re are any number of high-perfor

2021/05/21

There are any number of high-performance materials used in the production of o-rings, ranging from nitrile and silicone rubber to fluorocarbons, metals and more. Due to its shock-absorbing properties and chemical resistance, butyl is also used in hydraulics applicationsespecially those that use synthetic lubricants. assortment pressure ring They are particularly valuable in aircraft engines and automotive fuel handling systems because they resist swell in high-octane and oxygenated fuels. Available in standard blue 70 durometer or custom colors.

Need a compound not shown here or not sure what is best for your application. If you need additional help or require custom o-ring specifications, dont hesitate to contact us and wed be happy to help.

We take care of any functional requirements, gland limitations, installation improvements, etc. However, as a rough guide to o-ring temperature rating and use limits, some of the more popular materials on sale generally operate within the following sorts of temperature ranges: Hydrogenated nitrile: anywhere from -45 C to 150 C, Polyacrylate: anywhere from -25 C to 175 C, Ethylene-propylene: anywhere from -50 C to 135 C, Chloroprene: anywhere from -40 C to 120 C, Butyl (petroleum compound): anywhere from -55 C to 205 C, Fluorosilicone: anywhere from -60 C to 205 C, Fluorocarbon: anywhere from -25 C to 205 C. High-pressure resistance is a common requirement of industrial o-rings, along with reliable performance in high temperature and dynamic environments.

Aflas is another elastomer that offers a combination of chemical, thermal, and electrical resistance properties, resisting acids, bases, and heat up to 446F. In general, depending on a number of factors including grade of o-ring and precise application, the Viton seal working temperature range is held to be between -26 C and +205 C, although they can withstand higher temperatures for short periods.

silicone rubber sealing resistant flexible pressure fuel heat soft clear ring

Well respond to your request within 1 business day. On the whole, static o-rings are created from less robust and hard-wearing materials than their dynamic equivalents.

Backup ring materials include Buna (NBR), Viton (FKM), PTFE, PEEK, and Nylon.

Phosphate ester hydraulic fluids, brake fluids and halogenated hydrocarbons are damaging to nitrile, and its not the best choice for high temperature or pressure demands, The nitrile o-ring temperature range is usually anywhere from -50 C to 120 C. Rubber o-rings are perhaps the most common type, serving an enormous array of purposes and functions in less specific or demanding applications than some of the higher-tech variants seen in heavy industrial environments. Polyurethane should not be exposed to strong acids, bases, or brake fluids, limiting some of its potential transportation applications despite the materials capacity to carry heavy loads. Global O-Ring and Seal, LLC is a master distributor of O-Rings, Backup Rings, X-Rings, Cord Stock, and related seals, servicing industrial distributors worldwide.

We offer a wide variety of high-pressure O-ring materials. Hydrogenated Nitrile HNBR O-Rings Material, O-Ring Rubber Chemical Compatibility Guide. Need help, contact an application engineer for assistance in selecting the best high pressure o-ring materials or product selection or groove design assistance from our expert team.

Silicones have good broad spectrum chemical resistance and are physiologically neutral making them ideal for many food, pharma, and medical applications.

For more information on o-ring groove design, click here. Despite its favorable chemical resistance characteristics, nitrile should not be exposed to ethers, esters, ketones, or chlorinated hydrocarbons.

Most elastomeric seals are designed to operate to about 1,500 PSI. PTFE seals are often used in food, pharmaceutical, and medical industries.

High tensile strength and thermal resistance enhance its utility in the aerospace and automotive industries. This material is ideal for static sealing applications and is widely used by the aerospace industry.

