Grundfos CRI Series User manual

GRUNDFOS PRODUCT GUIDE
CR, CRI, CRN,
CRE, CRIE, CRNE
Vertical multistage centrifugal pumps
60 Hz

Contents
2
Mission
Product overview
Introduction 4
Product range 6
Applications 8
Pump 9
9
Motor 9
Terminal box positions 10
Ambient temperature 10
Viscosity 10
Product overview for E-pumps
Examples of E-pump applications 11
Control of E-pumps
Control options of E-pumps 12
Control modes for E-pumps 12
Construction
CR(E) 1s, 1, 3, 5, 10, 15 and 20 14
CRI(E), CRN(E) 1s, 1, 3, 5, 10, 15 and 20 14
CR(E) 32, 45, 64 and 90 15
CRN(E) 32, 45, 64 and 90 15
CR(E) 120 and 150 16
CRN(E) 120 and 150 16
Type keys and codes
Type keys 17
Codes 17
Operating and inlet pressure
Maximum operating pressure and temperature range 18
Operating range of the shaft seal 19
Maximum inlet pressure 20
Selection and sizing
Selection of pumps 21
How to read the curve charts 25
Guidelines to performance curves 25
Performance curves/
Technical data
CR, CRI, CRN 1s 26
CR(E), CRI(E), CRN(E) 1 30
CR(E), CRI(E), CRN(E) 3 34
CR(E), CRI(E), CRN(E) 5 38
CR(E), CRI(E), CRN(E) 10 42
CR(E), CRI(E), CRN(E) 15 46
CR(E), CRI(E), CRN(E) 20 50
CR(E), CRN(E) 32 54
CR(E), CRN(E) 45 57
CR(E), CRN(E) 64 60
CR, CRN 90 63
CR, CRN 120 66
CR, CRN 150 69
Motor data
Standard motors in the CR range 72
TEFC motors 72
ODP motors 73
2 Pole MLE motors 73
Pumped liquids
Pumped liquids 74
List of pumped liquids 74
Accessories
Pipework connection 77
Sensors for CRE, CRIE, CRNE 82
Gauges for CRE, CRIE, CRNE 82
Variants
Lists of variants - on request 83
Motors 83
Connections and other variants 83
Shaft seals 83
Pumps 83
Quotation text
WebCAPS 89
WinCAPS 90

3
Mission
It is our mission — the basis of our existence — to successfully develop, produce and sell high-quality pumps and
pumping systems worldwide, contributing to a better quality of life and a healthy environment
• The world's leading pump company
• World's largest manufacturer of circulator pumps
• World headquarters in Denmark
• North American headquarters in Kansas City - Manufacturing in Fresno, California
• 80 companies in 45 countries
• More than 16 million motors and pumps produced annually worldwide
• North American companies operating in USA, Canada and Mexico
• Continuous reinvestment in growth and development enables the company to
BE responsible, THINK ahead, and INNOVATE
Bjerringbro, Denmark
Fresno, California Olathe, Kansas
Monterrey, Mexico Allentown, Pennsylvania Oakville, Ontario

