kubota bx25d hydraulic filter,kubota m9000 hydraulic filter,kubota l2900 hydraulic filter

The hydraulic filter is mainly to filter various impurities in the hydraulic system. The main sources are mechanical impurities still remaining in the hydraulic system after cleaning, such as scale, casting sand, welding slag, iron filings, paint, paint skin and cotton yarn scraps. Today, we will introduce it to you from two aspects.

Possible problems and solutions of hydraulic filters

The common faults of hydraulic filters are described as follows:

✔️Often clogged

Hydraulic filter leaks are caused by seal failure. Reasons for seal failure are:

In practical applications, improper installation is the main cause of seal failure. Forcibly pressing in during assembly will cause the seal to be trimmed and damaged, the direction of the directional seal to be reversed, and the O-ring to be squeezed out and twisted, which will cause the seal to fail.

Reasons:

• The oil is too dirty;
• The filtration precision of the selection is too small;

✔️The filtering effect is not good enough, and the hydraulic system is damaged

It is also very common for seal materials to fail due to chemical damage. The reason for the chemical damage of the seal is that the selected seal material is incompatible with the working medium of the hydraulic system, and the chemical corrosion caused by the additives in the medium, hydrolysis and redox reaction, etc. If the working medium of the hydraulic system deteriorates or deteriorates.

Reasons:

• The filtering precision is too large;
• The filter is damaged;

✔️The pressure difference of the hydraulic filter is relatively high

Reason:

• It is time to clean or replace the filter element.

How to properly install a hydraulic filter?

1. It should be installed at the suction port of the pump: a surface hydraulic filter is generally installed on the suction road of the pump to filter out large impurity particles to protect the hydraulic pump. In addition, the filtration capacity of the hydraulic filter should be the pump flow rate. more than twice, the pressure loss is less than 0.02MPa.

1. Installed on the oil return road of the system: This installation acts as an indirect filter. Generally, a back pressure valve is installed in parallel with the hydraulic filter. When the hydraulic filter is blocked and reaches a certain pressure value, the back pressure valve is opened.

1. Separate filtration system: A hydraulic pump and hydraulic filter can be specially designed for large hydraulic system to form an independent filtration circuit.

1. Installed on the outlet oil road of the pump: Our company mainly deals in power units, multi-way valves and other products. The purpose of installing hydraulic filters here is to filter out pollutants that may invade valves and other components. The filtration precision should be 10-15μm, and it can withstand the working pressure and impact pressure on the oil circuit, and the pressure drop should be less than 0.35MPa. At the same time, a safety valve should be installed to prevent the hydraulic filter from clogging.

1. Installed on the branch oil circuit of the system.

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