We have a system with a centrifugal pump with only one speed which means one H-Q curve . Now the system flow rate needs changes in 3 modes . I=mode 1 it needs Q=10 m3/h and H= 3 bars , mode 2 it needs Q=15 m3/h and H= 3.2 bars , mode 3 it needs Q = 20m3/h and Q=3.4 bars .. WE will install a control valve with three different openings to achieve the 3 different modes by changing pressure drop so moves the system curve,, but does a pump will be capable of producing this different heads and flows at every valve position ? How things goes in such a situation and how to deal with CV and pump suppliers
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
When making CNC machined parts, mastering tolerances can be challenging. Are general tolerances good enough? When does it make sense to call out for tighter tolerances? Do you need a better understanding of fits, datums, or GD&T? Learn about these topics and more in Xometry's new e-book. Download Now
When designing a metal component, engineers have to consider how susceptible certain alloys are to corrosion in the final product’s operating environment. In a recent study by NACE (National Association of Corrosion Engineers), it was estimated that the direct and indirect costs of corrosion in the United States is approximately 6.2% of the GDP. In 2016, that cost exceeded $1 trillion dollars for the first time. Download Now
With all of the hype around 3D printing, it can be easy to get lost in fascinating, intricate metal parts made with additive manufacturing. These parts, while impressive, are probably dissimilar from many of the parts you currently produce or use. So why invest in metal additive manufacturing? Download Now