The oil filter element is mainly used for the filtration of oil in the hydraulic system and is installed in the filter and oil filter in the hydraulic system.
In the oil circuit of the hydraulic system, it is used to remove the metal powder and other mechanical impurities worn by the components in the hydraulic system to keep the oil circuit clean and prolong the life of the hydraulic system; the low-pressure series filter element is also equipped with a bypass valve. When the filter element is not replaced in time, the bypass valve can be automatically opened to ensure the normal operation of the system.
Main parameters and features
Material: stainless steel woven mesh, sintered mesh, iron woven mesh;
Filter material: glass fiber filter paper, chemical fiber filter paper, wood pulp filter paper;
Features: It is made of single-layer or multi-layer metal mesh and filter material. The number of layers and the mesh number of the mesh are determined according to different use conditions and uses. The concentricity is high, the pressure is high, and the straightness is good. Without any burrs, it guarantees a long service life.
It is industrially used in the distillation, absorption, evaporation, filtration and other processes of crude oil filtration and fine filtration of lubricating oil and fuel. There are various models and specifications, installation and replacement; convenient and quick, with small initial pressure difference and long cleaning cycle
Classification and scope of application
According to the installation position in the hydraulic system, the hydraulic oil filter element is divided into the oil filter element of the suction line, the oil filter element of the pressure line and the oil filter element of the return line.
Oil suction line hydraulic oil filter element: oil suction line (oil tank - hydraulic pump inlet) or directly installing oil suction filter element in the oil tank is a necessary measure to protect the hydraulic pump. It is determined that the flow resistance is too large to cause cavitation in the hydraulic pump.
Pressure line hydraulic oil filter element: The pressure line oil filter element is not only to protect its downstream components, but also as the main oil filter to ensure the pollution degree of the oil in the system. It also plays a good role in the hydraulic pump through its efficient purification of the oil. The filtration precision is 5-10μm, the pressure of the filter is large, and the vibration is also very beneficial. The allowable pressure difference of the oil filter element in the pressure pipeline ranges from 0.3 to 0.7MPa according to different pressure levels. As a pressure line oil filter for ground equipment, the cost and installation space are considered comprehensively.
Oil return line hydraulic oil filter element: All kinds of dirt such as abrasive particles generated by various components in the working process can be intercepted by setting the oil return line oil filter to avoid returning to the oil tank and being sucked by the hydraulic pump again. Oil return line The allowable pressure difference of the road oil filter, according to different pressure levels, ranges from 0.3 to 0.5MPa. The accuracy is determined according to the requirements of the oil contamination degree. There are more factors to be considered in the setting of the oil filter in the return line. One of the important factors is the hydraulic shock, especially when there are hydraulic cylinders and proportional valves upstream, the reversing of the hydraulic cylinders and the sudden change of the proportional valve under high pressure. Power failure will produce a large instantaneous flow impact, which will cause great damage to the filter element of the oil filter. When designing and selecting the oil filter for the return line, you must have a full understanding and strengthen it in structure. Mainly suitable for petrochemical, oil field pipeline filtration; fuel oil filtration of fueling equipment, construction machinery and equipment; equipment filtration of water treatment industry; pharmaceutical and food processing fields
Precautions
When choosing an oil filter, consider the following points:
(1) The filtration precision should meet the predetermined requirements.
(2) Sufficient flow capacity can be maintained for a long time.
(3) The filter core has sufficient strength and will not be damaged by the action of hydraulic pressure.
(4) The filter core has good corrosion resistance and can work for a long time at the specified temperature.
(5) The filter core is easy to clean or replace.
Therefore, the oil filter should be selected according to the technical requirements of the hydraulic system, according to the filtering accuracy, flow capacity, working pressure, oil viscosity, working temperature and other conditions.
Case
One Singapore client has ordered 10 pcs oil filter element 01.E 950.10VG.10.S.P, order 1000 pieces after testing, The market response is very good. Will order again.