Oil Seal Types

We can't emphasise enough how important it is to choose the right oil seal to keep your application functioning, and functioning well. Not every oil seal is the same. Manufactured using various material elastomers and to suit a range of dimensions, seals are as unique...

Rotary Shaft Seals

Rotary shaft seals are the more formal name for this type of seal; however, we also know them as oil, grease, fluid, or dirt seals. Whatever you call them however, they all perform the same function – to close the space between stationary and moving parts in machinery...

Silicone O Rings

As a leading O ring UK manufacturer and supplier of high quality seals and gaskets, offering a wide range of types, sizes, and sealing solutions that suit various applications across all industries, we work hard to ensure you get the best sealing solution for your...

Viton O Rings

Viton o rings bring with them numerous advantages, especially for applications within high-tech and critical industries. Providing great resistance to wide fluctuations in temperature and chemical ranges as well as being wholly suitable for pressure applications,...

How are O Rings made?

O rings are one of the most common components within manufacturing. Suitable for a range of applications and found in numerous everyday appliances, o rings are a vital piece of equipment to provide the perfect sealing solution. Ring-shaped seals, o rings are made up...

Pipe Gasket

A pipe gasket is designed to seal a space between two sections of a pipe. Many pipes have flanged surfaces where they join, which means it isn’t smooth or flat to make this connection secure. In order to overcome this flared area, a flange gasket will be used to...

Spiral Wound Graphite Fill Gasket

With so many different gasket options on offer today, we know it can be difficult deciding which ones have the right features for your needs. Each type of gasket is suitable for a variety of applications or uses, and the material that your gasket is made from will...

Gasket Cutting

Using the latest technology and equipment, gasket cutting today offers incredible precision. Achieving customised gaskets that meet your sealing requirements, today we’re now seeing various gasket cutting techniques used as we move away from the standard dimensions...

What are Bonded Seals?

As you start to compare the seals on offer on our site, you’ll find that there are many different options for a variety of uses. Bonded seals are a great solution for some applications, offering many benefits over other types of seals. Specialist Sealing Products...

Rubber Gasket Material

Rubber gaskets are a very valuable solution for a variety of uses, however, you’ll want to make sure you always choose the right option for your unique business operations. There are a variety of rubber gasket materials on offer, which provide you with an effective...

See our latest catalogue for all the services we offer.

O-Ring Squeeze Ratios – Everything You Need to Know

O-Ring Squeeze Ratios – Everything You Need to Know

If you need to install an O-ring seal, you might be wondering what you need to know about squeeze ratios. Specialist Sealing Products offers a wide range of products for your needs, and we’ll be here to help you when selecting the right design and material for your current application. Keep reading as we discover how to install an O-ring seal and select the right squeeze. 

Find out more

What is the O-Ring Squeeze? 

The O-ring squeeze is the percentage that represents the measurement of the deformation of a seal when it comes into contact with mating hardware. The percentage represents part of the cross-sectional thickness, and all O-rings have some levels of elasticity. This elasticity is a result of the contact that blocks the flow of the liquid or gas that comes between the seals. 

What Squeeze Ratio Do You Need? 

Selecting the right squeeze ratio is the biggest challenge for companies that use an O-ring supplier in Leeds. The higher the squeeze percentage, the tighter your seal will be. However, that doesn’t mean a high number is always suitable for every type of application. You need to keep in mind what type of process you will use as part of selecting the right option. The mating hardware stress can result in damage if the squeeze is too high. This is important to consider for anyone who is using a seal within a highly repetitive application. O-rings that have a higher squeeze will wear out much quicker than other O-ring options. This is due to the increased friction, which impacts how well the seal performs. When an O-ring is pinched too much, damage can also occur, leading to a lack of effectiveness when this is repeated over some time. 

The compression set is another term you’ll hear mentioned when discussing the O-ring squeeze calculation. This is the force that’s exerted by the squeezed elastomer, and over time, you’ll find that it slowly becomes less. Once the O-ring is able to retain the squeeze shape without even being squeezed, it’s much more likely to have issues when it comes to sealing. The compression set measures how often this takes place and how effective it is at sealing. The higher the squeezing level you invest in, the more time it will take to reach the recommended 80% threshold. 

The other thing to keep in mind when looking at O-ring suppliers in the UK is that the material that’s used will impact the squeeze. Nitrile rubber is one example of a high squeeze level material, whereas something like Perfluorinated elastomers is much more likely to break if it’s put under too much pressure. Remember, no two seals are created to be exactly the same, so there are different applications and recommendations for each option. Over time, you may find that one option will fail for one application but still be a great choice for another. That’s why you need to work with a supplier who understands the best O-ring squeeze ratio for your needs and business. We’ll be able to recommend what the best option for your company would be to find an effective and long-lasting solution. 

How to Create an Effective Seal 

When looking at the O-ring squeeze, it’s all about finding an option that provides you with an effective seal. Thicker rubber loops are more likely to compress well and offer you a better seal. They are usually slightly larger than the hardware they are placed inside. However, you also need to consider managing the O-ring properly in order to receive these benefits.  

The O-ring squeeze ratio is a critical number to consider, and you’ll find that it will showcase the free-state cross-sectional density against installation deformation volume. Don’t worry if you still don’t feel confident about which O-ring compression to select or how to shrink an O-ring, as we’ll be more than happy to assist with this task and set you up for success in the future. Sometimes it’s a case of trialling a few different options over a period of time and then returning to the most suitable one for the future. 

Now that you know what the O-ring squeeze is, you’ll be well equipped to work with our team and select the right option for your business. It’s all about finding the solution that works for the application you will be using it for in the future. We don’t recommend just choosing the highest O-ring squeeze ratio, as this might not be the right choice for your needs. Instead, work with our team to discuss the options, and we’ll give you our expert opinion to help find the right O-rings for your company. Contact us today for more information and to discuss any questions you have about using O-rings for different applications. 

Find out more

Read the next article: The job of an anti-extrusion ring



Contact Us
close slider