| 摘要 |
PROBLEM TO BE SOLVED: To provide a well pump capable of releasing heat staying inside a tank cover to the outside.SOLUTION: A well pump is equipped with: a pressure tank 1; a pump installing portion 2 provided above the pressure tank 1; and a resinous tank cover 3 provided with an opening portion for covering the pump installing portion 2. The tank cover 3 is fixed on an upper part of the pressure tank 1, while a fixed clearance 7 is held between a lower end portion of the tank cover 3 and the pressure tank 1, by a metal fitting 6 welded to the pressure tank 1. Therefore, even in a structure which has no opening on the tank cover 3 other than the opening portion for covering the pump device portion 2 and a wiring taking-out slit, by using the resinous tank cover 3 requiring a comparatively inexpensive production cost, heat staying inside the tank cover 3 can be released to the outside.SELECTED DRAWING: Figure 1 |
