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Rubber Products: How to choose the right rubber seal material?

Publish：2022-12-09 View：671

The first design factor to consider is: What substances will the seal come into contact with in the system? In addition to pay attention to whether the sealing material is resistant to the sealed fluid, such as air, water, oil, steam, fertilizer and so on. Attention should also be paid to metal or plastic parts in contact with the seals. For example, if the unsuitable rubber piece is left with the polycarbonate plastic for a long time, some components of the rubber piece will slowly penetrate the contact surface, causing the polycarbonate to crack.

Second, even if the rubber seal is only in direct contact with drinking water, the residual disinfectant in the water is also a factor to consider. What is used to disinfect the drinking water that comes into contact with the rubber parts? Every country and region in the world has different methods of disinfection. The main methods are chlorination disinfection and chloramine disinfection. The research shows that these disinfectants in the water will react with the rubber parts, make the rubber parts swell and deform, and even decompose, thus affecting the sealing function and life of the rubber parts.
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