In the O-ring industry, another hardness scale is used due to the curved surface of the O-ring cross-section causing problems with accurately reading Shore A. The scale is IRHD (International Rubber Hardness Degrees). The size and shape of the indentor used in IRHD readings is much smaller, thus allowing for more accurate measurements on curved ...

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Performance Differences Between Major Families of Viton™ Fluoroelastomers. Fluid Resistance: % Volume Increase After 168 Hours. Base Resistance: % Loss of Elongation @ Break. Low Temp. Flexibility TR-10, ⁰C (°F) Comp. Set: O-Rings, 70 Hrs @ 200 ⁰C (392 °F) Toluene @ 40 ⁰C. (104 °F)

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The O-Ring Basics chapter of Parker's eHandbook provides an overview of what an O-ring is, how it works, and finally, the benefits over other seals. One very important consideration is the hardness of a rubber material.

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Genuine Viton® O-Rings – Fluorocarbon (FPM, FKM, Viton®) Material. Global O-Ring and Seal carries a deep and broad inventory of Viton® o-rings, in AS568 and metric sizes. Click the button below to check inventory for AS568 and metric Viton® o-rings, or submit the Product Inquiry form if you need a special type or size of Viton® o-ring ...

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Viton® is a specific brand of synthetic rubber and fluoropolymer elastomer that is commonly used to manufacture chemical resistant o-rings, seals, and gaskets. The material is categorized as an FKM material under ASTM D1418 and ISO 1629 standards. Viton® is known for its high density—over 1,800 kg/m 3 —which is significantly higher than ...

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O-Ring Hardness. O-rings are normally available with a hardness rating, as measured by an ASTM type-A durometer, of 70 (the "soft" kind) or more rarely a rating of 90 (the "stiff" kind). The soft O-rings are appropriate for dynamic applications where the O-ring is providing a seal with a constantly moving part, such as inside regulators.

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Viton® A: (vinylidene fluoride and hexafluoropropylene)Viton® A is a family of fluoroelastomer dipolymers, that is they are polymerized from two monomers, vinylidene fluoride (VF2) and hexafluoropropylene (HFP). Viton® A fluoroelastomers are general purpose types that are suited for general molded goods such as o-rings and v-rings, gaskets, and other simple and complex shapes. …

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Also known as Boss O-rings, these Viton® fluoroelastomer O-rings are for use in tube fittings with a straight-thread connection. They meet MIL-R-83248. They resist chemicals such as benzene, butyl alcohol, and ethylene glycol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications.

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Click on the FKM o-rings Shore Hardness above to search for your product. Viton® / FKM O-rings have excellent resistance to high temperatures, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many solvents. FKM is ideal for o rings and cord. Key uses for FKM o-rings. Key uses for FKM o-rings includes seals for aircraft engines and automotive fuel handling systems.

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The hardness of rubber compounds is measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most O-Rings applications. Softer compounds stretch easier and seal better on rough surfaces. Harder compounds offer greater abrasion resistance […]

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of O-rings, gaskets, and diaphragms requiring excellent chemical resistance. Use of Viton ™ F-605C Table 1 compares compounds of Viton™ F-605C with Viton™ F-601C, A-401C, and B-601C. Table 2 lists the performance of Viton™ F-605C relative to Ford Specification M2D401-A8. Safety and Handling Before handling or processing Viton™ F-605C ...

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The regular hardness for FKM (VITON®) O-Rings is 75 & 90 Shore A, However ISG can manufacture it in various hardness between 40 to 90 shore hardness as per customer and application requirements. REQUEST A QUOTE . Other O Rings. NITRILE (NBR) O-RINGS. SILICONE (VMQ) O-RINGS.

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Use our Extrusion Chart to determine if the maximum recommended pressure of an O-ring seal based on your seal hardness and gland clearance. When using a regular round O-ring in a rectangular ... Viton® is a DuPont Dow Elastomers trademark for fluorocarbon elastomer.

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Special Compound: -40°C (-40°F) to +230°C (446°F) Hardness (Shore A): 60 to 95. Features: Viton® has excellent resistance to high temperatures, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many solvents, and therefore used for o rings and cord. Fluorocarbon possesses low gas permeability, low compression set ...

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Seals can measure everywhere from 1 to 99 on the shore hardness scale, however the standard number for most nitrile o-rings is 70 on the Shore A scale (70A). In fact, a majority of the polymers used for seals fall into the 60-90 range on the shore A scale, as they offer …

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FPM-Viton® O-Rings are sealing rings for high temperature applications and/or in contact with agressive chemical products.Among the whole synthetic rubbers, FPM-Viton® is the most resistant to halifatic, aromatic and chlorinated hydrocarbons. Viton® is a Chemours' trademark and is a thermopolymer of hexafluorpropilene, with fluoride of vynilidene, tetrafluoroethylene and etherperfluor ...

