The pressure resistance among several rubber hoses
Peristaltic pump is gradually popular. Because it pump without pollution and need less maintenance. Peristaltic pump hose is one of the most important part. However, some users usually choose the wrong hose. While this cause it not adapt to the work. What’s more, some users even replace the hose with normal one. But this will cause serious result. With more and more types appear on the market, it’s hard to choose a proper hose. You should consider 10 factors when choose the hose.
Chemical compatibility
Peristaltic pump hose should be compatible with chemicals. Only this is can have excellent pump and safe property. Hose supplier may provide chemical compatibility table. However, you have to customize special table for peristaltic hose. But not the normal hose. Because normal hose has just general touch with chemical. While peristaltic hose contact the chemical at pressure. Thus the grade should be different. Otherwise it may cause leakage or crack. Then cause security problem to the pump work.
When you refer to the table, you should check all but the main ingredients. For example, acid or solvent will cause huge damage to the hose after several hours’ touch. Even just a small content. Therefore, you have to check all the chemicals in the solvent. Then make sure all of them are compatible with the hose.
Besides, the chemical resistance reduces with the temperature grows. Some chemicals will not affect the hose at room temperature. But once rises to a certain degree, it will damage the hose. If one chemical is not on the list, you can take a soak test to get the reliable information.
In another hand, the chemical compatibility is quite different for hoses and solvents. However, some material has excellent resistance to chemicals. For example, PTFE hose is almost compatible with all the chemicals.
Today we learned the first factors that you should focus on. Follow OrientFlex and see the others.
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