CRE20-07 A-F-A-E-HQQE 3x400 50 HZ
info@lenntech.com
tel. +31-15-261.09.00
fax. +31-15-261.62.89
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Position Qty. Description
1 CRE 20-7 A-F-A-E-HQQE
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
Note! Product picture may differ from actual product
Product No.: 96512877
Vertical, multistage centrifugal pump with suction and discharge ports on same the level (in-line) enabling installation in a horizontal one-pipe system. The pump head and base are in cast iron – all other wetted parts are in stainless steel. A cartridge shaft seal ensures high reliability, safe handling and easy service and access. Power transmission is via a split coupling. Pipework connection is via
DIN flanges.
The pump is fitted with a 3-phase, fan-cooled asynchronous motor.
The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement.
An external sensor can be connected if controlled pump operation based on for example flow, differential pressure or temperature is required.
The product carries the Grundfos Blueflux® label. It represents the best from Grundfos within energy-efficient motors and frequency converters. Grundfos Blueflux® solutions either meet or exceed legislative requirements such as the EuP IE3 grade.
Steel, cast iron and aluminium components have an epoxy-based coating made in a cathodic electro-deposition (CED) process. CED is a high-quality dip-painting process where an electrical field around the products ensures deposition of paint particles as a thin, well-controlled layer on the surface. An integral part of the process is a pretreatment. The entire process consists of these elements:
1) Alkaline-based cleaning.
2) Zinc phosphating.
3) Cathodic electro-deposition.
4) Curing to a dry film thickness 18-22 my m.
The colour code for the finished product is NCS 9000/RAL 9005.
A standard split coupling connects the pump and motor shaft. It is enclosed in the pump head/motor stool by means of two coupling guards.
Printed from Grundfos CAPS [2013.03.059]
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Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
The pump head, pump head cover and flange for motor mounting is made in one piece. The pump head has a combined 1/2" priming plug and air vent screw.
The pump is fitted with a balanced O-ring seal unit with rigid torque transmission system. This seal type is assembled in a cartridge unit which makes replacement safe and easy. Due to the balancing, this seal type is suitable for high-pressure applications. The cartridge construction also protects the pump shaft from possible wear from a dynamic O-ring between pump shaft and shaft seal.
Primary seal:
Rotating seal ring material: Silicon carbide (SiC)
Stationary seat material: Silicon carbide (SiC)
This material pairing is used where higher corrosion resistance is required. The high hardness of this material pairing offers good resistance against abrasive particles.
Secondary seal material: EPDM (ethylene-propylene rubber)
EPDM has excellent resistance to hot water. EPDM is not suitable for mineral oils.
The shaft seal is screwed into the pump head.
The chambers and impellers are made of stainless steel sheet. The chambers are provided with a
PTFE neck ring offering improved sealing and high efficiency. The impellers have smooth surface, and the shape of the blades ensure a high efficiency.
The base is made of cast iron. The flanges and base are cast in one piece. The discharge side of the base has a drain plug. The pump is secured to the foundation by four bolts through the base plate.
Printed from Grundfos CAPS [2013.03.059]
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Printed from Grundfos CAPS [2013.03.059]
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
The motor is a totally enclosed, fan-cooled motor with principal dimensions to IEC and DIN standards. The motor is flange-mounted with free-hole flange (FF).
Motor mounting designation in accordance with IEC 60034-7: IM B 5 (Code I) / IM 3001 (Code II).
Electrical tolerances comply with IEC 60034.
The motor requires no external motor protection. The motor control unit incorporates protection against slow- and quick-rising temperatures, e.g. constant overload and stalled conditions.
Liquid:
Pumped liquid:
Liquid temperature range:
Liquid temp:
Density:
Water
253 .. 393 K
293 K
998.2 kg/m³
Technical:
Speed for pump data:
Rated flow:
Rated head:
Shaft seal:
Approvals on nameplate:
Materials:
Pump housing:
2919 rpm
21 m³/h
81.7 m
HQQE
CE,TR
Impeller:
Cast iron
EN-JL1030
ASTM A48-30 B
Stainless steel
DIN W.-Nr. 1.4301
AISI 304
Installation:
Maximum ambient temperature: 313 K
Max pressure at stated temp:
Flange standard:
Pipe connection:
Pressure stage:
Flange size for motor:
16 bar / 120 °C
16 bar / -20 °C
DIN
DN 50
PN 16
FF265
Electrical data:
Motor type:
Number of poles:
Rated power - P2:
132SB
2
7.5 kW
Power (P2) required by pump: 7.5 kW
Mains frequency: 50 Hz
Rated voltage:
Rated current:
Cos phi - power factor:
Rated speed:
Efficiency:
Enclosure class (IEC 34-5):
Insulation class (IEC 85):
3 x 380-480 V
14,8-11,6 A
0,94-0,95
480-3500 rpm
IE3 90,1%
IP55
F
Others:
Label: Grundfos Blueflux
Minimum efficiency index, MEI ≥: 0.7
3/8

