HP Pump

Because of the higher density of water, it will require more HP than naptha, scaling directly with the density.

Whether it can be used with water will depend on the design of the pump, especially the materials as to whether they will corrode or not with water.

In addition, the lubricity of naptha, poor as it is, may be a factor when you want to use water, depending on pump design.

Dear friend

Generally,when we deal with different liquids using centrifugal pumps ,we have to consider the factor VISCOSITY !(which means the resistance to pouring).

So, we have to compare between the viscosity of the new liquid and that of the old one this will help us to decide correctly what to do.

If the new liquid has higher viscosity that means:

1-you need higher power(you have to ask the manufacturer for charts for such liquid).

2-If you have a mech.seal ,it will experince many problems.

3-The supports ( bearings or bushings)will subjected to higher radial forces.

4-There will be reduction in:capacity,head and efficiency.

5-If the old viscous liquid is used to lubricate or cooling the shaft,may you experience som troubles,you have to check with the manufacturer.

6-The rotating speed has to be reduced (may you need gearbox)

7-The pump performance curve will be different.

thanks

Aly