CR, CRI, CRN, CRE, CRIE, CRNE
4
Product overview
Introduction
This data booklet deals with CR, CRI and CRN as well
as CRE, CRIE and CRNE pumps.
CR, CRI, CRN
Fig. 1 CR, CRI and CRN pumps
CR,CRI,CRNpumps are vertical multistagecentrifugal
pumps. The in-line design enables the pump to be
installed in a horizontal one-pipe system where the
suction and discharge ports are in the same horizontal
plane and have the same pipe dimensions. This design
provides a more compact pump design and pipework.
Grundfos CR pumps come with various pump sizes and
various numbers of stages to provide the flow and the
pressure required.
CR pumps are suitable for a variety of applications from
pumping of potable water to pumping of chemicals. The
pumps are therefore used in a wide variety of pumping
systems where the performance and material of the
pump meet specific demands.
The CR pumps consist of two main components: the
motor and the pump unit. The motor on a CR pump is a
heavy-duty Grundfos specified motor.
The pump unit consists of optimized hydraulics, various
typesofconnections, an outersleeve, a top and various
other parts.
CR pumps are available in various material versions
according to the pumped liquid.
CRE, CRIE, CRNE
Fig. 2 CRE, CRIE and CRNE pumps
CRE, CRIE, CRNE pumps are built on the basis of CR,
CRI, CRN pumps.
CRE, CRIE, CRNE pumps belong to the so-called E-
pump family and are referred to as E-pumps.
The difference between the CR and the CRE pump
range is the motor. CRE, CRIE, CRNE pumps are fitted
with an E-motor, i.e. a motor with built-in frequency
control.
The motor of the CRE pump is a Grundfos MLE motor.
Frequency control enables continuously variable
control of motor speed, which makes it possible to set
the pump to operation at any duty point. The aim of
continuously variable control of the motor speed is to
adjust the performance to a given requirement.
CRE, CRIE and CRNE pumps are available with an
integrated pressure sensor connected to the frequency
control.
The pump materials are the same as those of the CR,
CRI, CRN pump range.
Selecting a CRE pump
Select a CRE pump if:
• controlled operation is required, i.e. consumption
fluctuates;
• constant pressure is required,
• communication with the pump is required.
Adaptation of performance through frequency-
controlled speed control offers obvious advantages:
• Energy savings.
• Increased comfort.
• Control and monitoring of the pump performance.
TM02 7698 3803
TM02 7397 3403

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
5
Performance range - CR, CRI, CRN
Performance range - CRE, CRIE, CRNE
TM02 5518 0209
1 2 4 6 8 1010 20 40 60 80 100100 200 400 600 800
Q [US GPM]
20
30
40
60
80
100
200
300
400
600
800
1000
[ft]
H
1010
20
30
40
50
60
80
100100
200
300
[m]
H
11 2 3 4 5 6 7 8 1010 20 30 40 50 60 80 100100
Q [m³/h]
60 Hz
CR 150
CR 120
CR 20
CR 15
CR 10CR 1s
CR 5
CR 3
CR 1
CRI 1
CRN 1
CRI 3
CRN 3
CRI 5
CRN 5 CRN 32 CRN 64
CRN 90CRN 45
CR 32
CR 45
CR 64
CR 90
CRI 1s
CRN 1s CRI 10 CRN 10
CRI 15
CRN 15
CRI 20
CRN 20
CRN 120
CRN 150
1 2 4 6 8 1010 20 40 60 80 100100 200 400 600 800
Q [US GPM]
0
20
40
60
80
[%]
Eff
TM05 1598 3411
2 4 6 8 1010 20 40 60 80 100100 200 400 600 80010001000
Q [US GPM]
20
30
40
60
80
100
200
300
400
600
800
1000
[ft]
H
1010
20
30
40
50
60
80
100100
200
300
[m]
H
11 2 3 4 5 6 7 8 91010 20 30 40 50 607080 100100
Q [m³/h]
60 Hz
CRE
CRE 150
CRE 120
CRE 20
CRE 15
CRE 10
CRE 5
CRE 3CRE 1s
CRE 1
CRIE 1
CRNE 1
CRIE 3
CRNE 3
CRIE 5
CRNE 5 CRNE CRNE
CRNECRNE
CRE 32
CRE 45
CRE 64
CRE 90
CRIE 10
CRNE 10
CRIE 15
CRNE 15
CRIE 20
CRNE 20
CRNE 120
CRNE 150
32 64
45 90
CRIE 1s
CRNE 1s
2 4 6 8 1010 20 40 60 80 100100 200 400 600 80010001000
Q [US GPM]
0
20
40
60
80
[%]
Eff

