1. Corrosion-resistant magnetic pump impeller. Whether the dynamic and static balance is qualified.
2. Coupling. Whether the bolt spacing is good.
3. The elastic pin and the elastic ferrule should not be too tight;
4. Whether the fit between the inner hole of the coupling and the shaft is too loose, if it is too loose, you can use methods such as spraying to reduce the inner diameter of the coupling until it reaches the size required for transition fit, and then fix the coupling on the shaft superior.
5. Clearance and wearing parts.
Ensure that the bearing clearance of the corrosion-resistant magnetic pump motor is appropriate; properly adjust the clearance between the impeller and the volute; regularly check and replace the impeller port ring, pump body port ring, interstage bushing, diaphragm bushing and other easy-to-wear parts.
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