Layout and function
3.2
Layout
1
2
3
6
7
8
4
5
Fig. 5
Layout
1
Motor with fixed bearing at drive end
2
Motor bell housing
3
Stub shaft
4
Limit for heat insulation
5
Impeller
6
Volute casing
7
Shaft seal
8
Guard sheet
3.3
Shaft seals
Only one of the following shaft seals can be used.
3.3.1
Mechanical seals
Mechanical seals have functional leaks.
•
Single mechanical seal
•
Single mechanical seal with quenching
12
NI series
BA-2021.06 en-US
550 113 – 146-900/E
