| 摘要 |
A water pressurizing pump includes an accumulator, a control valve device, a valve device, a pressure switch, and a motor. When the piping system is open and a water pressure in the accumulator is above a value, water flows from the accumulator into the piping system. When the piping system is open and the water pressure in the accumulator is below the value, the motor is turned on to pump water to the piping system. Water could not enter the accumulator to maintain the water pressure in the accumulator in a stable low-pressure state. When the piping system is closed and the water pressure in the accumulator is below the value, the motor is turned on to pump water into the accumulator.
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