Filter element
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Engine oil-water separator filter element
Introduction to the filter element of the engine oil-water separator filter
The filter element of the engine oil-water separator adopts a composite design, usually consisting of a two-stage structure of a coalescing filter element and a separating filter element. The coalescence filter uses glass fiber or polyester fiber as the substrate, and achieves solid-liquid separation, emulsion breaking, and small water droplet coalescence through multi-layer composite filter paper. It aggregates water droplets with a diameter of 0.1-10 microns into large water droplets; The separation filter element uses hydrophobic materials (such as stainless steel mesh sprayed with polytetrafluoroethylene) to intercept large water droplets using the principles of oil-water density difference and surface tension, achieving efficient separation. Taking the Volvo EC290 excavator as an example, its matching filter element uses physical filtration and inertial collision mechanism to reduce the moisture content in the fuel from 0.5% to below 0.02%, while intercepting 99.9% of solid particles. Some high-end products such as Dongli PTFE filter cartridges, designed with a 0.15 micron pore size, can operate continuously for 3000 hours under a pressure difference of 1.0 MPa, significantly reducing the wear rate of high-pressure common rail system fuel injectors.
Characteristics of engine oil-water separator filter element
The core advantages of filter cartridges are reflected in three aspects: filtration accuracy, pollutant holding capacity, and environmental adaptability. The filter element adopts the coarse fine ultrafine three-stage fiber stacking technology, with a filtration efficiency of up to 99.9% and a 40% reduction in resistance compared to traditional filter materials. Taking the FS1280 model as an example, its folding design allows for a filtration area of 0.8 square meters, which is three times that of a straight tube filter element, and increases the pollutant holding capacity to 12g/100L of fuel. In terms of material, 316L stainless steel skeleton combined with fluororubber sealing ring can withstand extreme temperatures from -40 ℃ to 120 ℃, suitable for harsh working conditions such as high altitude and extreme cold. In the marine fuel system, the filter element is certified according to API-1581 standard and can effectively separate seawater with a salt content of 3% from the fuel mixture, preventing salt corrosion of engine components. Experimental data shows that using high-quality filters can extend engine life by 2-3 times and reduce fuel consumption by 5% -8%.
Scope of use of engine oil-water separator filter element
Filter cartridges are widely used in diesel engines, gas turbines, and industrial oil treatment fields. In the field of heavy-duty trucks, the Cummins ISX15 engine matching filter needs to be replaced every 20000 kilometers, while the filter using nano coating technology can extend the cycle to 40000 kilometers. In the field of shipbuilding, MAN B&W 6S60MC-C engines require mandatory replacement of filter cartridges when the pressure difference exceeds 0.15MPa to avoid fuel pump cavitation. In industrial scenarios, when the coalescence separation filter element is applied in the lubrication system of steel mills, it needs to be combined with a steam backwash device to achieve automatic cleaning, with a single processing capacity of up to 50m ³/h. In terms of maintenance, it is recommended to check the appearance of the filter element every 500 hours and replace it immediately if any deformation or damage is found; Long term shutdown of equipment requires emptying the residual oil in the filter element to prevent microbial growth. Some high-end products, such as the Parker R60S-PHC-B92 model, achieve lifespan warning through integrated pressure sensors. When the pressure difference reaches the set value, it automatically triggers a replacement prompt, significantly improving operation and maintenance efficiency.