CR, CRI, CRN, CRE, CRIE, CRNE
17
Type keys and codes
Type keys
CR(E), CRI(E), CRN(E)
Codes
Example CR E 32 (s) -4 -2 -A -G -G -E - HQQE
Type range:
CR, CRI, CRN
Pump with integrated
frequency control
Nominal flow rate [m
3
/h]
All impellers with reduced diameter
(applies only to CR, CRI, CRN 1s)
Number of impellers
Number of reduced diameter impellers
(CR(E), CRN(E) 32, 45, 64, 90, 120, and 150)
Code for pump version
Code for pipe connection
Code for materials
Code for rubber parts
Code for shaft seal
Example A -G -A -E -H QQ E
Pump version
A Basic version
1)
B Oversize motor
E Certificate/approval
F
CR pump for high temperatures
(air-cooled top assembly)
H Horizontal version
HS
High-pressure pump with high speed MLE
motor
I Different pressure rating
J Pump with different max speed
K Pump with low NPSH
M Magnetic drive
N Fitted with sensor
P Undersize motor
R Horizontal version with bearing bracket
SF High pressure pump
T
Over size motor
(two flange sizes bigger)
U NEMA version
1)
X Special version
Pipe connection
A Oval flange
B NPT thread
CA FlexiClamp (CRI(E), CRN(E) 1, 3, 5, 10, 15, 20)
CX Triclamp (CRI(E), CRN(E) 1, 3, 5, 10, 15, 20)
F DIN flange
G ANSI flange
J JIS flange
N Changed diameter of ports
P PJE coupling
X Special version
Materials
A Basic version
D Carbon-graphite filled PTFE (bearings)
G Wetted parts AISI 316
GI
All parts stainless steel, wetted parts AISI
316
I Wetted parts AISI 304
II
All parts stainless steel, wetted parts AISI
304
K Bronze (bearings)
S SiC bearings + PTFE neck rings
X Special version
Code for rubber parts
E EPDM
FFXM
KFFKM
VFKM
Shaft seal
A O-ring seal with fixed driver
B Rubber bellows seal
E Cartridge seal with O-ring
H Balanced cartridge seal with O-ring
K Metal bellows cartridge seal
O Double seal, back-to-back
P Double seal, tandem
X Special version
B Carbon, synthetic resin-impregnated
H Cemented tungsten carbide, embedded (hybrid)
Q Silicon carbide
U Cemented tungsten carbide
X Other ceramics
E EPDM
FFXM
KFFKM
VFKM
1)
In August 2003 the NEMA version pump code was discontinued for all
material numbers created by Grundfos manufacturing companies in
North America. The NEMA version pump code will still remain in effect
for existing material numbers. NEMA version pumps built in North
America after this change will have either an A or U as the pump ver-
sion code depending on the date the material number was created.
Example A -G -A -E -H QQ E
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