D curves
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Curves for the D range of Centrifugal pumps - flooded suction

 

Please select the appropriate PDF file from the table below.

  Note: all these curves are 2900 rpm, 50 Hz Go to 60 Hz curves 

PDF file

Model

Typical flow 

Max head

Version

File size

Overview - current D range of flooded suction pumps, ie D121 / D5A

P25curve.pdf 25mm (1") eye 1 - 6.5 m3/h   Iss 1, 11/10 48 kB
P40curve.pdf 40mm (1.5") eye 3.5 - 20 m3/h   Iss 3, 11/10 50 kB
P50curve.pdf 50mm (2") eye 15 - 30 m3/h    Iss 3, 11/10 48 kB
P65curve.pdf 65mm (2.5") eye 25 - 45 m3/h   Iss 1, 11/10 45 kB
P80curve.pdf 80mm (3") eye 40 - 65 m3/h   Iss 2, 11/10 46 kB
P100curv.pdf 100mm (4") eye 55 - 120 m3/h   Iss 1, 11/10 46 kB
 contact MDM 125 - 200mm (5" - 8") eye 110 - 450 m3/h      

Overview - previous D range of flooded suction pumps, ie D2 / D2W / D3 / D4 / D6A

D40curve.pdf 40mm (1.5") eye 5 - 20 m3/h   Iss 2, 07/06 61 kB
D50curve.pdf 50mm (2") eye 15 - 30 m3/h    Iss 2, 07/06 65 kB
D80curve.pdf 80mm (3") eye 25 - 65 m3/h   Iss 2, 07/06 63 kB
 contact MDM 100mm+ (4"+) eye 60 - 360 m3/h      

Specific models (current D range)

25D121.pdf 25D121 1 - 6.5 m3/h 17 m Iss 3, 10/10 94 kB
40D121.pdf 40D121 3.5 - 20 m3/h 20 m Iss 1, 12/07 92 kB
50D121.pdf 50D121 15 - 30 m3/h  20 m Iss 1, 12/07 92 kB
2D5A.pdf 2"D5A " 152 m Iss 1, 12/10 89 kB
65D121.pdf 65D121 25 - 45 m3/h  16 m Iss 2, 07/10 95 kB
3D5A.pdf 3"D5A 40 - 65 m3/h 156 m Iss 1, 12/10 92 kB
4D5A.pdf 4"D5A 55 - 120 m3/h 135 m Iss 1, 12/10 92 kB

Current range of pumps                        H & CH pumps

 

The curves show the pressure (m head) against flow (m3/h) for water at 20oC and for a pump operating at 2 pole speed (2900 rpm with a 50 Hz supply).

They therefore apply to any fluid which is similar to water and has a viscosity of 1 cP and a specific gravity of 1.

For Air Separator 'AS' pumps and flooded suction pumps operating at other speeds, viscosities and specific gravities please contact MDM

Curves are approximate and are subject to change without notice.

The files are in Adobe PDF format. Visit the Adobe website if you need to download the Adobe Acrobat reader (freeware).