0110D005BN/HC is suitable for hydraulic oil filter cartridges in construction machinery

The purpose and performance of hydraulic oil filter element

Hydraulic oil filter element is a mature product of Northern Filter Company, which has been supplied to major power plants multiple times with good quality feedback. Hydraulic oil filter element is used to protect specific components in hydraulic systems. It is installed upstream of the components that need to be protected in the medium pressure pipeline to filter out solid particles and gel like substances in the working medium, effectively control the pollution level of the working medium, and ensure the normal operation of the components. Hydraulic oil filter element is mainly made of stainless steel woven mesh, sintered mesh, and iron woven mesh. Due to the use of mainly fiberglass filter paper, synthetic fiber filter paper, and wood pulp filter paper as filter materials, it has the characteristics of high concentricity, high pressure resistance, good straightness, stainless steel material, and no burrs, ensuring a long service life. Its structure is made of single-layer or multi-layer metal mesh and filter material. The number of layers and mesh size of the mesh used in specific use depend on different usage conditions and purposes.

0110D005BN/HC is suitable for hydraulic oil filter cartridges in construction machinery

Filter performance:

1. The filter element has the advantages of convenient discharge, large circulation area, low pressure loss, simple structure, small volume, light weight, and uniform filtering material.

2. The compatibility of the filter element and filter material is suitable for filtering general hydraulic oil.

3. The filter element is supported by solid filter materials on both sides and stable filter materials, which comply with the verification of the flow fatigue characteristics of ISO3724/76 hydraulic filter elements.

0110D005BN/HC is suitable for hydraulic oil filter cartridges in construction machinery

Methods for cleaning or replacing the purification hydraulic oil filter element

The methods for cleaning or replacing hydraulic oil filters include coarse filters, ordinary filters, precision filters, and special precision filters, which can filter out impurities larger than 100 μ m, 10-100 μ m, 5-10 μ m, and 1-5 μ m according to their filtration accuracy (particle size for removing impurities).

When selecting an oil filter, the following points should be considered:

(1) The filtering accuracy should meet the predetermined requirements.

(2) Can maintain sufficient flow capacity for a long period of time.

(3) The filter core has sufficient strength and is not damaged by hydraulic pressure.

(4) The filter core has good corrosion resistance and can work continuously at the specified temperature.

(5) The filter core is easy to clean or replace.

2. The installation positions of oil filters in hydraulic systems are usually as follows:

(1) To be installed at the suction port of the pump:

A surface type oil filter is usually installed on the suction path of the pump to filter out larger impurities and particles to protect the hydraulic pump. In addition

The filtering capacity of the oil filter should be more than twice the pump flow rate, and the pressure loss should be less than 0.02 MPa.

(2) Installed on the outlet oil circuit of the pump:

The purpose of installing an oil filter here is to filter out pollutants that may enter components such as valves. Its filtration accuracy should be 10-15 μ m, and it should be able to withstand the working pressure and impact pressure on the oil circuit, with a pressure drop of less than 0.35 MPa. At the same time, a safety valve should be installed to prevent clogging of the oil filter.

(3) Installed on the return oil line of the system: This installation serves as an indirect filter. Usually, a back pressure valve is installed in parallel with the filter,

When the filter becomes clogged and reaches a certain pressure value, the back pressure valve opens.

(4) Installed on the system branch oil circuit.