When assessing types of pumps for any fluid-handling system you have, then concentrate on the four crucial elements. The following listed general guidelines show when a positive displacement pump might be an excellent choice for you. Read on to know the guidelines.
- Fluid
Will the pump you eventually choose see viscosities that are greater than twenty centistokes, gas that is entrained or even have to deal with a liquid that happens to be sensitive to shear? If any of these is the case, then you should consider this type of pump. This is due to its amazing ability to handle fluids that feature truly high viscosity much more efficiently, i.e. with a lot lower yearly energy costs than that at which centrifugal pumps would be capable of handling such fluids.
- Discharge
Is pressure going to vary within your pumping system? If it will, then it’s also most ideal that you should consider this type of pump. This time, it will be considered for its fabulous ability to deliver an almost constant volume of fluid over the range of pressure. It is doubtful whether there’s any other pump that does this as well as this type of pump.
- Supply
Are conditions of supply going to be varied within your pumping system? If they will, then this is another reason why you should consider this powerful kind of pump. You should even go through the varying positive displacement pump types to choose the option that will best handle the variations in supply conditions within your system. You are choosing this type of pump here for its versatility in dealing with a truly wide range of different NPSHA (net positive suction head that’s available), ability to efficiently adjust speed, as well as fluid characteristics.
- Operating
Will your pumping system’s pressure or flow demands occasionally or even frequently change? You will need to consider this type of pump as well. It’s being considered here for its ability to immediately as well as efficiently respond to varied speed as well as pressure changes.
Choosing the most appropriate type of pump for your pumping system is quite crucial – but so too is making sure that the pump is most appropriately sized. Lots of professional engineers do not appreciate how important the appropriate sizing of a pump is thus, they size it only to meet the requirements of the application they are working on. It is quite common to oversize a pump, for instance, when you are anticipating expansions in the future. This only leads tosignificantly higher costs.
In conclusion, in making a final decision, as regards the best pump that will do the best possible job for your application, you should take out to consider reliability, efficiency, suitability, and maybe most crucially, the all-round cost of ownership. It appears as if the positive displacement pump ticks all boxes when it comes to these requirements. Remember, the initial cost of a pump might not amount to anything in comparison to the cost of maintenance and energy consumption through the course of its life. So, choose wisely.