Self-Sealing Return Oil Filter RFB Series Upgrade for PZU Series Filters
What Is A Direct Back Self Sealing Return Filter?
A: The RFB Series Direct Back Self Sealing Return Filter is a high-performance hydraulic filtration device designed for the fine filtration of return oil in hydraulic systems. It integrates magnetic particle capture, self-sealing maintenance, and system protection features to ensure clean oil and reliable operation of hydraulic components, and is a direct replacement for the PZU series.

Performance and Characteristics
Core Advantages
Dual Filtration Efficiency: Combines mechanical filtration with a built-in permanent magnet to capture ferrous particles and rubber contaminants from return oil, protecting critical components from wear.
Self-Sealing Maintenance Design: When replacing or cleaning the filter element, the integrated self-sealing valve prevents oil from flowing out of the tank, eliminating the need to drain the system and reducing maintenance downtime.
Compact & Space-Saving: The direct back design simplifies system piping, making it ideal for installations with limited space.
Cost-Effective Upgrade: A direct replacement for the PZU series, offering improved performance and reliability without requiring system modifications.
Function & Application
It is primarily used for:
Hydraulic System Protection: Filtering return oil to remove metal particles and rubber contaminants, protecting pumps, valves, and other critical components from wear and damage.
Oil Cleanliness Maintenance: Ensuring oil returning to the tank remains clean, extending oil service life and reducing system downtime.
Industrial Hydraulic Equipment: Ideal for machine tools, construction machinery, and other hydraulic systems requiring reliable return oil filtration.

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OEM, OEM Production services. Independent R&D team, one-stop solution for cleanroom projects.

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