Grundfos NB - Horizontal Installation Clearances; MTB Minimum Clearance

4.2.2 Horizontal installation, NB, NBG
For inspection and repair, allow suitable
clearances for pump or motor removal.
• Pumps fitted with motors up to and including 4 kW
require a 0.3 m clearance behind the motor.
• Pumps fitted with motors of 5.5 kW and up require
a 0.3 m clearance behind the motor and at least a
1 m clearance above the motor to allow the use of
lifting equipment.
• NB pumps with base frame must have the same
clearance as pumps with motors from 5.5 to 200
kW.
A
TM034127
Clearance behind the motor
Motor Minimum clearance, A
0.25 - 4 kW 0.3 m
A
B
TM077156
Clearance behind and above the motor
Motor
Minimum clearance
A B
5.5 - 200 kW 0.3 m 1 m
4.2.3 Minimum clearance of MTB
For inspection and repair, allow suitable
clearances for pump or motor removal.
X
TM033547
Motor and pump head removal
Pump
P2
[kW]
Minimum clearance, X [mm]
Motor only
Motor and pump
head
50 Hz
MTB 50-200 3.0 60 140
MTB 65-160
5.5
80 100
7.5
MTB 65-200
11
100 100
15
60 Hz
MTB 50-200
3.0
60
1404.0
5.5 80
MTB 65-125 7.5 80 100
MTB 65-160
11
110 100
15
19
English (GB)