Grundfos CRN Series Service Instructions

English (GB)
20
7.4 Order of assembly for chambers and impellers
The assembly of the pump is illustrated in the following drawings.
Each symbol corresponds to a different chamber.
Note: Pos. 49 is the standard size impeller. Pos. 49a is an
impeller with reduced diameter, 2/3 of standard size.
TM06 8473 0917
3
4
5
6
2
1
7
8
9
10
11
12
4
44
4a
47a
3
3a
47a
48
49b
49
49a
49
49a
49
49a
49
49a
49
49a
3a
48
49b
48
48a
49b
48
48a
48
49b
49b
47a
47g
47g
47a
Stage
2 3 4 5 6 7 8 9 10 11 1211
CR95
5
60 Hz50 Hz

Grundfos CRN Series Specifications

General

Pump Type	Centrifugal, multistage
Material	Stainless steel (AISI 304 or 316)
Applications	Water supply, pressure boosting, industrial processes
Impeller Material	Stainless steel (AISI 304 or 316)
Connections	Flanged or threaded
Speed	2900 rpm
Temperature Range	-10°C to +120°C
Inlet/Outlet Size	DN 25 to DN 100