Hydraulic filtration tanks


The hydraulic filtration tanks is an important component used to filter oil in the hydraulic system, and its main function is to remove impurities and particles in the oil and maintain the cleanliness and stability of the hydraulic system. The following is a detailed introduction to the hydraulic filtration tanks :

First, the structure of the composition

The hydraulic filtration tanks is usually composed of a box, a filter element or screen, and an inlet and outlet pipeline. Among them, the filter element or strainer is the filter medium, which is responsible for intercepting impurities and particles in the oil.

Second, the type of filter element

There are many types of filters in hydraulic filtration tanks, including magnetic, sintered, line-gap, and paper-based filters.

1. Magnetic filter: use the adsorption of magnets to remove iron impurities in the oil.

2. Sintered filter element: It is made of granular metal powder through high-temperature surface melting and bonding, which has high strength and impact resistance, but the cost is high.

3. Linear gap filter element: made of copper wire or aluminum wire tightly wound on the cylindrical skeleton, with simple structure and large flux, it is mostly used for oil return filtration.

4. Paper filter element: the structure is similar to the line gap type, but the filter material is filter paper, the accuracy can reach 5~30 microns, the working pressure is 32MPa, the structure is compact, but it cannot be cleaned and needs to be replaced frequently.

Third, Filtration principle

The filtration principle of the hydraulic filtration tanks usually includes two processes: coarse filtration and fine filtration. The oil enters the filter from the inlet, where larger solids are retained and clean oil flows out through the pores of the filter or screen. After coarse filtration, the oil then enters the fine filter, and the fine particles are blocked on the filter paper through a finer filter medium (such as filter paper), and the clean oil flows out through the filter paper.

Fourth, Maintenance and replacement

As the filtration process progresses, impurities accumulate on the filter element or screen. When impurities accumulate to a certain extent, it is necessary to clean or replace the filter element/screen/filter paper to maintain the normal operation of the filter. The specific maintenance and replacement intervals should be determined according to the actual application and working environment.

Fifth, Role and importance

Hydraulic filtration tanks play a vital role in the hydraulic system. By filtering impurities and particulates from the oil, the hydraulic filtration tanks can protect the hydraulic system from contamination and wear, improving the reliability and stability of the system. At the same time, keeping the fluid clean can also extend the life of the hydraulic system and reduce maintenance costs.


parker hydraulic filter catalog pdf

parker hydraulic filter system

parker hydraulic filtration system


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