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English (GB)
9
5.3 Minimum flow rate
Due to the risk of overheating, the pump should
not
be used at flows below the minimum flow rate.
The curve below shows the minimum flow rate as a
percentage of the nominal flow rate in relation to the
liquid temperature.
Fig. 5
Minimum flow rate in relation to
temperature
Note:
The pump must never operate against a
closed discharge valve.
5.4 Electrical data
See motor nameplate.
5.5 Maximum number of starts
6. Installation
6.1 Pump location
The pump is designed for tank mounting in vertical
and horizontal position. However, only MTR version
H and MTRE version H are suitable for horizontal
mounting.
The pump is positioned in a hole cut into the tank
and is secured to the tank by four hexagon head
screws through the holes in the mounting flange.
Fig. 6
Vertical and horizontal installation
On horizontally installed MTR, MTRE pumps with
motors from 5.5 kW and up the motors have feet and
must be supported.
Fig. 7
Horizontally installed MTR with foot
TM
04 56
93 380
9
Motor size
[kW]
Recommended maximum
number of starts per hour
0.06 - 0.18
100
0.25 - 2.2
250
3-4
100
5.5 - 11
50
15-22
40
30-45
8
40 50 60 70 80 90 100 110 120
t [°C]
0
10
20
30
Qmin
[%]
Warning
The pump must be installed so that
persons cannot accidentally come into
contact with the hot surface of the motor.
TM
01
49
90
13
99
TM
04
57
55
38
09
Caution
For horizontally mounted pumps ensure a
sufficient sealing between pump flange
and tank. A sealing gasket will usually
suffice.
Caution
Before changing shaft seals for
horizontally mounted pumps, drain the
tank.
Caution
MTR 32, 45 and 64 pumps can only be
installed in vertical position.
Vertical
Horizontal
Содержание CRK Series
Страница 1: ...CRK MTR Installation and operating instructions GRUNDFOS INSTRUCTIONS...
Страница 2: ...2...
Страница 90: ...RU 90 4 2 CRK 2 2 CRK E 4 160 2 x x x xxxx 3 x 10 TM01 4991 1299...
Страница 98: ...RU 98 12 1 a b c d e f g 2 a b c d e f 3 a b 4 a 1 a b d e f...
Страница 101: ...Appendix 101 MTR 32 45 64 TM01 9785 3100 TM01 9786 3100 TM01 9788 3100 1 7 mm M10 x 2 5 62 Nm MTR32 MTR45 MTR64...
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