Grundfos CR 95 Installation and operation manual

GRUNDFOS DATA BOOKLET
CR, CRN 95-155
Vertical, multistage centrifugal pumps
60 Hz
(NEMA)

Table of contents
2
CR, CRN 95-155
1. Product introduction 3
Applications 3
Pumped liquids 3
Performance range 4
Applications 5
Product range 6
Pump 7
Motor 7
Terminal box positions 7
Viscosity 7
2. Construction 8
CR 95, 125 and 155 8
CRN 95, 125 and 155 9
Type keys 10
3. Operating and inlet pressures 11
Max. operating pressure and liquid temperature 11
Operating range of the shaft seal 12
Maximum inlet pressure 13
4. Selection and sizing 14
Selection of pumps 14
How to read the curve charts 17
Guidelines to performance curves 17
5. Performance curves and technical data 18
CR 95 18
CRN 95 20
CR 125 22
CRN 125 24
CR 155 26
CRN 155 28
6. Motor data 30
Standard motors, 60 Hz 30
7. List of pumped liquids 31
8. Accessories 33
9. Grundfos Product Center 34
Grundfos GO 35

Product introduction
CR, CRN 95-155 1
3
1. Product introduction
This data booklet covers Grundfos CR and CRN
pumps with these nominal flow sizes:
• CR, CRN 95
• CR, CRN 125
• CR, CRN 155.
Fig. 1 CR, CRN 95-155
CR, CRN pumps are vertical multistage, centrifugal
pumps. The in-line design of the pumps enables
installation in a horizontal one-pipe system where the
inlet and outlet ports are in the same horizontal level
and have the same pipe dimensions. This design
provides a more compact pump design.
The pumps are available in various sizes and various
numbers of stages to deliver the flow and pressure
required.
CR, CRN pumps are designed for a variety of
applications ranging from the pumping of potable water
to the pumping of chemicals. The pumps are therefore
suitable for a wide diversity of pumping systems where
the performance and material of the pump meet
specific demands.
A CR, CRN pump consists of two main components:
the motor and the pump unit.
The pump unit consists of optimized hydraulics,
various types of connections, a sleeve, a pump head
and various other parts. See Construction, page 8.
CR, CRN pumps are available in various material
versions according to the pumped liquid.
CR pumps with ANSI/NSF 61 and ANSI/NSF 372
listing are available. FKM variants are only available
with ANSI/NSF 372 listing. See UL file MH24600 or
contact Grundfos.
Applications
The new CR, CRN range is suitable for numerous
applications identical to the applications which the
current CR, CRN pumps handle today. The following
applications are some typical examples.
Water supply:
• Filtration and transport water works
• Distribution from water works
• Pressure boosting of mains.
Industrial:
• Pressure boosting
• Process water transfer
• Boiler feed
• Cooling and air conditioning
• Firefighting systems
• District energy systems
• Special liquids transfer.
Water treatment:
• Filtration
• Brackish water reverse osmosis.
Pumped liquids
Thin, non-explosive liquids, not containing solid
particles or fibers. The liquid must not attack the pump
materials.
CR pumps are suitable for non-corrosive liquids and
are to be used for liquid transfer, circulation and
pressure boosting of cold or hot clean water.
CRN pumps are suitable for industrial liquids and are
to be used in systems where all parts in contact with
the liquid must be made of high-grade stainless steel.
For further details see List of pumped liquids, page 31.
TM06 9062 1617

Product introduction
CR, CRN 95-155
1
4
Performance range
Fig. 2 Performance range, CR, CRN
TM06 5583 3718
250 300 350 400 500 600 700 800 1000 1200
Q [US GPM]
80
100
150
200
300
400
600
800
1000
[ft]
H
57 60 70 80 90 100100 200 Q [m³/h]
25
30
40
50
60
70
80
100100
200
300
[m]
H
60 Hz
CR(N) 95
CRN 125
CR 125
CRN 155
CR 155
250 300 350 400 500 600 700 800 1000 1200
Q [US GPM]
0
20
40
60
80
[%]
Eff

Product introduction
CR, CRN 95-155 1
5
Applications
●Recommended version.
❍Alternative version.
* For applications involving CIP (cleaning-in-place) and motors above 75 Hp (55 kW,) a bearing flange must be used and a base without thrust
handling device or blind flange.
Application CR CRN
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
Process-water systems ●●
Washing and cleaning systems*●●
Vehicle-washing tunnels ●❍
Firefighting systems ●-
Liquid transfer
Cooling and air-conditioning systems (refrigerants) ●❍
Boiler feed and condensate systems ●❍
Machine tools (cooling lubricants) ●●
Aquafarming ●❍
Special transfer duties
Oils and alcohols ●●
Acids and alkalis - ●
Glycol and coolants ●-
Water treatment
Ultra-filtration systems - ●
Reverse osmosis systems - ●
Softening, ionizing, demineralizing systems - ●
Distillation systems - ●
Separators ●●
Swimming pools - ●
Irrigation
Field irrigation (flooding) ●❍
Sprinkler irrigation ●❍
Drip-feed irrigation ●❍