View site-wide list of registered trademarks. The trade-off is that PTFE is difficult to install, having very limited elastic memory and poor tear resistance. Some materials perform well in chemical or high heat applications where others may deteriorate under harsh operating conditions. However, the best choice will always depend on the consideration of other environmental or application factors. There are colored and translucent materials as well as internally lubricated materials to meet special needs. Cast polyurethane stands out for its abrasion resistance, tensile strength, and shock absorption, though it also boasts resistance to many chemicals, including ozone, oils, and greases. Our Office is Closed for the Weekend. Specialty FKM types and formulations are available for improved low temperature and chemical resistance as well as colors, durometer hardness, food and medical grade, high pressure and explosive decompression resistance. Some of the materials used in the manufacture of o-rings have of course become more high-tech over time, but essentially o-rings remain a beautifully straightforward and reliable solution to a problem that was first brought up more than a century ago. Viton o-rings are a popular alternative to the widely-used nitrile seals. 14450 John F Kennedy Blvd Metallic o-rings and metal o-ring seals are often found where an extra hard-wearing gasket is required in high temperature or high-pressure components, in heavy machinery and industrial sectors.

After Hours Service. However, fluorosilicone is not a good choice for dynamic sealing of any kind due to its low strength and limited abrasion-resistance.. Not recommended for dynamic service or for use with concentrated aromatic solvents, amines, esters, and ketones.

Local: 832-448-5550 As such, theyre considered an extreme performance o-ring sealing solution, designed to offer optimal reliability under, especially tough conditions.

Primary considerations for O-ring material selection include chemical compatibility, applicationtemperature compatibility, sealing pressure,durometer, size and cost. There should be a material fit for your application. Nitrile rubber o-rings are a tough and fairly robust type of seal that holds up well in physically demanding roles. Ethylene propylene is often used outdoors where weather resistance is a concern, as well as in automotive cooling and brake systems.

HNBR compounds also have excellent abrasion, wear, and compression set resistance.

Like nitrile, hydrogenated nitrile has excellent thermal properties, sealing at temperatures from -85F to 350F. This is less of a concern for o-rings used in static applications, as the only stress force theyll be under is usually compression (to which they tend to be fairly resilient). 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. Available in standard rust/orange 70 durometer, with custom colors available.

Although silicone is well-known for medical-grade and FDA-compliant sealing applications, silicone rubber is also a solid choice for extreme temperature static sealing due to its heat and cold resistance.

Aflas materials can have limited compression set resistance and should not be used with aromatic fuels, ketones, or chlorinated hydrocarbons. An approved food-grade o-ring must only consist of the material(s) declared and approved as food safety compliant in the country of manufacture/sale. Available in standard back or custom colors. Even the specific type of oils or chemicals being used in your application determine O-ring material compatibility. Typical operating ratings on most UK silicone o-ring kits and products run anywhere from about -50 c to 200 c. Fluorocarbon o-rings are a subgroup of elastomer seals usually known as Viton, as detailed in a separate section above.

Nitrile materials can be formulated to enhance specific physical and chemical resistances like color, durometer hardness, internal lubrication, steam, ozone, high and low temperature performance.

These characteristics make it one of the most versatile elastomers for O-ring seals. The more internal pressure is applied to this join, the more the o-ring is distorted inside its groove, which can improve its overall sealing force up to a point - but beyond a certain pressure, or under more dynamic workloads, this can cause failure of the seal. If you have any questions, please fill out the form below and a Rocket Seals technical expert will get in touch with you shortly. At 50% or more it becomes a high nitrile product, intended for use in hydrocarbon applications, while below 18% is considered low nitrile for use in very low-temperature systems. Ace Seal provides O-rings in standard and metric sizes and different material options to meet your application requirements. Silicone materials have excellent thermal stability in extreme low and high temperature environments. This makes them ideal for demanding industries and environments such as oil and gas refineries, chemical processing, or any other scenario where a high-temperature seal is required, such as performance transport applications like turbo engines and aerospace engineering. This means theres a fairly uniform mechanical stress placed on all contacting surfaces of an o-ring.

The correct material selection is key when purchasing an O-ring for high pressure applications. To achieve food grade approval, an o-ring manufacturer must also take into account extractable ingredients/compounds if the seal is to be used in direct contact with aqueous, acidic or fatty foods and drinks. Fluorosilicones have excellent low temperature resistance and are often used in demanding aerospace and automotive applications such as fuel and exhaust systems. For more detail on all types of O-ring materials and designated temperature ranges, feel free to contact our expert support team any time - theyll be glad to offer further advice and assistance on specific high-temperature seals, materials and applications.

