Metric oring seals hardware grainger industrial supply. The data table below is an application guide, and indicates the. When pressed between two mating surfaces, they effectively block the passage of liquids or gases. Xrings are available in the same usa standard sizes as orings. An oring seals through the deformation of the seal material by. As new chemicals and fuels are developed, new technology in viton has led to the development of the viton. The elastomer core made of fkm viton or vmq silicone guarantees an even pretensioning at the sealing point. Please find the most important technical data of these compounds, hereunder. Significant reduction, from a few times107 torrliters sec1 cm2 to a few times 1010 torrliters sec1 cm2, in the outgassing rate of viton o rings can be accomplished by vacuum bakeout at 150200oc for 4 hours. Metric o rings function primarily as gaskets that seal connections between structures like pipes and tubes or within pistons and cylinders. X x x x x x o rings and seals needing oil, additive, acid, and base resistance. Orings are generally made of an elastomeric material, but may be made of other materials such as ptfe or metal. Due to its resistant properties, viton fluorocarbon rubber is a great choice for o ring material.
Iso stainless steel centering ring with viton oring. Xrings are designed for improved slow dynamic application performance. Viton and buna are two of the most commonly used elastomers for sealing applications and for good reason. The seamless casing is composed of fep fluorinated ethylene propylene or pfa perfluoroalkoxycopolymer. As an example, resistance to compression set is an important property for seals in general, and, if this property was considered to be the most important feature for a particular part, then one of the atypes of. Our products can be exposed to a huge variety of chemicals. Orings used in meters or other devices which must be read.
Viton o rings have been used safely for some time in scuba diving by divers using gas blends referred to as. Table 2 lists the performance of viton f605c relative to ford specification m2d401a8. Viton gf and viton etp are much more chemical resistant than the old standby viton a, which has been the backbone of the viton compound line until now. In most cases the o rings are presented from toptobottom and leftto right. O rings are used to block a path which may otherwise allow a liquid or a gas to escape. Both of these rubbers serve as great general purpose sealing options. Provides good chemical resistance to petroleum products and solvents. The teflon encapsulation process requires the joining or fusing of the melt processable fep or pfa encapsulation essential to make the oring homogeneous. Orings are bidirectional seals, circular in shape and cross section. Viewing these two o ring materials at a glance, its easy to see some occasions where the decision of viton vs nitrile o rings will be clear to see. The data given should be used cautiously, and as a guide only.
Viton gf and viton etp are two new super chemical resistant viton compounds developed to solve critical sealing problems. With over half a century of proven performance, viton fluoroelastomer has developed a reputation for outstanding performance in high. Metric o rings are employed in specialized applications and, like the name suggests, are standardized by metric dimensions. Help maintain process purity and integrity when fda compliance is necessary, certain types of viton meet fda requirements for food and pharmaceutical applications.
The viton a is a fluoroelastomer dipolymer comprised of vinylidene fluoride and. Technical handbook orings eriks seals and plastics. Viton vs nitrile o rings which is the right choice. Also know as nitrile rubber and is a synthetic blend of acrylonitrile and. Unlimited v70075 viton 75 durometer, black color pdf. Where governmentally imposed occupational exposure limits which are lower than the ael are in effect, such limits shall take precedence. Systems using viton can tolerate changes in fluids and have more versatility for broader application.
The eriks oring manual is intended as a guide to assist in the selection. Our diecutting department with its express service can supply you with any diecut flat ring, or handcut flat ring if large diameters are required. This handbook deals entirely with elastomeric orings and ptfe encapsulated elastomeric orings. In combination with an skf metalcased radial seal, the v ring reduces wear and extends the service life of the oil seal and bearings.
