There are two submersible pumps, one is the motor winding directly immersed in the water, driven by a certain pump head work. One is the motor is airtight, internal filled with insulating oil, pump driven by the water. First, the submersible pump conditions of use 1, the submersible pump should be fully immersed in the water work, the first stage impeller should be located in the normal working level of 1 meter below the motor from the bottom of the bottom of not less than three meters. 2, the water temperature does not exceed +40 ℃, the solid content (not more than 0.1% by mass) particle diameter of not more than 0.2mm. PH value of water between pH 6.5-8.5. 3, the power frequency 50HZ, voltage 380V three-phase AC power supply, the maximum voltage difference does not exceed plus or minus 10% 4, according to the diameter and water level selection of the corresponding submersible pump product model. Well should be upright to be installed in place, and can be successfully promoted subject to well should be sufficient inflow (ie greater than the rated flow). 5, Submersible sewage pump to be used within the recommended lift, Second, the submersible pump instructions 1, the motor must be filled with water before use, tighten the water, bleed plug, otherwise not allowed to use. 2, land commissioning power not more than one second. 3, the pump is not allowed to lie or tilt. 4, the motor must be fully dive into the water, but the depth of infiltration is not more than 70 meters. 5, lead and cable connector according to the provisions of the operation.
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