| 摘要 |
PROBLEM TO BE SOLVED: To provide a submerged pump device provided with a non-clog type impeller capable of appropriately coping with requested delivery quantity without preparing many impellers of different sizes and effectively utilizing an existing control board. SOLUTION: This submerged pump device 1 is provided with an inverter control circuit 50 connected to a commercial alternating current power supply AC via electric power line SL, and a non clog type submerged pump driven by the inverter control circuit 50, and has a casing 40 receiving the inverter control circuit 50 attached on a pump casing 21 or near the pump casing 21. The inverter control circuit 50 is provided with an adjustment circuit 55 initially adjusting rotation speed of the submerged pump is provided. COPYRIGHT: (C)2010,JPO&INPIT
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