Hydraulic Pilot Filter H28880 For 2093812470 Heavy Duty Truck

Hydraulic Pilot Filter H28880 Is Mainly Suitable For 2093812470 Heavy-Duty Truck Hydraulic Filter Components

Product Description:

The hydraulic pilot filter element is a filter located at the oil port of the pilot valve. Its main function is to filter the hydraulic oil in the hydraulic system, prevent impurities, particles, and other foreign objects from entering the interior of the pilot valve, and protect the pilot valve and other hydraulic components from damage. At the same time, the hydraulic pilot filter element can effectively extend the service life of the excavator hydraulic system and improve work efficiency.

The working principle of the pilot filter is relatively simple. When hydraulic oil flows from the oil tank into the hydraulic pilot filter, the pilot filter will filter out impurities, particles, and other foreign objects in the oil, making the hydraulic oil cleaner. In this way, hydraulic oil can flow smoothly into the pilot valve, thereby protecting the pilot valve and other hydraulic components from damage.

The hydraulic pilot filter element is one of the important components in the hydraulic system of excavators, which ensures the normal operation of the hydraulic system by filtering impurities, protecting hydraulic components, extending equipment life, and other functions. In order to ensure the good operation of the hydraulic system, we need to regularly replace the pilot filter element, pay attention to the quality of oil, and clean the hydraulic system regularly.

Features:

1. The pilot control system has extremely high requirements for oil cleanliness, so the filtration accuracy of the pilot filter element is usually between 3-10 μ m, and some precision applications even require 1-3 μ m, which is much higher than that of ordinary hydraulic return oil or suction filter elements to prevent particles from sticking to the precision valve core.

2. The pilot filter element is often installed in high-pressure pipelines and needs to withstand high system pressure (up to 21-35 MPa) and large pressure differentials. Some products are designed to withstand extreme pressure differentials of 42 MPa to ensure that they do not deform or break under high loads

3. Adopting high-strength skeleton (such as stainless steel mesh or 3D printed honeycomb matrix) and high-quality filter materials (such as glass fiber, synthetic fiber), with good axial stiffness and flattening stiffness, it is not easy to deform or collapse under impact load or alternating pressure, ensuring stable filtration accuracy
 

4. To avoid affecting the response speed of the pilot oil circuit, the filter element adopts a corrugated folding structure (usually with a pleat height of ≤ 20 mm) to increase the filtering area and reduce flow resistance. The initial pressure difference of some products can be controlled below 15 psi (about 0.1 MPa) to ensure rapid system response

5. The working temperature range is generally from -30 ℃ to+110 ℃, and some high-performance filter elements can withstand a high temperature of 135 ℃ for a short time, and are well compatible with commonly used hydraulic oils, phosphate hydraulic oils, water ethylene glycol and other media

6. Some high-end pilot filter elements are made of stainless steel material, with uniform pores and corrosion resistance. After cleaning, they can be reused to reduce replacement frequency; At the same time, it has good pollutant holding capacity, and the new three-dimensional fiber structure can increase the pollutant holding capacity by 30% -50%

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