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Threaded Flange

Threaded flanges are probably the most recognisable of all flanges due to their screw thread design that is used to connect it to the pipe. Threaded flanges, also known as screwed flanges (for obvious reasons), require a male and female thread to create a connection...

Slip On Flange

A slip-on flange can also be known as a hubbed flange, which, as the name suggests, has a hub with a very low profile. Why is this important? Because this type of ring type joint gasket has an internal diameter larger than the connecting pipe, allowing you to slide it...

Weld Neck Flange

Also known as tapered hub flanges or high hub flanges, weld neck flanges are a specific type of gasket with a protruding ridge and long neck used to connect pipework and provide you with a high-quality seal. Weld neck flanges, in particular, are a popular choice when...

Nitrile vs Viton® – What is the Difference?

As you start to make a decision about what type of O-rings to purchase for your business, you might wonder what material is the most suitable for your unique needs. Every business operation has different requirements for their O-rings, such as the temperature,...

Aflas vs Viton

When it comes to choosing O ring suppliers in the UK, you’ll find that there are a wide range of materials on offer for you to choose from. Many people find that the options can seem quite overwhelming, with some materials having similar properties but offering...

EPDM Gasket

Both the automotive and construction industries have started to use EPDM gaskets more frequently in recent times. This rubber material is UV light resistant and has many fantastic properties that make this part highly effective for a wide range of processes. Keep...

Metal Gaskets

When comparing gaskets for use within your business processes, you’ll find that these can be made from a variety of materials. Metal gaskets are a very popular option, offering many advantages over other materials. When looking at sealing product options, make sure...

AFLAS o ring

O rings come in many different dimensions, thicknesses, and materials. And it is the various different materials that o rings can be manufactured from that make each o ring unique and suitable for specific applications. In fact, there are hundreds of different types...

O Ring Vulcanization Process

With years of o ring knowledge and experience in o ring vulcanization, we're one of the leading experts in providing the right sealing solution for you. To view our full range, visit our O-ring product page, with a wide selection and something to match every...

What is a Window Seal?

A window seal is something that nearly all of us will have seen in our homes or workplaces and is designed to help make your building more comfortable. Within our range of Sealing Specialist Products, we offer a selection of window seals designed for various...

See our latest catalogue for all the services we offer.

How to stop environmental factors from ruining your o ring

How to stop environmental factors from ruining your o ringThe functionality and performance of an o ring depends on several factors, with one of the most significant factors being the environment in which the o ring is placed and exposed to.

At SSP, we know that every o ring is chosen to suit the application and device it is being used within, with careful selection of materials, hardness, shape, density, etc., all taken into consideration.

This level of consideration is vital. Vital because every application will be and is, different.

For example, some applications will be exposed to extreme and fluctuating temperatures. Others may be met with harsh chemicals requiring a different o-ring material.

In all cases, the chosen o ring must be suitable and continue to perform to a high standard to avoid potential leaks and contamination.

We know that you want to have high functionality and longevity in your o rings, which is why many manufacturers now take on a number of preventative steps at the beginning of their processes. Mapping out application requirements and ensuring seals are fully compatible.

With this in mind, what steps can you take to prevent environmental factors from negatively impacting your o rings?

O ring environment

Heat

When rubber o rings are exposed to incredibly high temperatures, the o ring can deteriorate quickly. Affecting the o rings strength and overall compatibility with the complete application, impacting performance and no longer providing a secure seal.

O ring material choice in high-temperature applications could include nitrile or silicone rubber.

Cold

Cold weather conditions can mean rubber o rings will lose elasticity, affecting overall compression.

O ring materials suitable for cold applications include FFKM, HNBR, and EPR.

Water

Providing a seal to prevent leaks and spillages, o rings must still be suitable for cases where they may see too much water, excess moisture, or high humidity levels. All of these can lead to the o ring swelling, changing the o ring’s physical properties.

O ring materials suitable for these environments include nitrile, Viton, or EPR.

Ozone

UV light can result in the deterioration and cracking of o ring material. As such, o rings should be kept out of direct sunlight, correctly lubricated, and the material should be fluorocarbon or EPDM.

How to combat weather exposure to o rings

Choose the right material.

O rings must be compatible with the chemicals and external factors they will be exposed to. Failure to choose the right material can result in faster wear and tear in the o ring, leading to overall failure and more severe problems.

For example, if we look at the o ring climate of cold weather and its effect on rubber o rings, we’ll see that the rubber will fast lose its elasticity, making it less flexible, prone to snapping and breaking, with the o ring often struggling to return to its natural size after compression.

Know the pressure.

Pressure does and will affect o ring performance, causing the o ring to distort and twist. This, in turn, affects the gap between the two mating surfaces.
In addition, if the wrong o ring is exposed to increasingly high pressure, the o ring will extrude from the mating surfaces leading to the seal failing, potential leaks, and the risk of contamination.

To help manage the effects of pressure, you can increase the hardness of o rings, use backup o rings, and even look to lower the pressure of the application where applicable.

Be prepared for extrusion.

It’s essential that you check that o ring material will be compatible with fluids/chemicals, as well as choosing the right size o ring for the clearance gap it is required to fill – you’d be surprised how often this is a major cause of failure.

Be aware of friction.

Continuously moving parts place additional pressure on o rings. Understanding the friction level will help determine which o ring to opt for. The wrong o ring that is unable to withstand friction can experience swelling, tearing, and complete failure.

To help, o-ring suppliers often advise opting for cross-section o-rings, carrying out regular lubrication, and potentially increasing groove width.

Understand temperature ranges.

As mentioned above, some o-rings work well in extreme heat and cold, whereas others work better at room temperature.
You need to choose the appropriate sealing material for the application, understanding all the environmental factors that will have an impact.

O ring suppliers, UK

O rings are used in dynamic and static applications; however, both will be exposed to environmental factors like those mentioned above.

You need to know what type of o-ring you not only want but that you need for your specific application.

As specialists in our field, to find out more and have your questions answered, speak to a member of our experienced team on 01535 274 776 or email your requirements to sales@specialistsealingproducts.co.uk.

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