| 摘要 |
<p>The present invention relates to a vertical, self-priming centrifugal pump located under a protective slab comprising a fixed bowl welded to the intake and delivery pipework and movable fittings removable through the top, characterised in that the hydraulic section comprises a wheel 13 with radial vanes driven by an engine shaft, that the said wheel turns between a bottom plate 14 provided with an intake hole and an upper bulkhead 20 hollowed out on the wheel side, an oval recess 23 ending in a hole 21 allowing the liquid to flow out. <IMAGE></p> |