We provide O-rings for industries ranging from oil and gas to aerospace and offer both standard and custom options. Use one of the links below to view our top ranges of O-rings on the RS website, Freudenberg Sealing Technologies Simrit Seals, For general enquiries: 03457 201201 (standard rate line), Raspberry Pi, Arduino & Development Tools, Engineering Materials & Industrial Hardware, Development Tools & Single Board Computers, Industrial Push Buttons, Pilot Lights & Control Stations, Pneumatic Counters, Logic Controllers & Timers, Electronics Cleaners & Protective Coatings, Electronics Components, Power & Connectors, Everything You Need To Know About O-Rings And Seals.

Depending on the specific situation, you may also look at abrasion, tear, ozone, electrical resistance properties. An engine o-ring, especially one used in high performance or turbo engines, is a good example of a product that has to be rugged enough in design and material construction to handle various challenging requirements of temperature, pressure and chemical compatibility. Like nitrile, it is popular in oil, aerospace, and general industrial environments. They are the first choice for clean applications and are particularly popular in the semiconductor industry. The materials primary limitation is a susceptibility to hydrocarbons.

Ultimate chemical, steam, acid, amines, solvents, compresion set resistance, wide range of chemical resistance, AED rapid decompression NACE TM0297-2002, Lower temperature resistance, AED explosive decompression resistance, providing the best overall temp range and Chemical resistance.

A synthetic rubber/elastomer providing excellent heat, oil, acid, weather and flame resistance.

Polyurethane is a type of thermoplastic elastomer that can be formulated in a variety of ways, each yielding very different mechanical properties and resistances.

Resistant to: Refrigerants (freons, ammonia), high aniline point petroleum oils, mild acids, and silicate ester lubricants, Not recommended for: Phosphate ester fluids and ketones. Predictive Maintenance: Avoiding Unplanned Downtime with Industrial IoT, 2022, The Hope Group. Without extensive experience in sealing, it can be difficult to determine which elastomer is right for a given project. As a result, our clients return to us again and again for guidance and reliable elastomer products. allorings.com PO Box 1150 Seabrook, NH 03874 For more advice and information on suitable products to use as engine o-rings, feel free to contact our customer service team through the support pages on our site. Terms & Conditions. O-Rings can withstand higher pressures in static applications compared to dynamic applications. Like their fellow elastomers, theyre widely used in many industries where theyre prized for excellent abrasion and tear resistance, suitability for use with some solvents, and for being considerably cheaper than fluoroelastomers. A type of saturated rubber material that offers good stability in extreme temperatures and resists fuels, oils, solvents, chemicals, and more. Houston TX, 77032 Cycling pressure can cause an o-ring to be repeatedly pushed against the clearance gap causing damage and sealing failures. Contact usfor more information about our O-ring materials orrequest a quoteon your custom application today.

In the UK, this applies to natural and synthetic rubbers, elastomers and polymers. O-rings function on the principle that even pressure placed on the (more or less incompressible) o-ring material creates predictable deformation patterns around the perimeter of the gasket in its groove. Resistance to petroleum oils, acids, silicone fluids is good, and Viton is highly resistant to oxidation, UV damage, fungus, ozone, oils, and petroleum-based lubricants. Common applications include fuel tanks, automotive and aerospace applications.

For use in an engine, an oil o-ring has to be created specifically from compatible hybrid materials that allow it to maintain crucial o-ring properties (flexibility, incompressibility) while offering more robust resistance to heat, pressure, o-ring leaking and chemical attack than a standard elastomer typically could. Theyre commonly used due to the inherent resilience of stainless steel o-rings, which means seals can spring back promptly once pressure is reduced.

Some common food-safe o-ring materials include EPDM, fluorocarbon, nitrile, neoprene and silicone.

