Some time ago, a Russian customer mentioned in a chat that many of his colleagues didn't know much about the material of the seal ring of the hydraulic valves and lacked judgment in the purchasing process of the hydraulic valves. They were recommended by the manufacturer every time, which led to the leakage of most products. How to select the material of the seal ring?
In fact, more than one customer has mentioned this problem to me. Today, we will continue to talk about "material classification and related application of hydraulic valve sealing ring" and other related issues as mentioned in the last article, maybe you can gain something from below brief introduction:
1. NBR: NBR has excellent resistance to fuel oil and aromatic solvents, but not to ketone, ester and hydrogen chloride. Therefore, oil resistant sealing products are generally based on nitrile rubber.
2. Fluorine rubber: fluorine rubber has outstanding heat resistance (200 ~ 250 ℃), oil resistance, can be used for m
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