1.Rfa series filter is used in return line, it can remove all the contaminants from the hydraulic system, and allow the clean oil flow back to the tank.
2.The element of this series is made of glass fiber, it has high efficiency and filtration , large dirt capacity and lower initial pressure drop.
3. There is a bypass valve and a contamination indicator.
4. The indicator will act when the pressure drop across filter element attains 0.35 M pa, the element should be changed at this time.
5.If the system can not be stopped or nobody replaces the element, the bypass valve will open to protect the hydraulic system safety.
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