Grundfos CRN Series Product Guide

CR, CRI, CRN, CRE, CRIE, CRNE
14
Construction
CR(E) 1s, 1, 3, 5, 10, 15 and 20
Sectional drawing
Materials: CR(E)
1)
CR(E) 1s, 1, 3, 5
2)
CR(E) 10, 15, 20
3)
Stainless steel available on request.
4)
CF 8M is cast equivalent of AISI 316 stainless steel.
5)
CRI(E)/CRN(E) 1s, 1, 3, 5
6)
CRN(E) 10, 15, 20
7)
CRI(E) 10, 15, 20
CRI(E), CRN(E) 1s, 1, 3, 5, 10, 15 and 20
Sectional drawing
Materials: CRI(E), CRN(E)
TM02 1198 0601 - GR7377 - GR7379TM02 1194 1403
Pos. Designation Materials AISI/ASTM
1 Pump head Cast iron A 48-30 B
3 Shaft Stainless steel
AISI 316
1)
AISI 431
2)
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 Cast iron A 48-30 B
9 Neck ring PTFE
10 Shaft seal Cartridge type
Bearing rings Silicon carbide
Rubber parts EPDM or FKM
12 FJG flange Cast iron A 48-30 B
1
3
10
4
5
9
8
6
7
TM02 1808 2001 - GR7373 - GR7375TM03 2156 3805
Pos. Designation Materials AISI/ASTM
1 Pump head Cast iron
3)
A 48-30 B
2 Pump head cover Stainless steel
CF 8M
4)
3 Shaft Stainless steel
AISI 316
5)
AISI 329
6)
AISI 431
7)
8 Base Stainless steel
CF 8M
4)
9 Neck ring PTFE
10 Shaft seal Cartridge type
11 Base plate Cast iron
3)
A 48-30 B
Bearing rings Silicon carbide
Rubber parts EPDM or FKM
CRI(E)
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
12 FGJ flange ring Ductile iron
3)
A 65-45-12
Oval flange Stainless steel AISI 316
CRN(E)
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
12 FGJ flange ring Ductile iron
3)
A 65-45-12
1
2
10
4
5
8
6
3
7
9
12
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