| 摘要 |
The pump body casing has axially spaced bearings. One bearing acting as a thrust bearing. The delivery pressure is applied in opposite directions to the impeller. The impeller has an envelope/seal which presses on the pump casing between the suction and delivery orifice. The suction pressure can also be applied to the impeller in opposite vertical directions. The delivery pressure can also be applied in a vertical direction. |
