1. The basic data in the open pump:
Including: the characteristics of the media, the media containing the particle diameter of the particle, the amount of content, the media temperature, the required flow pressure piping system data
2. Determine the flow head
A,.Ithe production process has been given the minimum, normal, maximum flow, should be considered by the maximum flow.
B. If the production process is only given normal flow, should be considered to have a certain margin.
For ns>100 high flow low does not lift pump, flow margin 5%, the ns<50 small flow rate uplift and pump, flow margin take 10%, 50 is less than or equal to NS is less than or equal to 100 pump, flow margin is 5% and the quality poor and bad conditions of pump, flow margin should take 10%.
C. If the basic data only to the weight of the flow, should be converted into volume flow.
