The basis for purchasing corrosion-resistant pumps is as follows:
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1. Make the type and performance of the selected corrosion-resistant pump meet the requirements of process parameters such as device flow, head, pressure, temperature, cavitation allowance, suction stroke, etc.
2. must meet the requirements of medium characteristics
For pumps that transport flammable, explosive, toxic or valuable media, reliable shaft seals or non-leakage pumps are required, such as magnetic drive pumps (no shaft seal, isolated magnetic indirect drive)
For pumps that transport corrosive media, the convection parts are required to use corrosion-resistant materials, such as fluoroplastics corrosion-resistant pumps
For pumps that convey solid particles, the convection parts are required to be made of wear-resistant materials, and the shaft seal should be flushed with clean liquid when necessary.
3. The mechanical aspect requires high reliability, low noise and low vibration.
4. Correctly calculate the input cost of the purchase of corrosion-resistant pumps.