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Threaded Flange

Threaded flanges are probably the most recognisable of all flanges due to their screw thread design that is used to connect it to the pipe. Threaded flanges, also known as screwed flanges (for obvious reasons), require a male and female thread to create a connection...

Slip On Flange

A slip-on flange can also be known as a hubbed flange, which, as the name suggests, has a hub with a very low profile. Why is this important? Because this type of ring type joint gasket has an internal diameter larger than the connecting pipe, allowing you to slide it...

Weld Neck Flange

Also known as tapered hub flanges or high hub flanges, weld neck flanges are a specific type of gasket with a protruding ridge and long neck used to connect pipework and provide you with a high-quality seal. Weld neck flanges, in particular, are a popular choice when...

Nitrile vs Viton® – What is the Difference?

As you start to make a decision about what type of O-rings to purchase for your business, you might wonder what material is the most suitable for your unique needs. Every business operation has different requirements for their O-rings, such as the temperature,...

Aflas vs Viton

When it comes to choosing O ring suppliers in the UK, you’ll find that there are a wide range of materials on offer for you to choose from. Many people find that the options can seem quite overwhelming, with some materials having similar properties but offering...

EPDM Gasket

Both the automotive and construction industries have started to use EPDM gaskets more frequently in recent times. This rubber material is UV light resistant and has many fantastic properties that make this part highly effective for a wide range of processes. Keep...

Metal Gaskets

When comparing gaskets for use within your business processes, you’ll find that these can be made from a variety of materials. Metal gaskets are a very popular option, offering many advantages over other materials. When looking at sealing product options, make sure...

AFLAS o ring

O rings come in many different dimensions, thicknesses, and materials. And it is the various different materials that o rings can be manufactured from that make each o ring unique and suitable for specific applications. In fact, there are hundreds of different types...

O Ring Vulcanization Process

With years of o ring knowledge and experience in o ring vulcanization, we're one of the leading experts in providing the right sealing solution for you. To view our full range, visit our O-ring product page, with a wide selection and something to match every...

What is a Window Seal?

A window seal is something that nearly all of us will have seen in our homes or workplaces and is designed to help make your building more comfortable. Within our range of Sealing Specialist Products, we offer a selection of window seals designed for various...

See our latest catalogue for all the services we offer.

Choosing the correct oil seal application

Choosing the correct oil seal applicationChoosing and using the proper sealing devices within oil and gas applications can be vital when preventing dirt, dust, water, and other debris from potentially getting inside and contaminating products. 

Of course, all rubber materials and seals will provide a range of benefits; however, you will need to consider chemical compatibility, sufficient temperature ranges, pressure ranges, and more. 

At specialistsealingproducts.co.uk, we have a range of o rings and gaskets available to suit various applications across a multitude of sectors.  We work with clients to understand all needs and requirements, providing further information where required. 

Below, you will find a range of o ring materials outlining the properties and benefits so you can make an informed decision for your application.

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Oil seals applications 

Oil seals can also be known as rotary shafts seals, shaft seals, lip seals, elastomeric seals, and more. 

Ultimately, oil seals are devices that help to exclude dust and dirt, etc., while at all times retaining the lubricant in the piece of equipment. 

Oil seal materials 

Nitrile (also known as Buna N) 

The most common and economical material within the sealing industry, Nitrile, is used in many oil applications, the automotive sector for aircraft fuel applications, military and marine applications, and more. 

The main benefits of Nitrile when opting for use as an oil seal includes: 

  • It is petroleum-based oil and fuel resistant 
  • Resistant to silicone greases, water, and hydraulic fluid 
  • It offers a low compression set 
  • Has a high tensile strength 
  • Abrasion-resistant 
  • Can sustain temperature ranges from -40 degrees Fahrenheit to 257 degrees Fahrenheit. 

Viton (Fluorocarbon) 

A synthetic rubber used in gaskets, o rings, lip seals, and other moulded devices, Viton offers sealing properties for a range of oil-based applications.  Viton with high fluorine grades will also produce excellent resistance to swell, especially in oxygenated fuel and high-octane blends. 

