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Compressor Parts: The Importance of Profile Rings

How much do you know about compressor parts – specifically the importance of profile rings? Believe it or not, understanding the design and maintenance of profile rings is invaluable information. Read more below.

Compressor Parts: The Importance of Profile Rings - KB Delta

There are a myriad of uses your compressor might have. Perhaps it is used, as it commonly is, in industries such as aerospace, medical manufacturing, electronics, automotive manufacturing and dozens of other industries where compressors play an integral part in the process of manufacturing and developing products.

Compressors are an invaluable resource, but what parts of the compressor are most important? Each unit is made of many different parts, and each has a different purpose, but one of the most important aspects of any compressor is its profile rings.

Thermoplastics are an improved structure of elastic sealant that creates the foundation of high-performance compressor profile rings. When fixed between highly inelastic parts of material, profile rings create a substantially impervious seal to liquid or gas passage, even under extreme pressures and temperatures. So their quality must be impeccable.


How Does a Profile Ring Work in a Compressor?

Custom tailored and cut profile rings can accomplish a variety of complex functions. For instance, their aerodynamic configuration facilitates a superior seal for multiple hydraulic purposes such as in valves, construction machinery, hydraulic presses, and various other combinations involving threaded tubing.

If you see a profile ring, it may not immediately strike you as an essential part of a compressor. They are typically either a small cap or a flat, circular piece that is slatted. Both of these types serve the function, however, of tightly sealing chambers in a compressor and providing insulation to steam, gases and liquids.

With their innovative shape, profile rings can withstand the intense pressure that makes them perfect in inflexible circumstances. Again, this provides the edge to accommodate for any imperfections in the machinery they form the seal with to keep steam and additional liquids out efficiently, ensuring that the machinery being operated will operate effectively.

This is important since the internal chambers of a compressor must be entirely leak-proof in order for the tool to function properly. The profile rings are available in a variety of different materials, and your choice should be made based on the types of chemicals and materials the compressor will be dealing with.

Compressor Parts: The Importance of Profile Rings - KB Delta


Customized Design for Optimal Function

Depending on the specific use of any type of ring, rings can be designed and cut according to custom specifications. Having rings specially made is the best way to ensure a perfect fit with maximum imperviousness. The highest-quality rings are made with top-of-the-line instruments in order to achieve optimal precision in measurements.

Profile rings can be made with several types of materials. Crucial attributes include the ability to withstand extremely high temperatures and pressures. For this reason, thermoplastics usually form the base of any type of ring, contributing an advanced structure of elastic sealant.

The four common types of profile rings include:

  • MT
  • PEEK
  • Nylon
  • Carbon PEEK

All of these substances have varying degrees of flexibility, temperature resistance and pressure resistance. In some settings, profile rings need to withstand not just high temperatures and pressure, but also extreme fluctuations in either or both.

When choosing replacement profile rings, it is important to consider their specific intended use, so that they can be made with the materials and construction that is best for that use.


How Can I Tell a Profile Ring Needs to Be Replaced?

Keeping all parts of any compressor in good order and replacing them as necessary will keep your machines working longer and better. Profile rings are small, yet essential, parts that are vital for optimal functioning.

During your compressor’s regular maintenance routine, be sure to include a comprehensive check of profile rings. They can wear out, crack or break quickly due to the immense pressures and heat they can be subject to.

The good news is that they are an easily replaced part in your compressor. How can you tell when it might be time to install a new set, though?

There are a few signs you can look out for that indicate your profile rings may be getting worn out:

  • Strange noises coming from the chambers where the rings are in use
  • Leaks indicating they no longer provide a perfect seal
  • Visible wear on the pieces themselves
  • Loss of pressure in compressor’s chambers
  • Aging

Once you have identified that your profile rings should be replaced, you should likely replace all of them. Your profile rings work in tangent to maintain consistent pressure and seal in a compressor’s chambers. So this balance is upset when one ring needs to be replaced.



Designing and custom tailoring the exact specifications required can only be performed by a company with proper knowledge and equipment expertise. Having detailed and accurate measurements will ensure correct dimensions and guarantee an impeccable seal for whatever requirements are needed.

Because thermoplastic failure is extremely likely, it is always an excellent choice to repair or replace seals on a fixed time schedule. Or at the first sign of degradation.

Compressor Parts: The Importance of Profile Rings - KB Delta


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