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.
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.
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