EFF model with four network in secondary filter core, cooling water flow from the internal to the external network core network core, impurity contamination accumulation within the network core, when the network core inside and outside differential pressure is greater than a certain value, each operation valve plate rotate 90 ° Angle, cut into the cooling water inside the core network, open the outlet at the same time, at this point, the (single) core network outside of the cooling water flow to the inside network core, impurities dirt by discharge outlet. After cleaning the mesh core in turn, return to normal operation.

EFF type secondary filter contour scale
单位：mm