Product introduction
CR, CRN 95-155
1
6
Product range
1) CRN 95 to 155 with HQQE shaft seal: -40 to +248 °F (-40 to +120 °C).
2) CR pumps: Maximum operating pressure is 363 psi (25 bar).
Range CR, CRN 95 CR, CRN 125 CR, CRN 155
Rated flow rate [US gpm (m3/h)] 500 (114) 660 (150) 820 (186)
Liquid temperature [°F (°C)] -22 to +2481) (-30 to +120)
Maximum pump efficiency [%] 82.5 82.5 82.5
CR, CRN pumps
Flow rate [US gpm] 255-660 330-860 410-1060
Maximum pressure [psi (bar)] 5372) (37) 5662) (39) 5802) (40)
Motor power [Hp (kW)] 20-75 (15-55) 20-150 (15-111) 25-150 (18-111)
Version
CR:
Cast iron and stainless steel
EN 1.4301/AISI 304
●● ●
CRN:
Stainless steel
EN 1.4401/AISI 316
●● ●
CR pipe connection
Flange 4" ANSI 6" ANSI
CRN pipe connection
Flange 4" ANSI 6" ANSI
PJE coupling (Victaulic type) 4" 6"

Product introduction
CR, CRN 95-155 1
7
Pump
The CR pumps are non-self-priming, vertical
multistage centrifugal pumps.
The pumps are available with a Grundfos or Baldor
standard motor.
The pump consists of a base and a pump head. The
chamber stack and the sleeve are secured between
the base and the pump head by means of staybolts.
The base has inlet and outlet ports on the same level
(in line). All pumps are fitted with a maintenance-free
mechanical shaft seal of the cartridge type.
Fig. 3 CR pump
Motor
Grundfos ML standard and Baldor motors
CR, CRN pumps are fitted with a totally enclosed,
fan-cooled, 2-pole Grundfos or Baldor standard motor.
Angular contact bearings are fitted to the drive end on
motors up to 75 Hp (56 kW). This ensures that the
motor bearing life (L10) is extended to match that of
the pump.
Electrical data
* A different enclosure type is available on request.
** Different voltages are available on request.
Grundfos E-motors
We also offer frequency-controlled CRE, CRNE pumps
which are the ideal choice for a number of applications
characterized by a demand for variable flow at
constant pressure. These pumps are suited for water
supply systems and pressure boosting as well as for
industrial applications. Depending on the application,
the pumps offer energy savings, increased comfort and
improved processing.
Optional motors
The Grundfos standard range of motors covers a wide
variety of application demands. However, for special
applications or operating conditions, custom-built
motor solutions can be provided.
For special applications or operating conditions, we
offer custom-built motors such as
• Explosion-proof motors
• Motors with anti-condensation heating unit
• motors with thermal protection.
Motor protection
Single-phase Grundfos motors have a built-in thermal
overload switch (TP 211 according to IEC 34-11).
Three-phase motors must be connected to a
motor-protective circuit breaker according to local
regulations.
Three-phase Grundfos ML motors 5 Hp ( 5 kW) and
larger have a built-in thermistor (PTC) according to
DIN 44082 (TP 211 according to IEC 34-11).
Terminal box positions
As standard, the terminal box is fitted on the inlet side
of the pump.
Fig. 4 Terminal box positions
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 must be fitted with a
larger motor. If in doubt, contact Grundfos.
GR5357 - GR3395
Efficiency class NEMA Premium
Insulation class F/B
Enclosure type* TEFC
Rated voltage** 3 x 208-230 VΔ/ 3 x 380-480 V Y
3 x 575 VΔ(only Canada)
Number of poles 2
Frequency, standard motors 60 Hz
Impellers
Base
Motor
Coupling
Pump head
Sleeve
Staybolts
Base plate
Shaft seal
(cartridge type)
TM03 3658 0606
6 o’clock
position
(standard)
9 o’clock
position
12 o’clock
position
3 o’clock
position

