Help! How to understand this: For return pipes that are in operation continuously for long periods of time, they should not be connected to the pump inlet; instead, they should be connected to the pump’s suction vessel.
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How to understand 5.0.2.2 in 20570.5: \"For return pipes used in long-term continuous operation, they should not be connected to the pump inlet; instead, they should be connected to the pump’s suction vessel.\" ” Is it because if connected to the pump inlet, the pressure at the pump inlet will keep increasing, thereby exceeding the pump’s maximum shut-off pressure?
The so-called return pipeline for long-term continuous operation generally refers to the pump’s return line; if it is connected to the pump inlet, it may lead to a situation where the pump delivers fluid at a low flow rate while returning fluid at a high flow rate. As a result, the temperature of the fluid inside the pump rises, increasing the risk of cavitation that can damage the pump