Identification of the substancemixture and of the companyundertaking. The v ring is a unique allrubber seal for rotary shafts. Email this page download pdf download pdf printable page. Viton freeflow extrusion process aids also improve processing, increase output, and reduce waste. A b c split flange kits sae high pressure series code 62 sae j518 o ring material. Find the right size o rings, quad rings, x rings and square rings for your application. The right combination of xring material and xring groove design will maximize sealing performance life. The o ring is placed into a groove to secure them in place, and then compressed between two surfaces. Oring guide parker hannifln prdifa technolgy division introduction introduction parbak backup rings parbak backup rings prevent extrusion in highpressure applications, help to maintain the lubricant film and thus prolong the service life of orings. Viton o ring, viton cord fkm, fpmfluorocarbon range excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels other solvents. Newman sanitary gasket company has the largest stock of fda compliant o rings in north america ready to serve your requirements whether your needs are small or large.
Parker hannifin corporation o ring division 2360 palumbo drive, lexington, ky 40509 phone. Unlike silicon or viton orings, thermoring seals remove easily without sticking to. Apple o rings are available in a choice of six basic materials, each in a range of optional durometer shore a. Theyre typically made of pliable materials like rubber or highquality ptfe. Safety and handling before handling or processing viton f605c. Trelleborg sealing solutions is a major international developer, manufacturer and supplier of seals, bearings and molded. Injection moulding large quantities compression moulding small series and large sizes machining oring extrusion, oring cutting and subsequent bonding by vulcanization or gluing continuous moulding manufacture of gaskets. Oring information sealing solutions boyd corporation. In cases where o rings overlap, the label has been positioned so that it will identify only one size. When compressed between mating surfaces, an o ring blocks the passage of liquids or gases. Avoid polar solvents, amines, anhydrous ammonia, hydrazine and hot acids. Feppfaencapsulated o rings consist of an elastomer core and a seamlessly closed casing of modified ptfe.
O rings are designed for both static and dynamic applications. An o ring is a solidrubber seal shaped like a doughnut or torus. Every care has been taken to assure that the o ring illustrations on these pages are as accurate as possible. After the invention of the oring in the early 40s of the last century, eriks was one of the pioneers to bring this product to the world market. Black the viton a is a fluoroelastomer dipolymer comprised of vinylidene fluoride and hexafluropropylene. Viton fluoroelastomer products are outlined in very general terms in table 3, below. A properly designed o ring groove allows the o ring to be squeezed diametrically outofround even before the application of pressure. These seals offer excellent compression set resistance, and both options are designed to resist most oils and lubricants, especially petroleum based lubricants. Viton performs well in a wide range of aggressive fluid environments. By squeezing the o ring, there is no more clearance for it to move and it blocks the pathway of the liquid or gas you are trying to seal in place.
With over half a century of proven performance, viton fluoroelastomer has developed a reputation for outstanding performance in high temperature and extremely corrosive environments. Iso 3601 metric size o rings quick reference chart. Bunan rings with durometer 70 shore a can offer hood physical properties and provide excellent resistance to petroleum products. V ring shaft seals utilize centrifugal slinger action to provide effective protection against dry and wet contamination. Viton fluoroelastomer has expanded to many other industries, especially in the automotive, fluid power, appliance, and chemical fields. Orings combine a low temperature resistance silicone with a very good. Twa total dust ael is duponts acceptable exposure limit. Use of viton f605c table 1 compares compounds of viton f605c with viton f601c, a401c, and b601c. Parker o ring handbook 5700 handbook introduction 12 seals build with the best.
Developed in the 1960s by forsheda ab, it has been used successfully by oems and on the replacement market world wide in a broad range of applications. The vring is the perfect seal to prevent the ingress of dirt. Get durable bunan and viton o rings from grainger to help tightly seal connections in a wide range of industrial applications. Parco o rings are available in a wide range of standard and nonstandard sizes that are suitable for nearly all sealing applications. O rings made of viton are typically colorcoded as black, but new gaskets, seals and o rings should be green fkm or black fkm, but with a green mark on the outer edge. Products made with viton fluoroelastomers retain their flexibility, shape, and seal when exposed to chemicals and high temperatures.
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