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
6
Product range
Range CR 1s CR 1 CR 3 CR 5 CR 10 CR 15 CR 20
Nominal flow rate [US GPM] 4.5 8.5 15 30 55 95 110
Temperature range [°F] –4 to +250
Temperature range [°F]
– on request –40 to +356
Max. working pressure [psi] 362 362 362 362 362 362 362
Max. working pressure [psi]
– on request - 725 725 725 725 725 725
Max.pumpefficiency[%] 35495967707272
CR pumps
CR: Flow range [US GPM] 0.5-5.7 1 - 12.8 1.5 - 23.8 3 - 45 5.5 - 70 9.5 - 125 11-155
CR: Max. pump pressure (H[ft]) 760 790 790 780 820 800 700
CR: Motor power [Hp] .33 - 2 .33 - 3 .33 - 5 .75 - 7.5 .75 - 15 2 - 25 3-25
CRE pumps
CRE: Flow range [US GPM] - 0 - 12.8 0 - 23.8 0 - 45 0 - 70 0 - 125 0-155
CRE: Max. pump pressure (H[ft]) - 790 790 780 820 800 700
CRE: Motor power [Hp] - .33 - 3 .33 - 5 .75 - 7.5 .75 - 15 2 - 25 3-25
Version
CR, CRE:
Cast iron and stainless steel AISI 304 
CRI, CRIE:
Stainless steel AISI 304 
CRN, CRNE:
Stainless steel AISI 316 
CRT, CRTE:
Titanium - See CRT, CRTE product guide -
CR, CRE pipe connection
Oval flange (NPT) 1" 1" 1" 1.25" 2" 2" 2"
Oval flange (NPT) - on request 1.25" 1.25" 1.25" 1" 1.5" - -
ANSI flange size 1.25" 1.25" 1.25" 1.25" 2" 2" 2"
ANSI flange size - on request - - - - - - -
ANSI flange class 250 lb. 250 lb. 250 lb. 250 lb. 250 lb. 250 lb. 250 lb.
CRI, CRIE pipe connection
Oval flange (NPT) 1" 1" 1" 1.25" 2" 2" 2"
Oval flange (NPT) - on request 1.25" 1.25" 1.25" 1" 1.5" - -
ANSI flange size 1.25" 1.25" 1.25" 1.25" 2" 2" 2"
ANSI flange class 300 lb. 300 lb. 300 lb. 300 lb. 300 lb. 300 lb. 300 lb.
Clamp coupling (NPT) - on request 1",
1.25" 1", 1.25" 1", 1.25" 1", 1.25" 1.5", 2" 1.5", 2" 1.5" 2"
Union (NPT ext. Thread) - on request 2" 2" 2" 2" - - -
CRN, CRNE pipe connection
PJE (Victaulic) 1.25" 1.25" 1.25" 1.25" 2" 2" 2"
PJE (Victaulic) - on request - - - - - - -
ANSI flange size 1.25" 1.25" 1.25" 1.25" 2" 2" 2"
ANSI flange size - on request - - - - - - -
ANSI flange class 300 lb. 300 lb. 300 lb. 300 lb. 300 lb. 300 lb. 300 lb.
Clamp coupling (NPT) - on request 1",
1.25" 1", 1.25" 1", 1.25" 1", 1.25" 1.5", 2" 1.5", 2" 1.5", 2"
Union (NPT ext. Thread) - on request 2" 2" 2" 2" - - -
CRT pipe connection
PJE coupling (Vitaulic) - 1.25" 1.25" 1.25" 2" 2" -
ANSI flange size - on request - - - - 2" 2" -
Available

