NEW

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...

Common Reasons Why O-Ring Fails

Industrial O-rings common failureIntroduction

O-ring failure can have expensive and severe consequences. If you want to ensure optimal performance of your design under all possible circumstances, it is important that you acquaint yourself with the most common reasons for O-ring failure.

Common Failures

Abrasion

Abrasion is an O-ring failure that is common in dynamic applications. This is due to repetitive contact and, ultimately, friction between the O-ring surface and housing groove. There are mainly two reasons for abrasion, namely insufficient lubrication and an improper surface finish. Abrasion can be detected by looking at the sliding contact faces of the O-ring. If it has a grazed surface, you may be running the risk of abrasion.

Chemical Attack

If the O-ring’s main elastomer is incompatible with the application media, the O-ring may fail due to a chemical attack. Chemical attacks can be worsened by extreme temperatures and if the O-ring is under stress. A chemical attack on the O-ring can be detected by looking for blisters, cracking, and discolouration on the in the O-ring.

Chemical Swell

When the O-ring’s elastomer allows ingress of chemical media, the O-ring can swell and lose its sealing ability. It can also lose its tensile strength. Like a chemical attack, this failure is due to lacking compatibility with the chemical media. Monitor the size of the O-ring and compare its current size to its original size to determine if there is chemical swelling.

Compression Set

This is when the circular cross-section of the O-ring becomes less circular and flattened on the sides to increase in temperature. If the O-ring’s elastomer is not compatible with extreme fluctuations in temperature, it can diminish the O-ring’s sealing ability as it doesn’t revert to its original shape when the temperature goes back to normal.

Installation Damage

O-rings that are damaged to careless or improper installation can result in failure. Incorrect sizing, cuts on the surface of the elastomer, dirt, or twisted O-ring, can result in lacking sealing ability. Installation damage can be caused in many different ways, and it can also happen if the O-ring is the correct size for the design.

Solution

There is no one solution for common O-ring failures. Failure may be due to many different circumstances and conditions. There are, however, overlapping causes of O-ring shortcomings that one should take note of.

Incompatibility with chemical media can cause an entire array of common-ring failures. If the material or elastomer of the O-ring is not compatible with the chemical media, it can reduce the O-ring’s sealing integrity. The chemical media or operating fluid may also ingress into the elastomer. To prevent this, make sure that chemical media and elastomer are compatible with each other.

The O-ring’s ability to cope with extreme temperatures is also important to prevent a number of common O-ring failures. If the sealing properties of an O-ring’s elastomer change under different temperatures are can also lead to failure. This is especially important when it comes to aircraft or vehicles that travel or flies in extreme circumstances.

Find Out More Here!

Previous

Next

Contact Us
close slider