Electric butterfly valve dn150 actuator - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Electric butterfly valve dn150 actuator

Electric butterfly valve dn150 actuator

What are the causes of pump vibration
1. The manufacturing process of the water pump is not up to standard: the rotor is unbalanced; The pump and motor shafts are not concentric; Collision or friction between rotor and stator;
2. Due to long service time, the water pump is worn and aged: the impeller is loose; Bearing damage or large bearing clearance;
3. There are sundries in the water pump inlet pipe, impeller and pump; The water pump is not fixed firmly with the foundation, and resonance strengthening phenomenon occurs;
4. When the water pump is working to promote the water flow, the accompanying vortex and cavitation will inevitably produce vibration

 Electric butterfly valve dn150

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