, Viton does not retain flexibility at low temperatures, so it is not recommended for low-temperature applications. [9] FKMs can be divided into different classes on the basis of either their chemical composition, their fluorine content, or their cross-linking mechanism. Since 1980, our solutions have delivered reliable, long-lasting success for customers worldwide. FKM O-rings have been used safely for some time in SCUBA diving by divers using gas blends referred to as nitrox. When we talk about fluorocarbon O-rings, Viton is a popular trade name that may come into your mind. Resistant to: Dry heat (air to 400F) and high aniline point oils, Not recommended for:Most petroleum fluids, ketones, water and steam. Considering the maximum and minimum temperatures that will provide a seal will help narrow down material choices on each side of the spectrum. Below is a breakdown of these two categories and how the main o-ring material types stack up: As previously mentioned, o-rings provide a wide range of temperature variance where they will still provide a seal. For others type 60 to 90 Shore A are appropriate. Since 1980, our solutions have delivered reliable, long-lasting success for customers worldwide. Base resistant grades also offer improved resistance to amine based oil protectants found in new transmission oils. O-Ring Temperature Range: Purchasing O-Rings by Temperature. Specific material compound formulations can significantly alter the general performance properties. Viton O-Ring Temperature Range. Marco Rubber & Plastics is an industry leader in custom sealing solutions that go beyond the limits of catalog commodities. Additionally, it is also compatible with many types of hydrocarbons. Its important to note, however, that standard grades of Viton do not offer the same resistance to steam and ethanol fuels and should not be used in these applications. Please contact a Marco Sales Consultant or Engineer to discuss additional options. Fluoroelastomers are more expensive than neoprene or nitrile rubber elastomers. View the chart below or contact our experts to learn which is best for your application. Depending on the grade the working temperature range is considered to be -26C to +205/230C (-15F to +400/440F). . Consult a Marco Engineer for more details. Besides product, ERIKS offers also a range of services, 2023 ERIKS nv. Full operation at 450F will shorten parts' lifetime more than full operation at -15F. Maximum Temperature; 250 to 299 F: 300 to 399 F: 400 to 499 F: For Use With. But for short working periods it will take even higher temperatures. Viton is a specific brand of Fluorocarbon (FKM) and is a registered trademark of The Chemours Company. Most popular elastomer O-ring material. There are numerous compound variations designed for specific applications. When not in stock most custom Viton O-Rings can be made in a few weeks without tooling fees. Viton O-rings have an extremely wide temperature range -50C to +205/230C (-15F to +400/440F) Low compression set and low gas permeability Terpolymer GLT type for low temperature applications. The guide includes generalized recommended o-ring mateiral uses and non-recommended uses with typical material mechanical properties. Excellent Comp. They include but are not limited to operating conditions, chemical compatibility, sealing pressure, temperature, durometer, size, and cost. FPM (FKM, Viton, Fluorel, Technoflon, Dai-El) resist: For moreinformation aboutFKM/Vitonor other O-ring materials pleasevisit our contact pageor fill the Ask ERIKS form on the upper-right corner. Originally developed by DuPont (under the brand name Viton, now owned by Chemours), FKMs are today also produced by many companies, including: Daikin (Dai-El),[4] 3M (Dyneon),[5] Solvay S.A. (Tecnoflon),[6] HaloPolymer (Elaftor),[7] Gujarat Fluorochemicals (Fluonox),[8] and several Chinese manufacturers. All Rights Reserved. FKM and Viton Material Types: A, B, F, GLT, GFLT, XLT, ULT, ETP, TBR High Temperature Viton Seals and Chemical Resistant Viton Gaskets. Many industries use a combination of Viton and nitrile O-rings to seal systems. With exceptional chemical resistance, Viton offers swell resistance in high octane and oxygenated fuel blends. Amines (Ammonia) FKM (Viton) vs Silicone for O-Rings and Seals - Marco Rubber (This is because biodiesel fuel is unstable and oxidizing. Want to get more information about our products? Over the last years fluorcarbon Viton O-rings have grown major importance in the seal industry and are even considered the most significant single elastomer developed in recent history. As an authorized Parker distributor in addition to standard O-ring materials mentioned above, The Hope Group also offers custom seals that are designed exclusively for your specific application. All Rights Reserved. 832-448-5550 | Hours: 8am - 5pm CST, Monday . Fluorocarbon (FKM) compounds combine high-temperature resistance with excellent chemical resistance. Your message Able to withstand heat up to 450 F, these O-rings maintain a strong seal even when the temperature rises. Many manufacturers default to nitrile O-rings because this material is more affordable, but in doing so, they miss out on the unique advantages Viton brings to the floor. Worlds largest O-ring inventory network. This eliminates incorrect readings or information that may be influenced by outside factors or ambient heat that exist within the project space but do not impact o-ring performance. . They provide additional heat and chemical resistance. Email opt-in Want to get more information about our products? Viton A-type fluoroelastomers offer temperature and chemical resistance. Naples, FL 34110, Ketones (MEK) Global O-Ring and Seal carries a broad inventory of Viton o-rings, in Standard AS568 and metric sizes. If it is subjected to this temperature continuously, it should perform reliably for 1,000 hours. Maximum temperature recommendations are based on long term functional service. Order Viton O-Rings from the worlds largest Viton O-Rings inventory network. Keep reading to find the best O-ring material out of Viton and Teflon (PTFE). Excellent Permeation