A750-04-880 Issue F
Page 16
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INSTALLATION
All pumps are fitted with earth (ground) studs. You must use these studs to connect the pump to a suitable
earth (ground) to prevent a potential ignition source: refer to
ATEX Category 2 pumps configured for internal seals flush supplies must only be used on clean applications.
On ATEX Category 2 pumps, if you use a sealing liquid which has a boiling point higher than 100
o
C, the pump
must be fitted with a temperature transmitter that measures the sealing liquid temperature. This
transmitter must be used to switch off the pump in the event that the sealing liquid temperature exceeds
70
o
C. You must connect the temperature transmitter to an ATEX safety control circuit, configured to stop
the pump in the event of high sealing liquid temperature. Note also that:
The temperature transmitter must be a high integrity device and must ‘fail to safety’ in accordance with
Annex II Section 1.5 of Directive 94/9/EC.
3.2
Safety
A suitably trained and supervised technician must install the pump.
Wear the appropriate safety-clothing when you come into contact with contaminated components.
If your pumping system has already been used, vent and purge it before you start installation work.
Ensure that the installation technician is familiar with the safety procedures which relate to the sealing/
seals flush liquid(s) and to the products handled by the pumping system.
Disconnect the other components in the pumping system from the electrical supply/drive system so that they
cannot be operated accidentally.
WARNING
If you use a water-based sealing liquid, harmful bacteria (such as Legionella) could propagate
inside the pump and sealing liquid supply system. Take suitable precautions to inhibit bacterial
growth and to ensure that untreated bacteria-bearing mist is not discharged from the system.
WARNING
Obey the safety instructions listed below and take note of appropriate precautions when you
install the pump.
Table 14 - Maximum radial shaft loads and maximum inlet/outlet loads and moments
Pumps
Drive shaft
diameter:
mm
Maximum
radial shaft
load: N
Maximum
external load
on inlet/
outlet
connection:
N
Maximum
external
moment on
inlet/outlet
connection:
Nm
EHR 2102S/C/D, 2170S/C/D
EHR 2190S/C/D, 2290S/C/D, 2390S/C/D
25
35
2000
3200
280
440
170
270
SHR 1300S/C/D, 2300S/C/D, 1400S/C/D, 2400S/C/D
SHR 1750S/C/D, 2750S/C/D, 1950S/C/D, 2950S/C/D
SHR 21200S/C/D, 11500S/C/D, 21500S/C/D,
11850S/C/D, 21850S/C/D
SHR 12500S/C/D, 22500S/C/D
40
60
80
110
4100
5800
9400
14500
570
880
1330
1770
350
540
810
1080
