CN
The main performance indicators of stainless steel filter are filtration accuracy, pressure drop characteristics, nano scale capacity, etc., so first of all, we want to introduce the stainless steel filter precision is the stainless steel filter element of different size particle pollutants filtration ability, commonly used filtration accuracy, filtration ratio and filtration efficiency indicators to evaluate.
[A] selection of stainless steel filter element (1) stainless steel filter element to have a certain mechanical strength, not due to liquid pressure and damage. (2) the selection of stainless steel filter element, according to the characteristics of the above oil filter, combined with a variety of typical hydraulic components and system requirements for pollution level or filtration accuracy, the system's working pressure, oil temperature and oil viscosity to select the model of stainless steel filter element. (3) For the hydraulic system that can not be shut down, the stainless steel filter element with switching structure must be selected. The filter element can be replaced without stopping. For occasions where the filter element is blocked, stainless steel filter element with transmission device can be selected. (4) The stainless steel filter element should have enough flow capacity flow capacity refers to the large flow allowed through the stainless steel filter element under a certain pressure drop, should be combined with the stainless steel filter element in the system installation position, according to the stainless steel filter element sample to select.
[2] Installation of stainless steel filter element (1) installed in the oil outlet of the pump A. Can protect other hydraulic components except the hydraulic pump. B. Stainless steel filter element should be able to withstand the working pressure and impact pressure on the oil road. C. The filtration resistance should not exceed 0.35mpa to reduce the pressure loss caused by filtration and the liquid pressure on the filter element. D. In order to prevent the overload of the hydraulic pump or the damage of the filter element caused by the blockage of the stainless steel filter element, the pressure oil road should be connected with a side valve or a series indicator device. E. Must be able to pass the full flow of the hydraulic pump. This method is often used to filter high precision system and servo valve and speed valve, to ensure their normal work. (2) Installed in the oil suction port of the pump requires the stainless steel filter element to have a large flow capacity and a small resistance (resistance is not greater than 0.01 ~ 0.02MPa), the oil flow capacity should be twice the pump flow, to prevent the occurrence of cavitation phenomenon. It is mainly used to protect the hydraulic pump, but the wear products produced in the hydraulic pump will still enter the system. Generally, the mesh stainless steel filter element with low filtration accuracy is used. (3) Installed on the oil return circuit of the system a. It can filter out metal chips and rubber particles generated by hydraulic components after wear and protect the hydraulic system. B. Stainless steel filter elements with lower strength and stiffness are allowed. C. In order to prevent the system pressure rise caused by the filter element blockage, a one-way valve in parallel with the stainless steel filter element is required to act as a bypass valve. (4) Installed in the independent filtration system of large machinery hydraulic system, can be specially designed by the hydraulic pump and stainless steel filter element of the independent filtration system, can continuously remove impurities in the system, improve the cleanliness of the oil. Such as oil filter car. Stainless steel filter element filter element is the heart of the stainless steel filter element, remove a small amount of impurities in the filter medium, can protect the normal work of the equipment or the clean air, when the fluid through the stainless steel filter element has a certain accuracy of the filter element, the impurities are blocked, and clean flow out through the filter element.