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Bellows are used to protect moving parts of machines against dust and dirt, to absorb vibrations and correct shifts. The durability of a bellow is a very important requirement. 

The properties of modified PTFE, excellent chemical resistance, long flex life and high temperature resistance makes it a very good material for high demanding bellow applications.

Its manufacture requires some specialism, which is undoubtedly in-house at Polyfluor. Polyfluor has more than 40 years of experience making end products like bellows with PTFE. We do this entirely according to your ideas and wishes. After all, every machine is different; customization usually offers a solution with respect to specific situations. Polyfluor guides you through the entire process, from design to end product, so you are perfectly assisted with your question.

Types of Bellows

Bellows come in various shapes and sizes. There are roughly three types, each of which is suitable for different applications:

Chipless Inserted Bellows

These bellows are particularly suitable for low-pressure applications (up to approximately 3 bar). Due to their design, these products offer the greatest flexibility. This type also has the shortest installation dimensions and can often be extended to a great length.

Machined Round Bellows

These bellows are suitable for medium-pressure applications (up to approximately 6 bar). As a result, they are easier to clean, which reduces the risk of contamination in the machinery.

For High Pressure and Vacuum Applications

Polyfluor also provides bellows for high-pressure and vacuum applications. For example, they are used when a different design is desired within piping systems, such as thicker wall thickness. Due to the increased stiffness, movement is also much more limited. Additionally, the installation length is a lot longer. Further, a vibration or slight movement (axial, lateral or angular displacement) is a reason for the application of this type of product.

Applied in Various Industries

Polyfluor PTFE bellows are widely used in the chemical and petrochemical, food, automotive, and pharmaceutical industries. We also supply products to various other industries. 

Additional Solutions

Polyfluor supplies various solutions based on PTFE and other polymers, such as membranes, seals, injection-moulded parts, shrink fibres, glass fibre, fluoroplastic plastic hoses, shrink hoses and cleanroom tubing. Regardless of your question, Polyfluor will offer a total solution.

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