Sorry for the confusion. What Pierreick is asking is really outside the scope of my original question. I really just wanted to know how a backpressure valve affects the TDH required of the pump to operate on its curve. Because due to the elevation difference, at average flow my pump is not...
Sorry it was the weekend and I didn't have time to reply. Thank you for the input. I will try and clarify the system. I will try to bullet point the main points.
- I can gravity flow, but do not want to due to the length of the pipeline and the source of the water. This is wastewater containing...
I'm designing a pumping system where I have a large variance in flow and the starting Elevaiton is higher than my end elevation. So at low flow, I would not stay on the pump curve. However, at the peak flow, I am on the curve due to line losses. I'm considering installing a backpressure valve on...