| 摘要 |
Provided is a pneumatic pump system that discharges water inside a sump, the system including: a supply portion supplying air; a limit switch outputting air, supplied by the supply portion, to a first port as one of the first port and a second port when water inside the sump rises above a first predetermined water level; a timer resetting a predetermined amount of time by using air, output from the first port and supplied to a reset port, and waiting for driving of the predetermined amount of time; an air valve being open and allowing air, supplied by the supply portion, to pass through the air valve when air output from the first port is supplied to the air valve; and an pump driven by air that passes through the air valve and pumping water inside the sump. |
