... 220V/50Hz, it can operate continuously. 2. centrifugal pump use 20SG2.5-15G type tube centrifugal pump, rated power: 0.37KW, rotary speed: ... water tank : about 70L, stainless material, when start Irrigation pump valve and stop supply water, it may cause cavitation phenomenon ... control box, with switch indicator, work power meter, to display pump power. 8.Other: tube, valve, Structure is stainless, ...