1. Check the connection between pump casing and motor
Loose connections or broken sealing will cause liquid leakage in the pump casing, which will cause the pump casing to heat up. At this time, the connections should be tightened to ensure a good seal.
2. Check the liquid flow in the pump casing
Insufficient liquid flow will cause vortex flow in the liquid in the pump casing, causing the pump casing to heat up. At this time, the liquid flow should be adjusted to ensure sufficient flow.
3. Check the liquid temperature in the pump casing
If the liquid temperature is too high, a cooling device should be added to reduce the liquid temperature.
4. Replace the pump casing material
The pump casing is made of poor material and has poor thermal conductivity, which will cause the pump casing to heat up. At this time, the pump casing should be replaced with a pump casing made of good material to improve the thermal conductivity.