The hydraulic oil return oil filter element is mainly used for filtering the oil in the hydraulic system, and is installed in the filter and oil filter in the hydraulic system.
Material: stainless steel braided net, sintered net, iron braided net, filter material: glass fiber filter paper, chemical fiber filter paper, wood pulp filter paper characteristics:
Made of single or multi-layer metal mesh and filter material, the number of layers and mesh of wire mesh according to different use conditions and purposes, high concentric rate, pressure, good straightness, stainless steel material, without any burrs. Industrial application in crude oil filtration, fine filtration in the distillation, absorption, evaporation, filtration and other processes, there are various models and specifications, installation and replacement; Small initial pressure difference and long cleaning cycle.
According to the installation position in the hydraulic system, the hydraulic oil filter element is divided into oil filter element of suction pipeline, oil filter element of pressure pipeline and oil filter element of return pipeline. Oil suction line hydraulic filter element: oil suction line (oil tank-inlet of hydraulic pump) or directly installing oil suction filter element in oil tank is a necessary measure to protect hydraulic pump, excessive flow resistance leads to cavitation of hydraulic pump. Pressure line hydraulic oil filter element: pressure line oil filter element, not only is the protection of its downstream components, as to ensure the system oil pollution of the main oil filter, through its own oil purification, it also plays a very good protection function to the hydraulic pump, the pressure of the filter is big, the vibration is also very strong, the allowable pressure difference of the oil filter element of the pressure pipeline, according to the different pressure level, the range is 0.3 ~ 0.7 mpa.
Hydraulic oil filter element of oil return pipeline: all kinds of dirt such as abrasive particles produced by various components in the working process can be intercepted by setting oil filter of oil return pipeline to avoid returning to the oil tank and being sucked in by hydraulic pump again. The allowable differential pressure of oil filter in oil return pipeline ranges from 0.3 mpa to 0.5 mpa according to different pressure levels. The accuracy is determined according to the requirement of oil contamination degree. There are more factors to consider in setting the oil filter in the return line, one of which is hydraulic shock, especially when there are hydraulic cylinders and proportional valves upstream, under high pressure, both the reversing of hydraulic cylinder and the sudden power failure of proportional valve will produce a large instantaneous flow impact, which will cause great harm to the filter element of oil filter, strengthen structurally. It is mainly used in petrochemical industry, oil field pipeline filtration, fuel oil filtration of refueling equipment, construction machinery equipment, water treatment equipment filtration, pharmaceutical and food processing fields.
