Grundfos CRN Series Product Guide

Construction
CR, CRI, CRN, CRE, CRIE, CRNE
15
CR(E) 32, 45, 64 and 90
Sectional drawing
Materials: CR(E)
CRN(E) 32, 45, 64 and 90
Sectional drawing
Materials: CRN(E)
1)
CF 8M is cast equivalent of AISI 316 stainless steel.
2)
Stainless steel available on request.
TM01 2150 1298TM03 2157 3805
Pos. Designation Materials AISI/ASTM
1 Pump head Ductile iron A 65-45-12
2 Motor stool Cast iron A 48-30 B
3 Shaft Stainless steel AISI 431
4 Impeller Stainless steel AISI 304
5 Chamber Stainless steel AISI 304
6 Outer sleeve Stainless steel AISI 304
7
O-ring for outer
sleeve
EPDM or FKM
8 Base Ductile iron A 65-45-12
9 Neck ring Acoflon 215
10 Shaft seal Cartridge type
11 Bearing ring Bronze
12
Bottom bearing
ring
Tungsten carbide/
Tungsten carbide
13 Flange ring Ductile iron
2)
A 65-45-12
Rubber parts EPDM or FKM
2
3
1
5
9
4
6
11
8
12
10
7
13
TM02 7399 3403TM03 2158 3805
Pos. Designation Materials AISI/ASTM
1 Pump head Stainless steel
CF 8M
1)
2 Motor stool Cast iron A 48-30 B
3 Shaft Stainless steel SAF 2205
4 Impeller Stainless steel AISI 316
5 Chamber Stainless steel AISI 316
6 Outer sleeve Stainless steel AISI 316
7
O-ring for outer
sleeve
EPDM or FKM
8 Base Stainless steel
CF 8M
1)
9 Neck ring Acoflon 215
10 Shaft seal Cartridge type
11 Bearing ring
Carbon-graphite filled
PTFE
12
Bottom
bearing ring
Tungsten carbide/
Tungsten carbide
13 Base plate Ductile iron
2)
A 65-45-12
14 Flange ring Ductile iron
2)
A 65-45-12
Rubber parts EPDM or FKM
2
1
5
9
4
6
12
7
13
3
10
8
14
11

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