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
7
Range CR 32 CR 45 CR 64 CR 90 CR 120 CR 150
Nominal flow rate [US GPM] 140 220 340 440 610 750
Temperature range [°F] –22 to +250 1) –22 to +250 1) & 2)
Temperature range [°F]
– on request –40 to +356 - -
Max. working pressure [psi] 435 435 360 360 360 360
Max. working pressure [psi]
– on request 580 580 580 580 - -
Max. pump efficiency [%] 76 78 79 80 75 73
CR pumps
CR: Flow range [US GPM] 14-210 22-310 34-450 44-630 61-700 75-790
CR: Max. pump pressure (H[ft]) 995 940 565 595 685 570
CR: Motor power [Hp] 5-50 7.5-60 10-60 15-60 20-100 25-100
CRE pumps
CRE: Flow range [US GPM] 0-210 0-310 0-450 0-630 0-700 0-790
CRE: Max. pump pressure (H[ft]) 720 490 335 285 140 155
CRE: Motor power [Hp] 5-30 7.5-30 10-30 15-30 20-25 25-30
Version
CR, CRE:
Cast iron and stainless steel AISI 304 
CRI, CRIE:
Stainless steel AISI 304 ------
CRN, CRNE:
Stainless steel AISI 316 
CRT, CRTE:
Titanium ------
CR, CRE pipe connection
Oval flange (NPT) - - - - - -
Oval flange (NPT) - on request - - - - - -
ANSI flange size 2.5" 3" 4" 4" 5” 3) 5” 3)
ANSI flange size - on request 3" 4" 5" 3) 5" 3) 6” 6”
ANSI flange class 125/
250 lb. 125/ 250 lb. 125/ 250 lb. 125/ 250 lb. 125/ 250 lb. 125/ 250 lb.
CRI, CRIE pipe connection
Oval flange (NPT) - - - - - -
Oval flange (NPT) - on request - - - - - -
ANSI flange size - - - - - -
ANSI flange class - - - - - -
Clamp coupling (NPT) - on request - - - - - -
Union (NPT ext. Thread) - on request - - - - - -
CRN, CRNE pipe connection
PJE (Victaulic) - - - - - -
PJE (Victaulic) - on request 3" 4" 4" 4" 4" 4"
ANSI flange size 2.5" 3" 4" 4" 5” 5”
ANSI flange size - on request 3" - - 5" 6" 6"
ANSI flange class 150/
300 lb. 150/ 300 lb. 150/ 300 lb. 150/ 300 lb. 150/ 300 lb. 150/ 300 lb.
Clamp coupling (NPT) - on request - - - - - -
Union (NPT ext. Thread) - on request - - - - - -
CRT pipe connection
PJE coupling (Vitaulic) - - - - - -
ANSI flange size - on request - - - - - -
Available
1) CRN 32 to CRN 90 with HQQE shaft seal: –40 °F to +250 °F
2) CR, CRN 120 and 150 with 75 or 100 Hp motors with HBQE shaft seal: 0 °F to +250 °F
3) CR 5" flange is not manufactured to ANSI specification. Gasket contact surface is approximately 0.25". CR 6" ANSI flange adapter is manufactured to
ANSI B16.5 specification.

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
8
Applications
Application CR, CRI CRN CRE, CRNE
Water supply
Filtration and transfer at waterworks 
Distribution from waterworks 
Pressure boosting in mains 
Pressure boosting in high-rise buildings, hotels, etc. 
Pressure boosting for industrial water supply 
Industry
Pressure boosting in...
process water systems 
washing and cleaning systems 
vehicle washing tunnels 
fire fighting systems 
Liquid transfer in...
cooling and air-conditioning systems (refrigerants) 
boiler feed and condensate systems 
machine tools (cooling lubricants) 
aquafarming
Transfer of...
oils and alcohols 
acids and alkalis
glycol and coolants 
Water treatment
Ultra-filtration systems 
Reverse osmosis systems
Softening, ion exchange, demineralizing systems 
Distillation systems 
Separators 
Swimming pools
Irrigation
Field irrigation (flooding) 
Sprinkler irrigation 
Drip-feed irrigation 
Recommended version.
Alternative version.
CRT, CRTE version available. For further information about CRT, CRTE pumps see, "Pumped liquids" page 74 or related CRT, CRTE product guide.

