Identification; Mtr 1S, 1, 3, 5, 8, 10, 15, 20, 32, 45 And 64; Before Starting An Atex-Approved Pump - Grundfos MTR Series Installation And Operating Instructions, Supplement

5. Identification

5.1 MTR 1s, 1, 3, 5, 8, 10, 15, 20, 32, 45 and
64
The nameplate on the pump head gives the following
details:
• Data for the standard pump
• data for the ATEX marking
– Technical file No
– Serial No
– Ex category.
1 2 3
Type MTR3-4/4 A-W-A-HUUV
A 96515006 P1 0420
Model
11 60
f Hz
12
n 3500
min
13
3,6
m 3 /h
Q
14 p t 25/90
max/ max
15
Technical file no. XXXXXXXX X
16
000001
Serial No.
17
II 3 G Ex h IIB 125°C Gc
0.7
MEI
Fig. 1 Nameplate
Pos. Description
1 Type designation
2 Model
3 Product number
4 Place of production
5 Production code, year and week
6 P
2
7 Closed valve head
8 Head at rated flow rate
Direction of rotation
9 CCW: Counterclockwise
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
15 kept at DEKRA (stated if the pump is ATEX
classified)
The serial number of the pump (stated if
16
the pump is ATEX classified)
ATEX category (stated if the pump is ATEX
17
classified)
4
4 5
0,55
P2 kW 6
38
-1 H m
7
max
27,1 m
H
8
CCW 9
bar/°C
Made in T aiwan
10
--.-
DK - 8850 Bjerringbro, Denmark
6. Before starting an ATEX-approved
pump
This check list must be strictly observed:
1. Check that the ATEX rating of both the motor and
the pump corresponds to the specified category.
See section 4. 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, which is stated on
2
the nameplate.
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
the arrow on the coupling guards or the fan
cover.
7. Check that the liquid temperature never exceeds
the maximum liquid temperature (t
the nameplate.
8. Avoid overheating of the pump.
Do not operate the pump against a closed
outlet valve for more than 5 minutes.
Operation against a closed outlet valve may
cause overheating. Install a bypass with a
pressure-relief non-return valve.
9. The pump must be re-vented in the following
cases:
– The pump has been stopped for a period.
– Air has accumulated in the pump.
10. The pump must not be used for the transfer of
flammable liquids such as diesel oil and petrol.
11. Contact Grundfos if the pump is to be used for
pumping chemical solvents.
) stated on
max