Dual Visual & Electric Indicator Self-sealing Hydraulic Return Filter For Metallurgy Machinery

A: RFB series direct return self-sealing magnetic return filter is an upgraded new structure replacing traditional PZU series filters, designed for fine filtration of return oil in hydraulic systems.

Performance and Characteristics

All‑Polypropylene Construction: Shell, center rod, and end caps are all made of PP. Formed by thermal welding without adhesives, ensuring no pollution or media shedding.

Gradient Pore Structure: The "sparse outside, dense inside" pore design traps large particles on the outer layers and fine particles deeper inside, preventing rapid surface clogging and extending service life.

High Filtration Performance: The combination of pleated (folded) and deep‑layer filtration creates a large effective filtration area, resulting in high efficiency, low pressure drop, and strong dirt‑holding capacity.

High Cleanliness & Safety: The PP filter element itself has high purity, causing no secondary pollution to the filtered liquid.

Excellent Chemical Resistance: Resistant to acids, alkalis, and most organic solvents, making it suitable for filtering a wide range of aggressive fluids.

Customizable Specifications: Available in various sizes, lengths, and micron ratings to meet different application requirements.

Pharmaceutical Industry: Filtration of injection solutions, medicinal liquids, and antibiotic preparations.

Food & Beverage Industry: Filtration of beverages, wine, mineral water, and other liquids requiring high hygiene standards.

Electronics Industry: Pre‑filtration of pure water and ultra‑pure water used in manufacturing processes.

Chemical Industry: Filtration of acids, alkalis, solvents, and other corrosive liquids.

General Industrial: Water treatment, process water filtration, and pre‑treatment for RO systems.

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

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

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