There are two kinds of submersible pumps. One is that the motor windings are directly immersed in the water, which drives the pump with a certain lift. One is that the motor is waterproof and sealed, and the inside is filled with insulating oil to drive the pump to pump water.

First, the use conditions of the submersible pump
1. The submersible pump should be completely immersed in water. In normal operation, the first stage impeller should be below 1 m of the moving water level, and the lower part of the motor should be no less than three meters from the bottom of the well.

2. The water temperature does not exceed +40 ° C, and the solid content (not more than 0.1% by mass) is not more than 0.2 mm. The pH of the water in the water is between 6.5 and 8.5.

3, power supply frequency 50HZ, voltage 380V three-phase AC power supply, the maximum voltage difference does not exceed plus or minus 10%

4. Select the corresponding submersible pump product model according to the caliper diameter and water level. The well should be installed in place and can be smoothly upgraded. The well must have sufficient water inflow (ie greater than the rated flow).

5. The submersible sewage pump must be used within the recommended lift.

Second, the submersible pump instructions
1. The motor must be filled with clean water before use, and the water injection and venting screw plugs should be tightened, otherwise it is not allowed to use.

2. The ground test run is not more than one second.

3. The electric pump is not allowed to be lying or tilted.

4. The motor must be completely submerged into the water, but the depth of the sneak is no more than 70 meters.

5. Lead and cable connectors are operated as specified.