Fountain pump selection methods and steps

When choosing fountain pump, everyone annoyed fountain pump how should choose? Today, in order to better solve your problems, good mechanical and electrical introduce fountain pump selection method and procedure for you.

Fountain pump selection method and steps of:

1. List the basic data

A, medium physical properties: name of medium, transmission under the condition of specific gravity, viscosity, corrosion, etc.

B, medium containing solid particles size and content.

C, operating conditions: temperature; Discharge pressure (suction side pressure equipment, lateral pressure equipment, lateral discharge piping pressure drop); Traffic (normal, minimum and maximum).

D, the pump location situation: the environment temperature; The altitude; Pipe flat, elevation requirements; Lateral inlet and discharge equipment liquid surface to pump center distance and the equivalent length, etc.

2, determine the flow and head

A, traffic: when the pump is chosen should be taken into account by the maximum flow; If only the normal flow, should according to the device and technology process of using the safety factor of 1.1. Referred to in the above is the volume flow.

B and head (or pressure difference) : according to the arrangement of the pump, using Bernoulli equation and the pump lift.

3, choose the pump type and the specific type of pump

According to the characteristic of medium, the capacity and head of the identified, and the selection principle and the working range of the pump to select the suitable type of pump. Again from the samples and specification of pump manufacturers choose the specific model of the pump, and lists the types and with water as a benchmark of performance parameters.

4, accounting performance of the pump

According to the actual situation of pump performance accounting. List after accounting performance parameters, such as conform to the requirements of the process, the selected pump is available. When necessary, can be drawn after accounting performance curve and piping system performance curves, to determine the working point of the pump.

5, determine the geometric installation height of pump

6, calculation of pump shaft power

7, selected materials and shaft seal of pump

8, determine the cooling or heating steam consumption

9, the selection of motor

10, to determine the pump standby rate and the Numbers

The above is the fountain pump selection methods and steps, hope will be helpful to you. If you have any questions, can contact us directly.