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Self-Sealing Return Oil Filter RFB Series Upgrade for PZU Series Filters

Feb 07, 2026 Leave a message

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.

 

                

RFB-16-1

 

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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Customized product display

 

 

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

 

info-743-368

 

Related Products

 

 

If you also have business in hospitals or clean rooms, you can take a look at these products.

 

Primary Efficiency Universal Plate Air Filter (G1-G4 Low Resistance & High Efficiency Type)    PPS/PTFE High-Temperature Resistant Chemical Fiber Needle-Punched Filter Material Precision Direct Back Hydraulic Return Line Oil Filter

 

 

 

 

 

 

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