Suction Heights; Media With A Viscosity Similar To Water - Grundfos DMX 221 Manual De Instrucciones

3.4 Suction heights

3.4.1 Media with a viscosity similar to water

Applies to:
• counterpressure of 1.5 to 3 bar
• non-degassing and non-abrasive media
• temperature of 20 °C
• stroke length 100 %.
Pump type
Suction height*
[mWC]
DMX 4-10 4
DMX 7-10 4
DMX 9-10 3
DMX 12-10 3
DMX 17-4 1
DMX 25-3 1
DMX 7.2-16 4
DMX 8-10 4
DMX 14-10 4
DMX 18-10 3
DMX 26-10 3
DMX 39-4 1
DMX 60-3 1
DMX 13.7-16 4
DMX 16-10 4
DMX 27-10 4
DMX 35-10 3
DMX 50-10 3
DMX 75-4 1
DMX 115-3 1
* Suction line and dosing head filled (continuous operation).
** Suction line and dosing head not filled, but dosing head and valves moistened (start-up).
8
50 Hz
Intake height**
[mWC]
4
4
3
2.5
1
1
3
4
3
3
2.5
1
1
3
3
3
2
2
1
1
60 Hz
Suction height* Intake height**
[mWC] [mWC]
4
4
3
3 2.5
1
1
4
4
4
3
3 2.5
1
1
3.5 2.5
3.5 2.5
3.5 2.5
2.5
2.5 1.5
0.5 0.5
0.5 0.5
Maximum length of
suction line
[m]
4 5
4 5
3 4
4
1 2
1 2
3 5
4 5
4 5
3 4
4
1 2
1 2
5
5
5
2 4
4
2
2