Product Introduction; Applications; Pumped Liquids; Identification - Grundfos CRK Guía De Instalación Y Funcionamiento

5. Product introduction

5.1 Applications

The Grundfos pumps, types CRK and MTR, are tank
mounted multistage centrifugal pumps designed for
the following applications:
• liquid transfer in machine tools
• condensate transfer
• liquid transfer in industrial washing machines
• pressure boosting of cold or hot clean liquids
• similar applications.

5.2 Pumped liquids

Thin, non-explosive liquids, not containing fibres.
The liquid must not attack the pump materials
chemically.
When pumping liquids with a density and/or viscosity
higher than that of water, use motors with
correspondingly higher outputs, if required.
MTR version A pumps have a cast iron pump head.
In MTR version I and CRK version I pumps all parts
in contact with the pumped liquid are of stainless
steel EN/DIN 1.4301 or better.

5.3 Identification

5.3.1 Nameplate for CRK and MTR
1 2 3
Type
MTR10-6/3 A-W-A-HUUV
Model A 96889995 P1 1019
12
f 50 Hz
13
n 2853 min
14
3
Q 10 m /h
15
p t 25/90
/
max max
16
17
Serial No. 0001
18
p --.-
MEI 0.70
19 20
Fig. 1 Example of nameplate
Pos. Description
1 Type designation
2 Model
3 Product number
4 Place of production
5 Production year and week (YYWW)
6 P2, 50 Hz
7 Head against closed valve
8 Head at rated flow rate
Direction of rotation
9 CCW: Counterclockwise
CW: Clockwise
10
4 5
6
P2 1.1 kW
7
-1
H 30.3 m
max
8
H 22.7 m
°
bar/ C CCW
9
Made in Hungary
10
11
DK-8850 Bjerringbro, Denmark
Pos. Description
10 Country of production
11 Approval marks
12 Frequency
13 Speed
14 Rated flow rate
15 Maximum pressure and temperature
The number of the copy of the technical
16 file kept at KEMA (stated if the pump is
ATEX classified)
The serial number of the pump (stated if
17
the pump is ATEX classified)
ATEX category (stated if the pump is
18
ATEX classified)
19 Minimum efficiency index
20 Hydraulic pump efficiency
5.3.2 Type key for CRK
Example CRK E 4 - 160 / 2 -x -x -x -xxxx
Pump type
Pump with integrated
frequency control
3
Rated flow rate [m /h]
*
Number of chambers x 10
*
Number of impellers
Code for pump version
Code for pipe connection
Code for materials
Code for shaft seal and rubber pump parts
*
See fig. 2.
Number of
chambers
Fig. 2 Number of chambers / impellers
Number of
impellers