WY series magnetic direct return oil filter

The WY series magnetic direct return oil filter is an integrated purification device designed specifically for the return oil end of hydraulic systems. It adopts a fully immersed oil tank layout structure, with only the filter head exposed outside the tank and the rest of the cylinder fully immersed in the oil. While simplifying the system pipeline layout, it greatly compresses the installation space and adapts to the integrated assembly requirements of various standard hydraulic stations. The product deeply integrates strong magnetic adsorption and precision filtration functions, which can simultaneously intercept ferromagnetic particles and filter out non-metallic impurities during the process of oil reflux to the oil tank, reducing the pollutant base of the system oil from the source and providing stable cleanliness guarantee for hydraulic components.

The WY series magnetic direct return oil filter is equipped with high-performance strong magnetic components, which can accurately capture ferromagnetic particles larger than 1 micron. Paired with filter cartridges of different precision levels, it achieves dual gradient filtration effect; Equipped with a bypass valve with a built-in opening pressure of 0.4MPa, it can automatically open in the event of low-temperature cold start or filter blockage causing pressure difference to exceed the limit, avoiding the filter from being punctured by high pressure and ensuring the continuous operation of the system without interruption; Equipped with an integrated check valve, when the filter is installed on the side or bottom of the fuel tank, there will be no backflow or leakage of oil in the tank during the process of replacing the filter element. A single person can complete all maintenance operations; A dedicated liquid flow diffuser is installed at the bottom of the cylinder to allow the return oil to flow smoothly into the oil tank, greatly reducing the generation of bubbles and air mixing, and avoiding the pollutants deposited at the bottom of the oil tank from being stirred and diffused by the liquid flow. At the same time, it is equipped with a pressure difference transmitter with a trigger threshold of 0.35MPa, which can provide real-time feedback on the clogging status of the filter core, and the operation and maintenance personnel can intuitively grasp the replacement timing.

The WY series magnetic direct return oil filter is widely applicable to the oil purification process of various industrial hydraulic systems. It can be used in hydraulic stations of construction machinery, lubrication systems of mining equipment, hydraulic circuits of metallurgical rolling, hydraulic control systems of machine tools, hydraulic devices of light industry automation, hydraulic power units of petroleum transportation, and other scenarios. It is particularly suitable for continuous operation conditions with high proportion of ferromagnetic pollutants and strict requirements for oil cleanliness in the system. It can effectively reduce the wear rate of core components such as hydraulic pumps, servo valves, and oil cylinders, and extend the overall service life of hydraulic systems.

Compared to conventional pipeline return oil filters, the WY series magnetic direct return oil filter adopts a fully immersed structure, significantly reducing the amount of external pipelines used, making the system layout more compact, and significantly reducing the number of leakage points; The strong magnetic front filter layout first intercepts large-sized iron filings, and then completes secondary filtration with precision filter elements, which can effectively extend the service life of the filter elements and reduce long-term operation and maintenance costs; Multiple safety protection structures synchronously cover the four core requirements of cold start protection, oil change leak prevention, liquid flow stabilization, and blockage warning, without the need to install additional supporting auxiliary components to meet the requirements of full scenario use; The overall structure has a high degree of modularity, and disassembly and maintenance do not require the use of specialized tools, greatly reducing downtime for maintenance.

When the differential pressure transmitter frequently triggers an alarm, first check whether there is a short-term flow overload situation in the system. If the flow is normal, it indicates that the filter element has reached the blockage threshold, and replace it with a new filter element of the same precision specification in a timely manner; In the cold start state, the oil return resistance is significantly higher, which is a normal phenomenon of increased oil viscosity in low-temperature environments. After the oil temperature rises during system operation, the resistance will naturally decrease. If it cannot be restored for a long time, it is necessary to check whether the bypass valve is stuck and clean the impurities attached to the valve body to restore normal function; After replacing the filter element, if there is oil leakage, it is necessary to check whether there are foreign objects attached to the sealing surface of the check valve, whether the end cap sealing ring is installed in place, clean the impurities on the sealing surface, and re press the end cap to solve the problem; During operation, there is a significant increase in bubbles in the fuel tank. It is necessary to check whether the liquid flow diffuser is blocked or deformed. Cleaning the diffuser holes or replacing corresponding accessories can restore the return oil to a stable state.