Resistance, Middle-Fluorine Content Type (B-, GBL-TYPE, 67~68.5% fluorine), High-Fluorine Content Type (F-, GF-TYPE,70% fluorine ), Improving Low-Temperature Flexibility Type (GLT-, GFLT). Worry not! However, although nitrile does not function as well as Viton at extremely high temperatures, it performs better at temperatures as low as 65F. Click a material family row for details and compounds. Below is a quick reference chart to some of the main o-ring materials and their approximate o-ring temperature range amounts: O-Ring Temperature Range in Degrees Fahrenheit (F). (0,175mm). PDF Technical Information - Viton Choosing which Viton product to use for any given application will be determined by the end-use service. Once a high-end and low-end temperature are determined, knowing how much change the material can withstand is the next big step in purchase decisions. Commonly employed in various gasket, o-ring and other rubber sealing solutions, Viton has become a reliable material for automotive seals, transportation fuel applications and aerospace seals, pumps and valves. Analysis and process instruments: separators, diaphragms, cylindrical fittings, hoops, gaskets, etc. Acetone, Skydrol, Ethyl Acetate Chemical Processing Industry Seals (CPI Seals), Chemical Processing Industry O-rings (CPI O-rings), Refrigerant System Seals (Freon O-ring Compatibility, R22 Refrigerant, R134 Refrigerant, R410A Refrigerant, Ammonia O-rings), Aerospace O-rings and Aerospace Rubber Sheets (SAE Compliant O-rings, AMS O-rings, MIL O-rings). - 59 to 120. Fluoroelastomers are referred to generically as FKM polymers per the nomenclature noted in ASTM D1418. Table of Contents When we compare the two, Viton is more temperature resistant but lacks the chemical resistance of Teflon (PTFE). Additionally, you can perform appropriate field tests to ensure the fluid, temperature, pressure, and environmental conditions are compatible with the O-ring of your choice. Home Materials FKM Viton temperature rating. . . For GLT-type, the low temperature can reach as low as -40C. Get information about Viton fluoroelastomers and their important properties. When you compress a Viton seal, it can conform to the shape it is compressed into even after it's removed. Copyright 2023 Marco Rubber and Plastics. There are four major families of Viton fluoroelastomers: A, B, F, and ETP, each with its own unique performance characteristics. High Temperature Resistance O-ring Chemical Resistance Low Out Gassing Chlorine Wet/Dry . USA AS568 Parker O-Ring Size Chart, X-Ring Square Ring Size Charts. O-ring material selection guide. Because of their outstanding performance they find use in a number of sectors, including the following: They are suitable for the production of wearables, due to low wear and discoloration even during prolonged lifetimes in contact with skin oils and frequent exposure to light, while guaranteeing high comfort and stain resistance;[14], The automotive industry represents their main application sector, where constant reach for higher efficiencies push manufacturers towards high-performing materials. In dynamic applications, suitable temperature range is. Terpolymers B-, F-, AL-Type Fluoroelastomers, Extrusion Process Aids That Address Extrusion Issues, The Right Elastomer for Turbocharger Hoses White Paper, Flexibility at low temperature (ability to maintain a seal at low temperature). The shelf life for industrial seals varies among different materials. Vito, Dai-El and Technoflon are brands for FMP polymers. This is a critical stage in development, as every rubber compound carries its own strengths, weaknesses and sealing capabilities. O-rings and seals are used in a wide range of industries to help you tightly seal the connections in pipes, tubes, and other elements of complex hydraulic and pneumatic systems. Low-Temperature Viton/FKM: Why it's Used in the O-ring Industry The performance of fluoroelastomers in aggressive chemicals depends on the nature of the base polymer and the compounding ingredients used for molding the final products (e.g. Viton is a synthetic, high-performance fluoropolymer elastomer (rubber) commonly used in o-rings for rigorous applications. Copyright 2018-2023 Wyatt Seal, Inc. All Rights Reserved. Temperature Range for Viton O-Rings The temperature range is generally -15to 400F. Welcome to the world's largest database of specialty and standard sealing products. Selecting an O-Ring material for a specific application depends on many important criteria including: Service Conditions (media to be sealed, temperature range, pressure/vacuum range, dynamic motion) Design Attributes (component geometry, desired service life, installation considerations, tolerances). High temperature service limits are generally considered to be: - 3,000 hr at 232 C (450 F) - 1,000 hr at 260 C (500 F) - 240 hr at 288 C (550 F) - 48 hr at 316 C (601 F) ColdVitonlow temperature performance is dependent on type, with serviceability as low as -31 C (-24 F) in dynamic seals and -45 C (-49 F) in static seals using Vi. FKM/butyl gloves are highly impermeable to many strong organic solvents that would destroy or permeate commonly used gloves (such as those made with nitriles). It's impervious to mineral oil, ASTM oil No.1 and No.2, non-flammable hydraulic fluids, silicone oil and grease. Categorized under the ASTM D1418 and ISO 1629 designation of FKM (hence, why theyre also referred to as FKM o-rings), Viton O-Rings are preferred because of their high resistance to extreme heat and brutal atmospheric conditions, as well as to oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Viton can resist a wide range of corrosive threats that nitrile cant handle. FKM tubing or lined hoses are commonly recommended in automotive and other transportation fuel applications when high concentrations of biodiesel are required. To answer many of your questions about O-rings, The Hope Group has created an advanced O-ring material selection guide, where we will look at the properties and compatibility as well as the temperature range and hardness of each O-ring material.
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