In these instances, Viton can be the perfect sealing material for methanol/ethanol-blended gasoline. 

The benefits of Viton include: 

  • Can sustain a temperature range from -13 degrees Fahrenheit to 446 degrees Fahrenheit 
  • It is resistant to high temperatures 
  • Resistant to various chemicals such as transmission fluid, petroleum oils, and gasoline 
  • It can be modified for applications with large chemical exposure and hard vacuums. 

Silicone 

Out of all of the elastomers, silicone offers you the widest range of working temperature ranges.  Renowned for its flexibility and low compression set capabilities, silicone is the optimal choice for o rings and other moulded seals. 

The benefits of silicone include: 

  • It offers a temperature range from -85 degrees Fahrenheit to 400 degrees Fahrenheit 
  • It is ozone, weather, and sun resistant 
  • Phenyl based silicones can perform to -148 degrees Fahrenheit 
  • It is completely flexible (making it great for electrical insulation). 

Fluorosilicone 

An oil seal type that is resistant to oils, fuels, and solvents, fluorosilicone also offers temperature stability.  Primarily found in aerospace fuel applications and automotive fuel emission control, this o ring material is fast becoming popular in more and more oil-based applications across a wide spectrum of industries. 

Benefits include: 

  • A temperature range from 75 degrees Fahrenheit to 400 degrees Fahrenheit 
  • It is resistant to high temperatures 
  • It has good compression set properties 
  • It can withstand exposure to ozone, air, and sun 
  • It is chlorinated and aromatic hydrocarbon resistant. 

Atlas 

Aflas is created from fluoroelastomers (FKM), providing the following benefits: 

  • Temperature range from -10 degrees Celsius to 205 degrees Celsius 
  • Resistant to steam, petroleum oils, amine corrosion inhibitors, and hydrogen sulphide. 

Carboxylate Nitrile 

These oil seals are created from a low-temperature tolerant compound.  Benefits include: 

  • Temperature range from -55 degrees Celsius to 135 degrees Celsius 
  • Resistant to abrasion, water, and petroleum oils 
  • Low temperature tolerant. 

Propylene (fluorinated ethylene) 

This tough, chemically inert polymer has a wide working scope as well as: 

  • A temperature range of -55 degrees Celsius to 205 degrees Celsius 
  • Resistant to the majority of chemicals 
  • Ideal for static and slow intermittent dynamic applications. 

Hydrogenated Nitrile/Highly saturated Nitrile 

This is often the material of choice for the oil industry due to the extensive temperature range the material can sustain.  Benefits include: 

  • Temperature range from -30 degrees Celsius to 170 degrees Celsius 
  • Petroleum oil and sour gas resistant 
  • Resistant to H25 and CO2. 

Polyacrylate 

Offering a much more superior temperature resistance, polyacrylate seals are perfect for applications such as high surface speed oil.  Benefits include: 

  • Temperature range from -20 degrees Celsius to 150 degrees Celsius 
  • Resistant to petroleum oils and Freon. 

Polyurethane 

Typically used in hydraulic high-stress applications where compounds under high pressure are exposed to wear, the benefits of polyurethane seals include: 

  • Temperature range between -15 degrees Celsius to 185 degrees Celsius 
  • Abrasion-resistant 
  • Offers a high degree of strength 
  • Petroleum oils and hydraulic oil resistance. 

Perfluoroelastomer FFKM 

An elastomer that has the broadest resistance to chemicals, elasticity, and a roust sealing strength, FFKM benefits also include: 

  • Temperature range of -50 degrees Celsius to 327 degrees Celsius 
  • Resistant to the vast majority of chemicals. 

To find the right o ring and gasket for your oil-based application, look no further than the o ring suppliers, Specialist Sealing Products.  On hand to provide you with the best information, call a member of our team today on 01535 274 776. 

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