Position Qty. Description
Net weight:
Gross weight:
103 kg
131 kg
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
Printed from Grundfos CAPS [2013.03.059]
4/8

Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
96512877 CRE 20-7 50 Hz
H
[m]
CRE 20-7, 3*400 V, 50Hz
Pumped liquid = Water
Liquid temperature = 293 K
Density = 998.2 kg/m³ eta
[%]
50
40
30
20
110
100
100 %
90
80
70
60
10
25 %
0
0
P
[kW]
10
2 4 6
8
6
20
8 10 12 14 16 18 20 22 24 26 28 Q [m³/h]
0
NPSH
[m]
10
P1
8
P2
6
60
40
100
80
4
2
4
2
0
Printed from Grundfos CAPS [2013.03.059]
0
5/8

Description
Product name:
Product No:
EAN number:
Technical:
Speed for pump data:
Rated flow:
Rated head:
Impellers:
Shaft seal:
Approvals on nameplate:
Stages:
Pump version:
Model:
Materials:
Pump housing:
Value
CRE 20-7 A-F-A-E-HQQE
96512877
5700396620152
2919 rpm
21 m³/h
81.7 m
07
HQQE
CE,TR
07
A
A
Impeller:
Material code:
Code for rubber:
Installation:
Maximum ambient temperature:
Max pressure at stated temp:
Flange standard:
Connect code:
Pipe connection:
Pressure stage:
Flange size for motor:
Liquid:
Pumped liquid:
Liquid temperature range:
Liquid temp:
Density:
A
E
Cast iron
EN-JL1030
ASTM A48-30 B
Stainless steel
DIN W.-Nr. 1.4301
AISI 304
313 K
16 bar / 120 °C
16 bar / -20 °C
DIN
F
DN 50
PN 16
FF265
Water
253 .. 393 K
293 K
998.2 kg/m³
Electrical data:
Motor type:
Number of poles:
Rated power - P2:
Power (P2) required by pump:
Mains frequency:
Rated voltage:
Rated current:
Cos phi - power factor:
Rated speed:
Efficiency:
Enclosure class (IEC 34-5):
Insulation class (IEC 85):
Motor protec:
Motor No:
132SB
2
7.5 kW
7.5 kW
50 Hz
3 x 380-480 V
14,8-11,6 A
0,94-0,95
480-3500 rpm
IE3 90,1%
IP55
F
NONE
85757522
Others:
Label: Grundfos Blueflux
Minimum efficiency index, MEI ≥: 0.7
Net weight:
Gross weight:
Config. file no:
103 kg
131 kg
95139496
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
H
[m]
110
100
100 %
90
80
70
60
50
40
30
20
10
P
[kW]
0
0
25 %
10
5 10 15
CRE 20-7, 3*400 V, 50Hz
Pumped liquid = Water
Liquid temperature = 293 K
Density = 998.2 kg/m³
20 25 Q [m³/h] eta
[%]
P1
P2
100
80
60
40
20
0
NPSH
[m]
10
5 5
0 0
391 677
ø165
ø125
20
90
96086116
A:RS485
A
Y:SHIELD
B:RS485
B
0-10V
0/4-20m
A
4-20m
A
7: SENSOR INPUT
8: +24V
9: GND
1: DIGITAL INPUT
0/ 1
CONNECTION FOR
GRUNDFOS SENSOR
OPTIONAL
SUPPLY:
SEE NAMEPLATE
FOR FUTHER DATA
SIGNAL RELAY:
Max:250V/2A AC1
Min: DC 5V/1mA
0/4-20m A
STOP
RUN
0-10V
10K
2: RUN/STOP
3: GND
4: SETPOINT
5: +10V
6: GND
CONNECTION
FOR PC-TOOL
Printed from Grundfos CAPS [2013.03.059]
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96512877 CRE 20-7 50 Hz
213
260
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
G 1/2
G 1/2
300
G 1/2
ø18.1
130
176
300
Note! All units are in [mm] unless others are stated.
Disclaimer: This simplified dimensional drawing does not show all details.
Printed from Grundfos CAPS [2013.03.059]
215
256
ø65
4 x ø13.5
7/8

96512877 CRE 20-7 50 Hz
Company name: Lenntech BV - lenntech.com
Created by: info@lenntech.com
Phone:
Fax:
Date: -
+31 15 2610900
+31 15 2616289
L1 L2 L3 NC C NO
Note! All units are in [mm] unless others are stated.
Printed from Grundfos CAPS [2013.03.059]
-
+OUT
+OUT
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All information is copyright Grundfos.
info@lenntech.com
www.lenntech.com
tel. +31-15-261.09.00
fax. +31-15-261.62.89