When the oil separator core is clogged, it will cause excessive current in the air compressor motor. It is also possible that the oil separator core will deform due to excessive pressure. In mild cases, the motor will be overloaded; in severe cases, the main unit will seize up. In addition, excessive current can shorten the lifespan of the contactor or burn out the contacts, causing major accidents.
Generally, screw air compressors are equipped with a pressure gauge before the filter element. When the pressure difference between the pressure gauge before the filter element and the supply pressure gauge reaches 0.08MPa, the oil separator element needs to be replaced.