1. List the basic data of the split case pump:
Including: the characteristics of the medium, the particle diameter of the body, the content of the medium, the temperature of the medium, the required flow rate and working pressure, the piping system data
2. Determine the flow:
a. If the minimum, normal, and maximum flow rates have been given in the production process, the maximum flow rate should be considered.
b. If only normal flow is given in the production process, consideration should be given to leaving a certain margin.
For the large flow rate of ns>100, the pump is not intended to be lifted, the flow balance is 5%, the pump with a small flow rate of ns<50 and the pump, the flow balance is 10%, the pump with 50≤ns≤100, the flow allowance is also Take 5%. For pumps with poor quality and poor operating conditions, the flow balance should be 10%.
c. If the basic data only gives weight flow, it should be converted into volume flow.