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Viton® material properties: heat resistance. Viton® seals are well known for their excellent heat resistance. ERIKS has been testing the heat resistance at 250°C for 70 hours and the test shows perfect results for Tensile Strength Change, Elongation Change and Hardness Change. We make sure your seals have an optimal life span.

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Viton® O-Rings 8 Viton® O-Ring cord 18 Viton® Vulc-O-ring 19 Viton® profiles and rubber moulded products 20 ERIKS Viton® oil seals 21 Viton® sheets 22 ... Hardness IRHD ± 5° DIN 53519 70 70 90 75 90 80 75 Tensile strength Mpa.min. DIN 53504 13 12 14 14 18 11 10,7 ...

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36 This Viton or fluorocarbon 75 durometer (75A) specifications chart will help you determine if these Viton material properties will be compatible with your rubber or O-ring seal application. Viton 75, Viton Properties, Viton Rubber - Mykin Inc

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Viton™ Fluoroelastomers Table 2. Viton ™ A-HV Compared to A-700 and A-500 A-HV A-700 A-500 Viton™ A-HV 97.5 — — Viton™ A-700 — 97.5 — Viton™ A-500 — — 97.5 MT Black (N-990) 30 30 30 Maglite® D 3 3 3 Calcium Hydroxide 6 6 6 Viton™ Curative No. …

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Viton GLT, introduced in 1976, was the first commer-cial fluoroelastomer to use this fluorinated vinyl ether monomer. This polymer provides the same excellent resistance to heat and fluids that is typical of the A types of Viton fluoroelastomer. Viton GFLT, like Viton GLT, exhibits significantly improved low

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Viton® O-Rings. Viton ® o-rings from Marco Rubber offer excellent compatibility with a range of chemicals, oils and resist high temperatures up to 400F. Viton is also known as FKM made of fluoroelastomer one of the most versatile and widely used sealing materials. Marco Rubber stocks all USA standard Viton O-Rings sizes, thousands of metric ...

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on O-ring drive belts and their application will be found in O-Ring Applications, Section III. 1.2 What is an O-Ring Seal? An O-ring seal is used to prevent the loss of a fl uid or gas. The seal assembly consists of an elastomer O-ring and a gland. An O-ring is a circular cross-section ring molded from rubber (Figure 1 …

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Citation: Heidarian J. Field test of high hardness O-rings made from Viton extreme with advanced polymer architecture in pipeline valves containing very sour gas. Int J Petrochem Sci Eng. 2019;4(1):9‒11. DOI: 10.15406/ipcse.2019.04.00097 size O-rings in the field test will be verified which will give an insight

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Technical Handbook O-rings STANDARD ERIKS COMPOUNDS (VULC-O-RINGS) Elastomer Hardness Application Shore A ±5 Silicone 75 75 For extremely high or low temperature range, air, oxygen, dry heat, ozone, hot water FDA red to 302 °F (150 °C), and glycol based brake fluids. Resistant to …

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Viton® O-Ring and seal performance cost benefit makes it the second most popular sealing material. Fluoroelastomer (Viton®, FKM) offers a wide range of resistance to chemicals, oil and heat, with situational service life above 200°C. The outstanding heat stability and excellent resistances are due to the high ratio of fluorine to hydrogen ...

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70 Durometer Hardness, 9" ID, 9-1/2" OD (Pack of 10): Industrial & Scientific,Sterling Seal ORVT447x10 Viton Number-447 Standard O-Ring, Fluoropolymer Elastomer,Online sales cheap of experts,Cheap Bargain,Lower Prices for Everyone,FREE gifts & price promise,Dealighted People Powered Shopping.

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Metric O-Ring Kit, Viton, Black, 75A Durometer, 30-Sizes (Pack of 386 Pieces) 4.5 out of 5 stars. 2. $109.33. $109. . 33 ($0.28/Kit) Get it as soon as Wed, Sep 22. FREE Shipping by Amazon.

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Fluorocarbon O-rings should be considered for use in aircraft, automobile and other mechanical devices requiring maximum resistance to elevated temperatures and to many fluids. FKM (FPM, Viton ®, Fluorel ® ) resist mineral oils and greases, aliphatic, aromatic and also special chlorinated hydrocarbons, petrol, diesel fuels, silicone oils and ...

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O-Rings are available in almost all durometers, with 70 or 90 durometer, the most common in most compounds. Softer sealing materials, with lower hardness readings, will more easily flow into the microfine grooves and imperfections of the mating parts, but softer compounds, like 50 durometer compounds, wear and extrude very quickly.

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