NEW

Flange Gasket materials – What you need to know

Getting the most out of flange gasket materials and ensuring the performance of the gasket is not affected when you come to use it, means several things must be taken into consideration.  For example, factors such as their design, how they’re manufactured, installed,...

Spiral Wound Gaskets and Sheet Gaskets

Gaskets come in a range of different shapes and sizes.  All are offering similar functionality; gaskets are produced using a range of different materials to suit a range and a variety of environmental factors, industrial uses, and product requirements.  When it comes...

Benefits of Kammprofile Gaskets

Used to prevent leakage, gaskets are constructed to fit between a range of different sizes and types of surfaces in order to provide the perfect seal.  Typically used in pipes and heat exchangers, gaskets are widely used as industrial sealants.  Kammprofile gaskets,...

Purpose of a Kammprofile Gasket

The ultimate purpose of a gasket is to stop leaks while being able to deal with varying levels of compression.  When it comes to Kammprofile gaskets, these are ideal for standard pipeline and heat exchanger applications.  As due to their grooved metalcore, with a...

Are your gaskets completely compliant?

In industries where gaskets are not just important but essential, there are numerous challenges to be faced and considerations to take on board.  This is especially true when it comes to making sure this “essential” element is also compliant.  With the implementation...

Everything you need to know about Manway Gaskets

When it comes to manway gaskets, we want to keep things simple, introducing them as the small sealing ring found in hatches/openings that are constructed for large tanks. Openings which give people access to the inside of the aforementioned tanks and vessels. The...

Why Colour Matters When Choosing Gaskets?

Gasket manufacturers have turned to colour coding gaskets to make the selection and categorisation of the product more accessible.   It is possible to identify the winding and filler materials that were used for fabrication by the colouring of the outer top side of...

Choosing the Perfect Gasket for Your Needs

The perfect gasket choice and fit is an essential component of engines, appliances, and industrial machinery projects. They are a fundamental part when engineering anything from power tools to oil drills. A high-quality manufacturer of gaskets and seals will use only...

How Do You Recognise a Quality Gasket?

A gasket is a very simple item that is reasonably inexpensive. Considering how gaskets work, you may be facing a costly bill should a gasket fail. Choosing a quality gasket from Specialist Sealing Products helps to create a seal that will last until well after the...

5 Common Gasket Failures

When it comes to manway gaskets, we want to keep things simple, introducing them as the small sealing ring found in hatches/openings that are constructed for large tanks. Openings which give people access to the inside of the aforementioned tanks and vessels. The...

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 circumstance, 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 it’s sealing ability. It can also lose its tensile strength. Like 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 flatten on the sides to increases 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 of 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 not 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 changes 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.

Previous

Next

Callback Request