Water pump QJG series

electricsubmersibleimpeller

QJG High Lift Submersible Pump widely used in farmland irrigation, spray irrigation and water-use, industrial and civil buildings, mountain diversion and in low-lying areas dunes, urban and rural mining supply, drainage and other water conservancy facilities. QJG High Lift Submersible Pump Material: Impeller: Cast iron HT200,or stainless steel Pump bowl: Cast iron HT200,or stainless steel,such as ss304 ss316 Pump shaft : Cold-drawn steel with chrome plating,or stainless steel ss304 ss316 Motor Seal: Rubber O-ring seal,mechanical seal Motor regulating sleeve: rubber QJG High Lift Submersible Pump Using condition: (1). 380V voltage deviation is no more than ±5%,frequency is 50HZ, three -phase power deviation is no more than ±1%. (2). Motor cavity must be filled with water. (3). The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level. (4). The distance from the motor bottom to well bottom must be more than 3m. (5). Water temperature should be no more than 20°C. (6). Sand content of the water ( by mass) should be no more than 0.01%. (7). PH value of water 6.5-8.5. (8). Hydrogen sulfide content of the water should be no more than 1.5mg/L. (9). Chloride ion content of the water should be no more than 400mg/L. (10). Water yield of water source should ensure the requirements of pump continuous working.