"220V Cooling Fan" in terms of fan blower means. Due to the low operating pressure of the fan, its total pressure not 1500mmH2O, so you can ignore the gas compress ability. Thus, the theoretical analysis and features fan, the gas movement can handle in compress able flow. This approximation makes the pass "220V Cooling Fan" fans and water pumps have a lot of similarities in the basic principles of structural components, parameter descriptions, performance changes and regulate working conditions, etc., relevant content in the pump has been discussed. However, due to differences in the physical properties of the fluid, so that "220V Cooling Fan" fans and pumps differ in some aspects of practical application, forming a fan of some of the features.