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
9
Pump
The CR and CRE pump is a non-self-priming, vertical
multistage centrifugal pump. The pumps are available
with a Grundfos standard motor (CR pumps) or a
frequency-controlled motor (CRE pumps).
The pump consists of a base and a pump head. The
chamber stack and the outer sleeve are secured
between the pump head and the base by means of
staybolts. The base has suction and discharge ports on
the same level (in-line).
All pumps are equipped with a maintenance-free
mechanical shaft seal of the cartridge type.
Fig. 3 CR pump
CR pump with ANSI/NSF 61 listing is available. See UL
file MH26400 or contact Grundfos.
Motor
Grundfos standard motors - ML and Baldor® motors
CR, CRI and CRN pumps are fitted with a Grundfos
specified motor. The motors are all heavy-duty 2-pole,
NEMA C-face motors.
Frequency-controlled motors - MLE motors
CRE, CRIE and CRNE pumps are fitted with a totally
enclosed, fan-cooled, 2-pole motor with integrated
variable frequency drive.
From 0.5 Hp to 1.5 Hp Grundfos offers CRE pumps
fitted with single-phase MLE motors (1 x 208-230 V).
From 1.0 Hp to30 Hp GrundfosoffersCREpumps fitted
with three-phase MLEmotors (3 x 460-480 V). From 1.5
Hp to 7.5 Hp Grundfos offers CRE pumps fitted with
three-phase MLE motors (3 x 208-230 V).
Electrical data
Optional motors
The Grundfos standard range of motors covers a wide
variety of application demands. However, for special
applicationsoroperatingconditions, custom-built motor
solutions can be provided.
For special applications or operating conditions,
Grundfos offers custom-built motors such as:
• explosion proof motors,
• motors with anti-condensation heating unit,
• low-noise motors,
• premium efficiency motors,
• motors with thermal protection.
Motor protection
Single-phase Grundfos specified motors up to 7.5 hp
have a built-in thermal overload switch.
Three-phase motors must be connected to a motor
starter in accordance with local regulations.
GR5357 - GR3395
Motor
Coupling
Pump head
Outer sleeve
Staybolts
Base plate
Base
Impellers
Shaft seal
(Cartridge type)
Mounting
designation NEMA
Insulation
class F & B
Efficiency
class* Energy efficient Premium efficiency - on request for 15 Hp and above
Enclosure
class
TEFC - Totally Enclosed Fan Cooled
(Grundfos standard)
ODP - Open Drip Proof - on request
60 Hz
Standard
voltages
1 x 115/208-230 V
3 x 208-230/460 V
3 x 575 V
Approvals
The motors are rated for:
Baldor ML/MLE MLE
* 1 - 10 Hp ML motors are premium efficiency as standard
R
U
R
U
CUS
LISTED

Product overview CR, CRI, CRN, CRE, CRIE, CRNE
10
Terminal box positions
As standard the terminal box is mounted on the suction
side of the pump.
Fig. 4 Terminal box positions
Ambient temperature
Ambient temperature: Maximum +104 °F.
If the ambient temperature exceeds +104 °F or if the
motor is located 3280 feet above sea level or higher,
the motor output (P2) must be reduced due to the low
cooling effect of the air. In such cases, it may be
necessary to use a motor with a higher output.
Fig. 5 Relationship between motor output (P2) and
ambient temperature
Viscosity
The pumping of liquids with densities or kinematic
viscosities higher than those of water will cause a
considerable pressure drop, a drop in the hydraulic
performance and a rise in the power consumption.
In such situations the pump should be equipped with a
larger motor. If in doubt, contact Grundfos.
TM02 18 05 2001TM03 4272
Stellung 6 Stellung 9 Stellung 12 Stellung 3
Position 6
Standard Position 9 Position 12 Position 3
60 80 100 120 140 160 180
T [°F]
50
60
70
80
90
100
[%]
P2
1
2
3280 7382 11483 15584 ft
1 = Baldor motors
2 = Grundfos ML motors