Technical requirements for specialized circulating pumps for swimming pools
1) The sum of the capabilities of the circulating water pump should be greater than or equal to the operating head required for filtration and backwashing of the entire system.
2) Before the circulating water pump, a cleanable hair filter must be installed.
3) The circulating water pump and motor should be easy to inspect and maintain, and the design and construction of the water pump and its components should ensure safe operation.
4) The mechanical seal of the circulating water pump should be corrosion-resistant and able to work well in the operating environment of the swimming pool.
5) The external dimensions of the circulating water pump should be as compact as possible, and its electrical and mechanical structure should be suitable for general pool installation, load, and environmental conditions.
6) The water pump motor can operate at full load within a range of plus or minus 10% of the rated voltage.
7) All water pump motors should have thermal and current overload protection, set inside the motor or at the starting point of the circuit, providing locking rotation and operation protection.
8) The security protection level is IP55.
Article source: Baidu Baike excerpt

