| 摘要 |
PURPOSE:To remarkably simplify the maintenance of a water-service installation, by connecting the upper part of an air supply tank to a pressure tank through a check valve, and mounting a mounting device of a water level detecting means, which is provided with the water level detecting means, to the lower part of the air supply tank, so as to be freely attachable and detachable. CONSTITUTION:A pressure tank for storing high pressurized water in a water feeding pipe to which water is fed by a pump 1 is connected to this water- service installation, on which an air supply tank 4 provided with an air intake valve 8 is provided. The lower part of this air supply tank 4 is connected to the suction side of a jet pump 1, the driving inflow side of the pump 1 is connected to a high pressurized water source, and the discharge side of the jet pump is connected to a low pressurized water source through an automatic stop valve 6. The upper part of the air supply tank 4 is connected to the pressure tank 2 through a check valve 9, and to the lower part of the air supply tank 4, a mounting device 17 of a water level detecting means, which is provided with the water level detecting means 16 is mounted so as to be freely attachable and detachable. |
