The filter has an automatic alarm when the filter pollutants in the self-styled magnetic oil filter clogged filter internal pressure reaches empty .018 MPa, automatic alarm will send a signal to the filter should be replaced or clean the filter, in order to avoid the pump suction waited in vain for the failure of the CFF / CFFA series of self-sealing suction filter with manual self-sealing valve replacement filter cartridge, filter self-styled valve should be closed so that the oil tank does not flow out, keep in mind when installing filter should be immersed in the oil below the surface, the self-styled valve is not fully open, do not start the pump, otherwise it will cause the pump suction air phenomenon. The CFFA self-sealing magnetic oil filter 80 ~ 180μ CFFA filter 80 to 180μ CFFA-250 × ※ CFFAX, 250 × ※ CFFA-510 × of ※ CFFAX-510 × ※ CFFA-515 × * CFFAX-515 × * CFFA-520 × ※ CFFAX-520 × ※ Tips: The above model is part of the company, if any needs, please contact the company! CFF self-styled magnetic suction filter 80 to 180μ CFF filter 80 to 180μ CFF-510 × * FX-510 × ※ CFF -515 × ※ FX-515 × ※ CFF-520 × ※ FX-520 × ※ Tips: The above model is part of our products, if demand, please contact with the company!