Choose agricultural submersible pump should pay attention to three aspects

Agricultural, submersible pump is a kind of rural solve peasant household production and living water main water equipment, but because many of the submersible electric pump manufacturers, technical strength gap is bigger, the product quality. So if you want to choose a reliable quality and cheaper prices of submersible pump need to pay attention to the following aspects:

First, choose

As a user, generally by the limitations of professional knowledge, can not be sure which use and an expert in the field of what brand of water pump consulting; If lack of this person, do not prevent ask old pump units, especially for users close or similar to their conditions of use. Choose the pump manufacturer, it is recommended that the priority to purchase water filling type submersible pumps, pump when first to see the brand and product certification, don't buy "3 without" product, namely no manufacturer, production date, production license. Otherwise there is a problem, the user will do. At the same time, should according to the local power supply situation to determine single-phase or three-phase pump.

Second, determine

Select the key is to determine the pump submersible pump nameplate on the head is close to, can use economic, to achieve the highest efficiency. But not require absolute equal, general deviation less than 20% can be compared under the condition of energy conservation work.

Third, check the quality

Submersible electric pump motor has a water filling type, oil filled type and block type structure, a water filling type most widely used. The two injection hole bolt all shake, a water injection (no water), another discharge air, need to wait for 15 minutes after water injection, such as motor chamber air all add water after discharge, until filled with water before the two water injection to tighten bolts. The motor in the sealing state. Motor after water filling, winding work in water, but the motor insulation measurement, measuring insulation resistance must use megohmmeter shaking table, not using the multimeter, because the multimeter range is limited, for winding and the insulation resistance test is not clear. Qualified insulation, on the bolt, the pump can be energizing test run within the pool, but not for a long time, no conditions to do idling in inoue, but not more than 2 ~ 3 seconds time.