SPP100 is serves irrigation of the gardening field, oxygen increase to the aquarium and drainage for general places.
SPP120, SPP250&SPP370 is widely used for transferring seawater, liquid medicine beverage milk and those corrosive liquid whose physical characteristic is similar as water.
The depth for the electrical pump below the water is no more than 5m
The temperature of the water is no higher of 40°C
The PH figure of the water is between 6.5-8.5
The grain diameter of the solids in the water is no bigger than 0.2mm