(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.
1)Q: Are you a factory or a trading company? A: Pump manufacturer. 2)Q: How about your quality? A: We arrange the prodcution quality according to customers' request. 3)Q: What are your payment terms? A: 30% payment bu T/T in advance, the rest when the goods finished. 4)Q: How about the packing of this model? A: Standard export wooden box. 5)Q: About customers response? A: Always become repeat customers. 6)Q: How about the Quality warranty A: 12 months after receiving.
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