RFB With Check Valve Magnetic Return Filter

RFB With Check Valve Magnetic Return Filter

5 day ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

RFB With Check Valve Magnetic Return Filter

Product Overview

RFB With Check Valve Magnetic Return Filter is a high-efficiency return-line FILTER designed for the hydraulic system of industrial Machine. It is mounted on the top of the hydraulic oil tank, integrating magnetic filtration and fiber medium filtration. This FILTER cleans returning hydraulic oil from the working circuit of the Machine, capturing ferromagnetic metal wear debris and other solid contaminants inside the hydraulic system before oil flows back into the tank.

Equipped with a built-in check valve, bypass valve and optional clogging indicator. The check valve prevents oil backflow when the Machine shuts down and keeps the pipeline filled with oil for smooth restart. The magnetic core can adsorb fine iron particles that ordinary filter elements cannot trap. Multiple flow and precision options are available for different hydraulic power units and industrial Machine.

Technical Specifications

- Model: RFB With Check Valve Magnetic Return FILTER

- Type: Tank-top mounted magnetic return filter with check valve

- Mounting: Tank top flange installation

- Rated Flow: 25 ~ 1000 L/min optional

- Filtration Accuracy: 3μm, 5μm, 10μm, 20μm

- Bypass Valve Opening Pressure: 0.35 MPa

- Clogging Indicator Signal Pressure: 0.3 MPa (optional)

- Built-in Part: Check valve + permanent magnetic rod

- Working Medium: Anti-wear hydraulic mineral oil, water-glycol, phosphate-ester fluid

- Operating Temperature: -20℃ ~ +80℃

- Feature: Integrated magnetic adsorption, built-in check valve and bypass valve, optional clogging alarm, easy element replacement

- Application: Return-line filtration for hydraulic system of industrial Machine

Working Principle

When the Machine is running, used hydraulic oil flows back to the tank through the RFB return FILTER. Large and non-magnetic impurities are trapped by the filter medium, while fine iron powder and metal wear chips are firmly adsorbed by the built-in magnetic rod. Clean oil flows into the hydraulic oil tank.

As contaminants accumulate, pressure drop increases. When pressure reaches 0.3 MPa, the clogging indicator sends out warning signal. If the Machine cannot stop maintenance immediately, the bypass valve opens at 0.35 MPa to avoid excessive back pressure and protect the hydraulic system. After shutdown, the built-in check valve closes automatically to stop oil from flowing back out of the pipeline, maintaining oil priming and enabling quick restart of the Machine.

Core Advantages

1. Dual filtration: magnetic rod captures fine metal particles plus filter medium traps solid debris, greatly improving oil cleanliness of the hydraulic system.

2. Built-in check valve prevents oil backflow after shutdown, avoids pump empty suction on startup and improves stability of the Machine.

3. Bypass valve and optional clogging indicator provide dual protection against over backpressure for the hydraulic system.

4. Convenient maintenance: replace filter element and clean magnetic rod directly from tank top without draining all hydraulic oil, cutting downtime of the Machine.

5. Wide flow range and multiple precision grades, strong interchangeability, suitable for heavy-duty hydraulic circuits with high metal wear.

Application Range

This FILTER is widely applied in the hydraulic system of hydraulic power packs, machine tools, metallurgical machinery, mining equipment, plastic injection machines, hydraulic presses and other industrial Machine. It is used for return oil purification, especially ideal for equipment with serious metal component wear, for new machine assembly and routine maintenance spare replacement.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 Audited supplier

4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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