introduction
The oil suction filter can be directly installed on the side, top, or bottom of the fuel tank, with the suction barrel immersed below the liquid level inside the tank. The filter head of the oil suction filter protrudes outside the tank and is equipped with a self-sealing valve, bypass valve, filter element contamination blockage indicator, and other devices, ensuring that the oil in the tank will not flow out when the filter element is replaced or cleaned.
However, to avoid cavitation in the pump, adequate attention must be paid to pressure loss. Generally, a coarse metal mesh or notched wire material with a mesh size of 100 to 200 is used. Therefore, it is not a filter for controlling the contaminant concentration in the system.
This is a radiator accessory installed on a concrete mixer truck, known as a Filter Assembly or TFB Oil Suction Filter, Oil Filter, etc. It is an essential accessory for radiator manufacturers. The Filter Assembly is designed to ensure the cleanliness of the fuel tank and effectively control impurities and contaminants within the hydraulic system.
Key Performance Indicators of Oil Suction Filters
- Filtration Accuracy
Filtration accuracy refers to the filter's capability to remove particulate contaminants of varying sizes. It is commonly evaluated using indicators such as absolute filtration accuracy, filtration ratio, and filtration efficiency. Filtration accuracy is classified into four grades: coarse (d≥0.1mm), standard (d≥0.01mm), fine (d≥0.005mm), and ultra-fine (d≥0.001mm).
- Pressure Drop Characteristics
In a hydraulic system, filters act as a fluid resistance to the oil, leading to a pressure drop as the oil passes through. Generally, given a fixed filter element size and oil flow rate, a higher filtration accuracy of the filter element results in a greater pressure drop. Conversely, with a fixed flow rate, a larger effective filtration area of the filter element or a lower viscosity of the oil leads to a smaller pressure drop.
The maximum allowable pressure drop for a filter element should be set to prevent structural damage to the element. Typically, the initial pressure drop for filters used in aviation and naval applications should not exceed 0.25MPa, while that for mechanical filters is generally within 0.08 MPa to 0.15 MPa.
- Contaminant Holding Capacity
The contaminant holding capacity refers to the amount of pollutants that a filter can retain before its pressure drop exceeds the specified limit, expressed in weight (g). A higher contaminant holding capacity indicates a longer service life for the filter, making it a crucial indicator reflecting the filter's lifespan. A larger effective filtration area of the filter typically translates into a greater contaminant holding capacity.
Customized filters of different specifications and models are available upon user's request.
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