Pay attention when choose submersible pump

Submersible pumps can often be seen in rural areas, which is an important water lifting tool for their livelihoods and farmers’ production. Now on the market regardless of what products are many types, are different technologies and manufacturers, so choose the submersible pump is also pay attention to.
First check the quality of the submersible pump, submersible pump motor has many forms, the use of the motor should be in a sealed state, after the water, the measurement of the motor insulation resistance is qualified, and then the pump to detect Try to test whether the motor is running. Secondly, because the farmers friends are limited by the professional knowledge, not sure the kind of manufacturers and brands of submersible pumps is good. This is the best situation before the purchase of consult the use of submersible pump users or experts in this area, in the choice, to recognize the manufacturer, see the brand and the product of the certificate, do not buy no manufacturers no date No license of the “three no” products, if there is a problem, I will not know who to go to the theory.
Submersible pump is the final to determine its flow and the pump head and other important parameters, the user needs to choose the best lift with the pump name plate on the way, so that the use of affordable, the efficiency can reach the highest. If you choose the pump head is too small, low-lift pump for high-lift work, even if the pumping water, the water will be very small; but the lift is too large, there will be too much traffic, motor overload phenomenon. If it is overload for too long, it will cause the insulation age, and the situation will burn the motor.