| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressure tank for a pumping device restrained from water leakage and corrosion. SOLUTION: This pumping device is provided with a pump part provided with a rotatable impeller in a casing; a pressure tank for storing water pumped up by a pump; and a pressure switch for controlling the operation and stop of the pump part according to the water pressure of the pressure tank. The pressure tank has a bottomed metallic container with an upper opening, and an upper end plate made of a synthetic resin and connected to the container to block the upper opening of the container. The connection part of the upper end plate is provided above the storage water level in the pressure tank.</p> |