In very basic terms, o-ring seals work by sitting in a groove or channel between two surfaces/components that are going to be mated or pushed together. Many basic rubbers and polymers arent suitable for use with oils, fuels or solvent-based compounds. Compare to Kalrez 0040, Higher temperature AED, resistance to Sour gas and associated chemicals and steam Compare to Kalrez 7090, Kalrez 3018 and Chemraz 510. Lets look at some of them below: Resistant to: Water, Petroleum Oils & Fluids, and Hydraulic Fluids, Not recommended for:Phosphate ester base hydraulic fluids, automotive brake fluids, ketones, strong acids, ozone, freons, halogenatedhydrocarbons, and methanol, Temperature Range: -40 to +250F, although thats an average for the lower and upper tolerances for the various nitrile butadiene rubber (NBR) compounds manufactured by Parker. Neoprene O-rings have a relatively low compression set, good resilience, abrasion, and are flex cracking resistant.

Having both thermal and chemical resistance properties, fluorosilicone is also becoming popular for general-purpose O-rings, especially for outdoor applications. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); [] to select a sealing material that stands up to the demands of media flowing through the valve. At higher pressures and larger clearance gaps, the o-ring material must have enough strength to resist extruding into the clearance gap. Welcome to the world's largest database of specialty and standard sealing products. Perfluoroelastomers (FFKM) are an extension of the Fluorocarbon FKM elastomers extending the compatibilities of the FKM while at the same time extending the upper temperature limits of the materials while compromising the lower temp limits. Compared to cast polyurethane, it has a lower tensile strength and weakens at high temperatures., Kalrez features exceptional chemical resistance, and theres virtually no industrial chemical that will cause it to degrade (although Kalrez O-rings will swell in the presence of certain solvents).

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. The trade-off is that PTFE is, Arizona Sealing Devices, Inc. has extensive experience with all of these elastomers, and we take pride in matching our clients to the materials that will suit them best over time. Learn more about our various types of O-ring material below or contact us to discuss customization options. When an o-ring compound contains the standard 32% nitrile content, it is said to be made from medium nitrile.

Their name, as implied, simply refers to a classic doughnut or torus shape, and they exist purely to create a better, more leak-proof seal between two other components, with the aim usually being to prevent the unwanted escape of gases or liquids.

The o-ring manufacturing process is relatively straightforward, and the specifics of any given o-ring design and production run generally take into account required quality, quantity, application environment, cost-effectiveness, chemical and pressure compatibility, longevity and lubrication requirements. Contact Us | Return Policy | Privacy Policy | Site Map, 1998-2022 Marco Rubber & Plastics, LLC - allorings.com All rights reserved. Did you know we are integrated with the world's largest o-ring inventory and production network? Despite the abovementioned characteristics, experts do not recommend silicone O-rings for dynamic applications.

Not recommended for use with UV, ozone, steam, harsh fuels or chemicals. Finding the correct nitrile o-ring for the job will depend on getting the right grade to stand up to the task at hand.

70 durometer. However, ethylene propylene has largely supplanted butyl due to its enhanced durability. Silicone rubber also holds up to weather, ozone, and acid exposure, although its low abrasion resistance limits its utility to static sealing applications.

The only drawback to a high durometer is the decreased squeeze of the o-ring. Fluorocarbon compounds are widely used in chemical, aerospace, and industrial applications.

The experts at Arizona Sealing can help.

Since 1980, our solutions have delivered reliable, long-lasting success for customers worldwide.

Its important to get the balance right between o-ring material, size and working environment in order to fulfil the role you need it to perform. All of the above elastomer families as well as those specials not listed are available in many specialty formulations.

Named for their standard circular shape, O-rings are versatile elastomer gaskets that form a tight seal between two mechanical components. Most popular elastomer O-ring material.

Due to many applications, there is also a wide variety of O-ring material choices available.

Common elastomers for use in aerospace-type applications include nitriles, ethylene-propylene, fluorosilicones and more. Not recommended for use with steam, amines, or polar solvents. Temperature Range: Standards -15F to +400F, but some Parker FKM Viton compounds can tolerate temperatures down to 65F and up to +450F.