Hydraulic filters broke down, we can perceive in question? So, ordinary filter what is the cause of failure of it? Simple analysis here today under the oil spill is what causes:
Hydraulic filter leaks mainly by the failure caused the seal. The reason the sealing member having a plurality of aspects of failure:
(1) In practical applications, improper installation is the main cause seal failure. Forcibly pressed into the assembly trimming and breakage caused by the sealing member, the sealing member having a directivity direction of anti-loaded, O-ring being squeezed and twisted, etc. will cause the seals to fail. Meanwhile, the installation should pay particular attention to the cleanliness of the seal when the sealing surface, especially in the working environment is a bad situation, when users open other reasons for the replacement filter cartridge, adhere to the sealing surface contaminants may cause seal failure. These require users to pay more attention during the installation process.
(2) seal material damage caused by chemical appears failure is very common. The main cause of damage to the seal is working chemical seal material selection hydraulic system is incompatible media, by the medium of an additive, hydrolysis and oxidation-reduction reactions caused by the chemical etching. Also, if the working medium of the hydraulic system deteriorate or deterioration, corrosion will seal. Chemical corrosion may cause the hydraulic filter seal lip interface off, weakening the seal hardness, excessive dilation or contraction resulting in damage to the seals.
(3) hydraulic system hydraulic fitting adapters temperature is too high or too low will accelerate the aging of rubber seals, hardening or deterioration, it lost sealing performance. Therefore, the choice of filter material to seal the working environment temperature adapt. In addition to the oil system itself, an external heat source will cause localized high temperature filters, such as the installation position of the filter near the external heat source, will accelerate the aging of rubber seals, the situation in steel mills and other external heat source more work environment particular attention.
Seen in this light, the oil spill caused hydraulic filter is above three reasons, so all manufacturers must pay attention, to carefully check the various parts, to prevent such leakage incidents.