Construction
CR, CRN 95-155
2
8
2. Construction
CR 95, 125 and 155
Materials, CR
1) Applies to CR 95.
2) Applies to CR 125 to CR 155.
3) Only fitted on pumps with 100 Hp (75 kW) motors or larger.
TM06 9206 1917 TM06 5161 1917
ANSI flange
1
2
3
4
6
8
9
10
12
11
13
5
7
Pos. Designation Materials DIN/EN ≈AISI/ASTM
1 Motor stool Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
2 Shaft Stainless steel EN10088 1.40571)
EN10088 1.44622) EN10088 1.4057=431
EN10088 1.4462=318 LN
3 Shaft seal (seal faces) Silicon carbide/Silicon carbide - -
4 Pump head Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
5 Support bearing (bush) Carbon-graphite filled PTFE
6 Impeller Stainless steel EN10088 1.4301 AISI 304
7 Neck ring PEEK - -
8 Chamber Stainless steel EN10088 1.4301 AISI 304
9 Sleeve Stainless steel EN10088 1.43011)
EN10088 1.44042) AISI 3041)
AISI 316 L2)
10 Bearing ring Tungsten carbide/Tungsten
carbide --
11 Thrust handling device3) Stainless steel EN10088 1.4401
EN10283 1.4408 AISI 316/CF 8M
Silicon carbide/Tungsten carbide - -
12 Base Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
13 Base plate Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
Rubber parts EPDM or FKM - -

Construction
CR, CRN 95-155 2
9
CRN 95, 125 and 155
Materials, CRN
1) Only fitted on pumps with 100 Hp (75 kW) motors or larger.
TM06 9203 1917 - TM06 9208 1917 - TM06 921 01917 TM06 5161 1917
ANSI flange PJE (Victaulic type)
1
2
3
4
6
8
9
10
12
11
13
5
7
Pos. Designation Materials DIN/EN ≈AISI/ASTM
1 Motor stool Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
2 Shaft Stainless steel EN10088 1.4462 318 LN
3 Shaft seal (seal faces) Silicon carbide/Silicon carbide - -
4 Pump head Stainless steel EN10283 1.4408 CF 8M
5 Support bearing (bush) Carbon-graphite filled PTFE - -
6 Impeller Stainless steel EN10088 1.4401 AISI 316
7 Neck ring PEEK - -
8 Chamber Stainless steel EN10088 1.4401 AISI 316
9 Sleeve Stainless steel EN10088 1.4404 AISI 316 L
10 Bearing ring Tungsten carbide/Tungsten
carbide --
11 Thrust handling device1) Stainless steel EN10088 1.4401
EN10283 1.4408 AISI 316/CF 8M
Silicon carbide/Tungsten carbide - -
12 Base Stainless steel EN10283 1.4408 CF 8M
13 Base plate Ductile cast iron EN-GJS-500-7 ASTM A536-84 70-50-05
Rubber parts EPDM or FKM - -

Construction
CR, CRN 95-155
2
10
Type keys
CR, CRN 95-155 Key to codes
* Option. See the CR "Custom-built pumps" data booklet available on
Grundfos Product Center. See QR code or link below.
http://net.grundfos.com/qr/i/96486346
Shaft seal
Example CR E 95 -4 -2 -A -F -H -E -HQQE
Type range:
CR, CRI, CRN, CRT
Pump with integrated frequency
converter
Flow rate [gpm (m3/h)]
Number of impellers
Number of reduced-diameter impellers
CR, CRE, CRN, CRNE 95, 125, 155
Code for pump version
Code for pipe connection
Code for materials
Code for rubber parts
Code for shaft seal
Code Description
Pump version
A Basic version
B Oversized motor
E Pump with certificate
G E-pump without control panel
J E-pump with a different maximum speed
N E-pump with sensor
P Undersized motor
V Cascade function
X Special version
Pipe connection
F DIN flange
FC DIN 11853-2 flange (collar flange)
G ANSI flange
J JIS flange
P PJE coupling (Victaulic type)
X Special version
Materials
A Basic version
H All parts stainless steel, wetted parts EN10088 1.4401 ≈
AISI 316/ASTM 351 - CF8M
R Silicon carbide/Silicon carbide bearing
X Special version
Code for rubber parts in pump
E EPDM
VFKM(Viton
®)
Shaft seal type designation
H Balanced cartridge seal with O-ring
X Special version*
Seal face material
B Carbon, synthetic resin-impregnated
U Cemented tungsten carbide
Q Silicon carbide
X Other ceramics*
Secondary seal material (rubber parts)
E EPDM
VFKM (Viton®)
Example -H -Q -Q -E
Shaft seal type designation
Material of rotating seal face
Material of stationary seal face
Material of secondary seal (rubber parts)