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O Ring Colour Identification

O rings come in various colours, and it's important to understand what these colours indicate as the o rings you choose will affect your overall process application.  Ultimately, different o ring colours are used to help differentiate between different materials. ...

Spiral Wound Gasket Compressibility and Pressure Ratings

In order to form a reliable seal, spiral wound gaskets do require a certain degree of pressure.   The applied pressure allows the gasket to be compressed tightly between the mating surfaces preventing any leaks from occurring.  Factors such as operating temperature...

Elastomeric Compounds

What is elastomer?  Elastomeric compounds are rubber seals produced using natural rubbers or manufactured by the chemicals industry.  Elastomeric sealing compounds consist of between 50-60% rubber; the remainder of the compound consists of fillers,...

Is there such a thing as the right flange gasket?

We cannot stress enough how important gaskets and seals can be. Gaskets are vital for an application's reliability and integrity, and trust us when we say, choosing the right gasket now can help you avoid costly issues in the future.  Taking a closer look at pipe...

Plastic gaskets, the best alternative to metal

Plastic gaskets and seals are not that uncommon.  In fact, they’re used in many devices due to the longevity and functionality they offer.  Helping to prevent leaks and maintain temperature control, plastic gaskets help equipment and appliances operate to the best of...

Protecting your seals

Dust gets everywhere.  We see it across the surfaces of our homes and even in our workplaces, especially when the light shines through to show it in its full glory!  However, dust that seeps and builds up within engineering equipment can be disastrous.  Causing damage...

Importance of durometer testing

Durometer or shore durometer is a way for industry professionals to measure how hard such things as plastic, rubber, and non-metallic materials genuinely are.  Its focus is to measure on a Shore A or Shore D scale, looking at how robust material is when examining its...

Metal Detectable O Rings

Metal detectable o rings became a necessary must when it was identified that some chemicals, exposure to extreme temperatures, and continuous vibrations could cause failings in standard o rings.  Failings that not only mean a breaking of the seal, but there is also an...

Tips for best o ring maintenance

If o rings are not maintained, leaks can occur, and water and other fluids can enter the appliance or application, and even product in the mix!  If this happens, damage can occur to internal parts and mechanisms, causing deployment failings, potential false readings,...

What you need to know about O Ring Lubricants

Silicone grease and lubricants aren’t just a nice to have for o rings, but they can quite often be a must-have.  However, with so many greases and lubricants to choose from, it can often be a minefield choosing the best ones and the right ones for your o ring and...

Difference Between Gasket and Seal

Difference between Gaskets and SealsIf you want to make a selection out of gasket and seal for your project, then you might be thinking that they are almost the same products. In few ways, they might be same as they perform similar functionality. However, there are some key differences between gasket and seal that you must understand before deciding which item is perfect for your project. Here is a detailed guide to differences between gasket and seal that will make your decision easy:

A gasket is a piece that is placed between two parts to create a perfect joint between two surfaces. Gaskets are noted to fill irregularities and they are manufactured from sheet materials such as fibreglass, neoprene, felt, cork, silicone, rubber, paper, metal, plastic polymer etc.

A seal is a category and a gasket is one of the important types of seal. Apart from the gasket, you can find several others forms of seal such as shaft seals, mechanical seals, valve stem seals, liquid sealants, O-ring seals, rotary seals and many more.

The process of manufacturing seal involves a lot of machining and a specific size seal material. It is referred as an engineered product and designed under special conditions. Seals are also known for showing characteristics which gaskets are failing to offer. This is the reason why seal can provide better functionalities when compared it with the gasket products.

A gasket is referred as a static piece which can be used to close the leakage between two parts which are static and doesn’t show any relative motion. On the other hand, a seal is a dynamic piece that is used to avoid leakage between two parts which show sliding or relative motion. Another essential functionality of seal over gasket is that it doesn’t allow foreign particles like dirt or dust to enter into the joint.

In case the gasket breaks down, you need to replace the existing gasket with the new one. However, when seal breaks down, you need to replace both seals and bearing with the new ones. This is an application where gasket can be quite handy when compared to seal.

Both gasket and seal are used to avoid movement of fluid from one direction to other because of the compressive forces. However, a gasket is a non-moving object and once it is placed in a particular position, it can’t be moved. On the other hand, oil seals can move very quickly from one location to other.

One more fundamental difference between gasket and seal is that gasket is usually made from hard plastic or asbestos material. On the other hand, seals (especially oil seals) are manufactured from the material such as synthetic rubbers.

This is a detail explanation of the difference between gasket and seal. It will definitely provide you with a helpful insight into how the mechanism of both these products works. Understanding subtle differences between both these items are essential for the successful execution of any project. Once you get to know the typical characteristics and unique functionalities of gasket and seal, you can definitely make a right choice of components for your project.

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