Oil Seal Types

We can't emphasise enough how important it is to choose the right oil seal to keep your application functioning, and functioning well. Not every oil seal is the same. Manufactured using various material elastomers and to suit a range of dimensions, seals are as unique...

Rotary Shaft Seals

Rotary shaft seals are the more formal name for this type of seal; however, we also know them as oil, grease, fluid, or dirt seals. Whatever you call them however, they all perform the same function – to close the space between stationary and moving parts in machinery...

Silicone O Rings

As a leading O ring UK manufacturer and supplier of high quality seals and gaskets, offering a wide range of types, sizes, and sealing solutions that suit various applications across all industries, we work hard to ensure you get the best sealing solution for your...

Viton O Rings

Viton o rings bring with them numerous advantages, especially for applications within high-tech and critical industries. Providing great resistance to wide fluctuations in temperature and chemical ranges as well as being wholly suitable for pressure applications,...

How are O Rings made?

O rings are one of the most common components within manufacturing. Suitable for a range of applications and found in numerous everyday appliances, o rings are a vital piece of equipment to provide the perfect sealing solution. Ring-shaped seals, o rings are made up...

Pipe Gasket

A pipe gasket is designed to seal a space between two sections of a pipe. Many pipes have flanged surfaces where they join, which means it isn’t smooth or flat to make this connection secure. In order to overcome this flared area, a flange gasket will be used to...

Spiral Wound Graphite Fill Gasket

With so many different gasket options on offer today, we know it can be difficult deciding which ones have the right features for your needs. Each type of gasket is suitable for a variety of applications or uses, and the material that your gasket is made from will...

Gasket Cutting

Using the latest technology and equipment, gasket cutting today offers incredible precision. Achieving customised gaskets that meet your sealing requirements, today we’re now seeing various gasket cutting techniques used as we move away from the standard dimensions...

What are Bonded Seals?

As you start to compare the seals on offer on our site, you’ll find that there are many different options for a variety of uses. Bonded seals are a great solution for some applications, offering many benefits over other types of seals. Specialist Sealing Products...

Rubber Gasket Material

Rubber gaskets are a very valuable solution for a variety of uses, however, you’ll want to make sure you always choose the right option for your unique business operations. There are a variety of rubber gasket materials on offer, which provide you with an effective...

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What are Encapsulated O-Rings?

What are Encapsulated O-Rings

When discussing the various o-ring options on offer, you might hear encapsulated o rings being discussed. This type of o-ring offers many advantages to manufacturers, but you’ll want to ensure you understand its proper application before purchasing encapsulated o-rings. Keep reading as we discover everything you need to know about this type of o-ring, which is also commonly referred to as an elastic o-ring.

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What is an Encapsulated O-Ring? 

An encapsulated o ring is slightly different to a typical o-ring, as it’s created with an elastomer stimulating core. It has a seamless shield that is made from Fluorinated Ethylene Propylene or Perfluoroalkoxy, both of which are chemical-resistant materials. They help to prevent corrosive fluids and gasses from getting into the elastomer during any type of application. Although it is often known as an elastic o-ring, it’s important to note that encapsulated o-rings aren’t elastomers. They are made from plastic but still offer the same characteristics as rubber and elastomers. The shield is hard, but the core elastomer provides the memory of the o-ring when it’s placed under pressure. It, therefore, offers unique properties and advantages when compared to typical o-rings, which is why more businesses are opting to use this solution.

What Does an Encapsulated O-Ring Look Like? 

The common profile of an encapsulated o-ring will be a circular cross-section, however, you can request oval, square, or rectangular shapes ones. These will naturally be more expensive, which is why they are less commonly used. A lot of tools and time are needed for this option, so it is a complex solution which only specialists in the field will offer. Encapsulated o-rings can be offered in a variety of thicknesses, and these products are offered tailored to a client’s needs. Most companies will offer a variety of sizes as standard, which are the most popular dimensions based on their experience and clients. This will help you find a solution quickly when needed and offer a more cost-effective solution for every client.

The minimum inner diameter will depend on the thickness of the o-ring. However, there’s no maximum size when it comes to the inner diameter. Some o-rings on offer are slightly compressible, which will help to fit the space they are getting used in. As you can see, they offer many design benefits over typical o-rings, which is why we recommend considering this type of o-ring for certain projects.

The Advantages of Encapsulated O-Rings 

There are many great benefits of investing in encapsulated o rings, including low contamination and low penetrability. The ratio of friction is between just 0.1 and 0.2, which is much lower than other options. They are compliant with many industry regulations, so you’ll have a safe and secure solution to use on a regular basis. Encapsulated o-rings can be used at a wide range of temperatures, and they are resistant to nearly all media. We find they are particularly useful for businesses operating within the chemical processing, food, and pharmaceutical industries. For these businesses, they will be a cost-effective solution that offers high-performance levels for many critical parts of your business.

When to Avoid Using Encapsulated O-Rings 

Of course, there are times in which encapsulated o-rings should be avoided. Firstly, they aren’t suitable for use under high pressure, as they are not designed for this application. Dynamic applications are also best avoided for safety reasons. When you are placing them in contact with abrasive media, you will find that encapsulated o-rings aren’t an effective solution. Finally, if your housing design needs excessive stretch, you’ll want to look for a solution that’s more flexible for your requirements.

Should You Use FEP or PFA? 

When choosing encapsulated o-rings, you’ll then have the choice between FEP and PFA. In general, you’ll find that PFA is best for use at high temperatures, as it is resistant to temperatures over 200°C. It offers all the same benefits as FEP, but it will also offer a longer service life. It has great mechanical and temperature resistance and is less likely to crack under stress or pressure. Of course, we recommend comparing prices as well, as this is often the biggest factor for companies. Delivery time is another consideration, as you may want to opt for the one that we have in stock at the time for any urgent projects.

Encapsulated o-rings offer a wide range of benefits to users, and you’ll find them to be a reliable solution for a wide range of applications. You’ll want to ensure you plan ahead for your projects to ensure you have this item in stock to avoid any issues during the process. Contact our team today to discuss your encapsulated o-ring order. We’ll be happy to answer any questions you have and find the best solutions for your business needs this year. 

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