Identification; Mtr 1S, 1, 3, 5, 10, 15 And; Mtr 32, 45 And; Before Starting An Atex-Approved Pump - Grundfos MTR Serie Instrucciones De Operación

4. Identification

4.1 MTR 1s, 1, 3, 5, 10, 15 and 20

The nameplate on the pump head gives the following details:
• Data for the standard pump and
• data for the ATEX marking
- Technical file no.
- Serial no.
- Ex category.
1 2 3
MTR3-4/4 A-W-A-HUUV
Model
A96515006P10420
11 f Hz
60
-1
12
n min
3500
3
13
Q m /h
3,6
p /t
14 max max 25/90
15
Technical file no. XXXXXXXX
16
Serial No.
000001
o
17
II 2 G c 90 C
Pos. Description
1 Type designation
2 Model
3 Product number
4 Place of production
5 Production year and week
6 P
2
7 Closed valve head
8 Head at rated flow rate
Direction of rotation
9 CCW: Counter-clockwise
CW: Clockwise
10 Country of production
11 Frequency
12 Speed
13 Rated flow rate
14 Maximum pressure and temperature
The number of the copy of the technical file kept at
15
KEMA (stated if the pump is ATEX classified)
The serial number of the pump (stated if the pump is
16
ATEX classified)
17 ATEX category (stated if the pump is ATEX classified)

4.2 MTR 32, 45 and 64

The nameplate on the pump head gives details of the standard
pump:
Type
Model
3
Q m/h 3
4
H m
5
-1
n min
9
t
10
988349
4 5
P kW 6
0,55
2
7
m
H 38
max
8
H m
27,1
9
bar/˚C CCW
10
Made in Taiwan
DK-8850 Bjerringbro
1
2
6
Q m/h 3
7
H m
8
-1
n min
0 C
MAX
The label on the motor gives additional data for the ATEX marking:
• Technical file no.
• Serial no.
• Ex category.
DK-8850 Bjerringbro, Denmark
Technical file no.:
96499604
Serial No. 799485
II 2G c 125 ˚ C
Pos. Description
1 Type designation
2 Model
3 Rated flow rate, 50 Hz
4 Closed valve head, 50 Hz
5 Speed, 50 Hz
6 Rated flow rate, 60 Hz
7 Closed valve head, 60 Hz
8 Speed, 60 Hz
9 Maximum temperature
10 Country of production
11 Country of production
The number of the copy of the technical file kept at
12
KEMA (stated if the pump is ATEX classified)
The serial number of the pump (stated if the pump is
13
ATEX classified)
14 ATEX category (stated if the pump is ATEX classified)

5. Before starting an ATEX-approved pump

This check list must be strictly observed:
1. Check that the ATEX rating of both motor and pump corre-
sponds to the specified category.
See section 3. Scope of ATEX categories for MTR pumps.
If the motor and pump categories differ, the lower rating is
valid.
2. Check that the motor output power corresponds to the
required P of the pump, see nameplates.
2
3. Check that the rubber parts of the pump are as ordered, see
nameplates.
4. Check the alignment of the chamber stack.
- Check that the shaft can rotate freely.
There must be no mechanical contact between impeller and
chamber.
5. Check that the pump has been filled with liquid.
The pump must never run dry.
6. Check the direction of rotation of the motor, see arrow on the
coupling guards or the fan cover.
7. Check that the liquid temperature never exceeds the maxi-
mum liquid temperature (t
max
8. Avoid overheating of the pump.
Operation against a closed discharge valve may cause over-
heating. Install a bypass with a pressure-relief non-return
valve.
9. The pump must be re-vented
- if the pump has been stopped for a period or
- if air has accumulated in the pump.
10. The pump must not be used for the transfer of inflammable
liquids such as diesel oil and petrol.
11
12
13
14
) stated on the nameplate.
Subject to alterations.
7