Water jet vacuum problem
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When the water-jet vacuum system starts operating, the vacuum level can reach -0.94; after half an hour, the vacuum level begins to drop, and the motor temperature is high. The system is well-sealed – what could be the reason?
Has the temperature of the working fluid increased?
Also, check whether there are bubbles in the working fluid as it enters the pump.
The small pump has a flow rate of 180 liters per second; the water temperature does not rise. Also, after draining the buffer tank, it doesn’t take long before a large amount of water accumulates again
You resolved the issue of water accumulating in the buffer tank, so the vacuum level should have increased
The motor heats up after working for a long time due to reduced operation
The motor might be too small, resulting in high temperatures under heavy load, or there could be a problem with the motor itself; it needs to be repaired.