RF Series Large-Capacity Return Oil Filter For Tank Pipe Mounting
What Is A Direct Back Return Line Filter?
A: The RF Series Direct Back Return Line Filter is a high-precision hydraulic filtration component designed for fine filtration of return oil in hydraulic systems. It removes metal particles and rubber contaminants to maintain oil cleanliness, protecting critical components from wear and extending system life.
Performance and Characteristics
Core Advantages
High Filtration Precision: Uses glass fiber filter media calibrated to absolute filtration accuracy, with a filtration ratio β≥100 and efficiency ≥99% (meeting ISO standards). This ensures reliable removal of even fine contaminants.
Efficient Oil Flow: Features large oil-passing capacity and minimal original pressure loss, ensuring efficient hydraulic system operation with minimal energy consumption.
Large Contaminant Capacity: The glass fiber media provides a high dirt-holding capacity, extending maintenance intervals and reducing downtime.
Flexible Installation: Can be mounted directly on the oil tank cover plate or via a pipe connection, adapting to diverse system layouts.
Reliable Contamination Control: Effectively captures metal particles from component wear and rubber debris from seal degradation, ensuring clean oil returns to the tank.
Function & Application
It is primarily used for:
Hydraulic System Protection: Installed in the return line to protect pumps, valves, and cylinders from abrasive contaminants, reducing component wear and failure.
Oil Cleanliness Maintenance: Ensures consistent oil quality, extending the service life of hydraulic oil and reducing the need for frequent oil changes.
Industrial Hydraulic Equipment: Ideal for machine tools, construction machinery, and factory automation systems where high filtration accuracy and reliability are critical.

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