Replace MF4002 series hydraulic oil filter element

The MF4002 series hydraulic oil filter cartridge is a high-performance filter element specially designed for hydraulic systems, which can fully adapt to various models and specifications of the original MF4002 series. The filter element adopts an advanced folding structure design, and the filter material is selected from imported high-quality glass fiber filter paper, supported by a stainless steel frame, which has excellent pressure resistance and pollutant holding capacity. The product is strictly manufactured in accordance with multiple international standards such as ISO 2941 for fracture resistance verification, ISO 2942 for structural integrity, and ISO 3724 for fatigue characteristic determination. The filtration accuracy covers multiple levels from 1 μ m to 100 μ m, with a working pressure range of 21 bar to 210 bar and a working temperature of up to -30 ℃ to+110 ℃, widely meeting the stringent filtration needs of various industrial hydraulic systems.

The MF4002 series hydraulic oil filter element is replaced by a sealed connection structure at one end, with reliable sealing achieved by sealing rings at the upper and lower ends. The other end is equipped with a bypass valve design to ensure that the filter element can continue to operate in a blocked condition. The medium flows from the outside to the inside, supported by a spiral skeleton inside the core, with a pressure bearing capacity of up to 10-32MPa; Imported high-quality filter materials that closely adhere to the skeleton provide multiple precision options ranging from 1 to 25 μ m, which can efficiently filter out solid particles and gel like impurities in hydraulic oil, and control the pollution level of the working medium at an extremely low level. The sealing materials used are fluorine rubber rings and nitrile rubber, which have excellent oil and temperature resistance, ensuring long-term use without leakage.

The MF4002 series hydraulic oil filter cartridge is widely used as a substitute for engineering machinery (excavators, loaders, cranes, bulldozers, etc.), metallurgical equipment (hydraulic systems of steel mills and continuous casting machines), petrochemical industry (separation and recovery of refining and chemical products), power equipment (turbine lubrication system), ship hydraulic systems, injection molding machines, and large precision machinery lubrication systems. It is also suitable for agricultural machinery, textile machinery, and various industrial equipment that require hydraulic power transmission.

High precision filtration: Multiple levels of precision ranging from 1 to 25 μ m are available, effectively intercepting fine particles and extending the service life of hydraulic components. Super strong pressure resistance: The pressure can reach up to 32MPa, and under special working conditions, it can reach 42MPa, far exceeding the standard of conventional filter cartridges. Wide temperature resistance range: stable operation 24/7 from -30 ℃ to+110 ℃, suitable for high temperature areas. Imported materials and domestic prices: using glass fiber filter paper and stainless steel frame of the same quality as the original, the cost is significantly reduced and the cost-effectiveness is outstanding. Complete specifications: MF4002A10HB, MF4002P10NV, MF4002M60NB, MF4002A25NB and other models in the entire series can be supplied, supporting customized processing.

Problem 1: Poor fuel supply after replacement.

The main reason is that the air and residual liquid inside the filter element have not been completely drained.

Solution: Open the vent screw and loosen it about three turns. Remove the drain valve to drain the liquid from the filter element. After confirming that the rubber ring is intact, press the pump oil evenly on the cover. After a uniform oil flow flows out from the vent screw, tighten it.

Problem 2: Leakage at both ends of the filter element.

The reasons are often due to aging of the sealing ring or improper installation.

Solution: Check if the sealing ring is intact, replace the fluorine rubber seal, ensure that the pressure cover is evenly and vertically pressed down, and avoid tilting operation.

Problem 3: The lifespan of the filter element is relatively short.

The reason may be that the pollution level of the working medium is too high or the selection accuracy is not matched.

Solution: Regularly check the cleanliness of the oil, select the appropriate accuracy level according to the actual working conditions, and recommend checking the pressure difference every 500 working hours. If the pressure difference exceeds 0.35MPa, replace it in a timely manner.