Grundfos CRN Series Product Guide

Construction
CR, CRI, CRN, CRE, CRIE, CRNE
16
CR(E) 120 and 150
Sectional drawing
Materials: CR(E)
1)
22 mm shaft, 15-60 Hp. 32 mm shaft, 75-100 Hp.
CRN(E) 120 and 150
Sectional drawing
Materials: CRN(E)
1)
Stainless steel available on request.
2)
22 mm shaft, 15-60 Hp. 32 mm shaft, 75-100 Hp.
GrA3731TM03 8835 2607
Pos. Designation Materials AISI/ASTM
1 Pump head Ductile iron
A 536
65-45-12
2
Motor stool (15-60 Hp) Cast iron A48-30 B
Motor stool (75-100 Hp) Ductile iron
A 536
65-45-12
3 Shaft Stainless steel AISI 431
4 Impeller Stainless steel AISI 304
5 Chamber Stainless steel AISI 304
6 Outer sleeve Stainless steel AISI 316
7 O-ring for outer sleeve EPDM or FKM
8 Base Ductile iron
A 536
65-45-12
9 Base plate Ductile iron
A 536
65-45-12
10 Neck ring PTFE
11 Shaft seal
1)
Cartridge type
12 Support bearing PTFE
13 Bearing rings Silicone carbide
Rubber parts EPDM or FKM
GrA3732 - GrA3735TM03 8836 2607
Pos. Designation Materials AISI/ASTM
1 Pump head Stainless steel A 351 CF 8M
2
Motor stool (15-60 Hp) Cast iron A48-30 B
Motor stool (75-100 Hp) Ductile iron
A 536
65-45-12
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 A 351 CF 8M
9 Base plate Ductile iron
1)
A 536
65-45-12
10 Neck ring PTFE
11 Shaft seal
2)
Cartridge type
12 Support bearing PTFE
13 Bearing rings Silicone carbide
14 Base plate Ductile iron
1)
A 536
65-45-12
Rubber parts EPDM or FKM

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