﻿﻿﻿﻿﻿ Pressure loss Pump Curve ﻿ ﻿
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# System curve and pump curvePump Curve 2

Define your pump curve in 5 steps
1. Upload your pump curve as .txt file if you saved it in the past from TECCINESS.
2. Enter title and medium. Choose between turbo-machine (centrifugal pump) and positive displacement pump.
3. Enter flow, head and power (optional) for at least two points of the pump curve. For positive displacement pumps often 2 points are sufficient since the pump curve can be nicely approached by a straight line.
4. If the pump is run with a variable frequency drive up to 3 frequencies can be evaluated. Pumps an series and in parallel can be simulated.

 Characteristic´s name Density kg/m³ note

Machine type

 > > > > > > > > > > > > > > > > > > > >  where known and relevant (centrifugal pump) < < < < < < < < < < < < < < < < < < < < Internal Diameter    Suction side mm Pressure side mm

 Means of Calculation
 Volume flow Discharge Head orDifferential pressure Power Approximation [m³/h] m bar [kW] 1. 2. y=cx+d 3. y=bx²+cx+d 4. y=ax³+bx²+cx+d

 One pump, evaluate at speed ratios   n1/n0=1, n2/n0 =    n3/n0 = 2 Pumps in parallel 2 Pumps in series 3 Pumps in parallel 4 Pumps in parallel 5 Pumps in parallel

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