Technical Data, Dmm 440 To; Operating Conditions; Electrical Motor Data; Dimensions - Grundfos DMM 4 Instrucciones De Instalación Y Funcionamiento

3. Technical data, DMM 440 to 990

3.1 Operating conditions

DMM
Maximum pressure
Maximum capacity
at maximum pressure
Diaphragm diameter
Maximum stroke frequency
Suction lift
Ambient temperature
Liquid temperature
Accuracy of repeatability
Weight (dosing head of plastic)
Weight (dosing head of stainless
steel)

3.2 Electrical motor data

DMM
Standard motor type
Connection
-1
Speed [min. ]
Voltage [V]
Rated current [A]
Power, P [kW]
2
Frequency [Hz]
Enclosure class
Insulation class

3.3 Dimensions

See dimensions at the end of these instructions.
All dimensions are in mm.

3.4 Performance curves

See performance curves at the end of these instruc-
tions. The pump performance curves depend on the
viscosity of the pumped liquid and the installation
conditions.
The curves apply to water at 18°C and a suction lift
of 0.6 metres.
8
440
bar 5
l/h 440
ml/stroke 165
mm 185
1/min. 47
m
°C
%
38
kg
48
640 990
5 4
640 990
165 165
185 185
70 101
3
Maximum 40
Maximum 50
±2
38 38
48 48
80 RF 0.55/4-7
∆/Y
1410
230/400
2.6/1.55
0.75
50
IP 55
B