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Why Should You Invest in Quality Seals?

While industrial seals might seem like something you could save a little money on, this is one part that we don’t recommend cutting costs on. A quality seal will offer many benefits to your business and operations, so it’s worth taking the time to find a solution...

All you need to know about Neoprene O rings

Popular in the refrigeration industry, neoprene o rings are also growing in popularity across a wide range of other sectors due to their incredible resistance to hazardous materials. Also known as chloroquine o rings, these o rings provide excellent resistance to...

Why all sealants are not the same

It's important to understand just how critical it is to use the correct type of sealant. It's especially the case when working with heavy machinery or any industrial situation. You don't want to have to worry about whether your sealing products are working correctly...

How to understand O-rings and their design

O-Rings are a critical component for the proper sealing of specific pipes. They have to sit within a specified groove, which can vary based on the hardware used. That's why it's important to note the various types of o-ring groove design to understand better what kind...

The importance of gasket thickness

Choosing the right gasket material for specific applications is vital. However, gasket thickness is also a feature that must not be overlooked in the decision-making process. Choosing the right gasket thickness can help when you’re experiencing challenges with...

How Temperature Impacts Gasket Performance

When using a spiral wound gasket, there are many things you need to keep in mind. The most common issue we hear people discuss regarding gasket performance issues at high temperatures. If you are using a gasket for the first time at a new temperature and notice it...

How Thick Should Gasket Paper Be?

When creating gaskets, one of the most common questions we receive is regarding gasket paper thickness. You’ll find there are various options on the market, which come in different sizes and thicknesses. Today we’re going to discover what gasket paper is and how you...

O-Rings for the Beer Industry

O-rings offer a wide range of applications, and many people aren’t aware of just how versatile an o-ring can be. When working with o-ring suppliers in the UK, you’ll soon find out that we supply these to a range of businesses, including to breweries. Today we’re going...

Gasket Safety

Gaskets and seals are vital components for applications requiring a solid seal, helping prevent leaks and stop gases and other chemicals from escaping.  However, over time, and due to the fluctuating temperatures, compression sets, and exposure to chemicals, seals do...

Is fluorosilicone rubber o rings a sustainable choice?

Fluorosilicone rubber, also known as FVQM or MFQ, contains 23-28% fluorine and has nearly the same physical and mechanical properties as standard silicone rubber as matches on par with their flexibility at low temperatures.  However, due to its fluorine...

O-Ring: Materials and Usage

Rubber O-Rings Industrial use. on white background.What is an O-ring?

There are many definitions of O-rings. In essence, it is a seal that has the form of a ring with a circular cross-section. O-rings are typically made of rubber and are primarily used for sealing purposes in swivelling joints.

There are many different types of O-rings, and how they look and what they are made of depends on their application. O-rings play an integral part in modern-day engineering and O-ring failure have been known to have disastrous consequences.

When it comes to engineering, nothing beats the importance of proper sealing and isolation. Your selection of O-rings can have a significant influence on the success of your prototype, vehicle or design. O-rings also play a pivotal role in ensuring durability, performance, and minimalisation of the risk of failure. Let’s take a look at some of the things that you should consider when selecting an O-ring.

Material

The material that you choose has to be compatible with other factors and applications of your design. If the material of your O-ring design is not compatible with the rest of your design, it can be detrimental to the functionality and overall effectiveness.

The O-ring material should be compatible with the operating fluid. If not, the operating fluid can cause the O-ring to swell and deteriorate, diminishing it’s sealing ability and increase the risk of failure.

The O-ring material should also be able to withstand the fluctuations in temperature. Temperatures that are too cold can harden the O-ring, causing it to snap. If the O-ring is made from the wrong materials, temperatures that are too high can also reduce the O-ring’s sealing abilities.

If the overall design is applied in a manner that changes the pressure around the O-ring, its material should enable the O-ring to maintain its sealing abilities nonetheless.

Seal Grove Surface

The seal groove surface of the O-ring housing is particularly important to ensure maximum performance and effectiveness of the overall design. The surface is too rough; there can be microscopic openings between the O-ring itself and the surface of the seal housing. This reduces the O-ring’s ability to seal the surface effectively. A sealing house surface that is too smooth, on the other hand, can cause an aqua-plane effect and also diminishes the O-ring’s sealing ability. It is, therefore, clear that the surface roughness should be somewhere in between.

Generally speaking, a seal groove surface of 16 rms will ensure optimal sealing for gases where a sealing grove surface of 32 rms works best for fluids. If the objective is dynamic applications, make sure that the O-ring’s surface housing has an rms of anything between 6 to 18.

Conclusion

Before selecting an O-ring for your application, it is important to ensure that you understand the sealing requirements of your design. Keep all the circumstances of the design’s functionality in mind, including temperature and pressure. Make sure that the O-ring material is compatible with the operating fluid and that the roughness of the housing surface allows for optimal sealing.

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