9 Start up
WARNING!
EX pumps in areas at risk from explosion
– An appropriately skilled operative should check whether
the appropriate installation information from the "Installa‐
tion " chapter has been implemented correctly.
WARNING!
Fire hazard with flammable media
Only with combustible media: These may start to burn when
combined with oxygen.
– During filling and draining of the liquid end, an expert
must ensure that feed chemical does not come into con‐
tact with oxygen.
CAUTION!
Feed chemical could escape
– Check suction and discharge lines and liquid end with
valves for leak-tightness and tighten if necessary.
– Check whether the necessary flushing pipes or bleed
lines have been connected.
CAUTION!
Prior to commissioning, check that the power end motor and
corresponding ancillary equipment is connected in compli‐
ance with the regulations.
CAUTION!
When using pumps with speed control, observe the instruc‐
tions in the frequency converter operating instructions.
CAUTION!
Danger resulting from unnoticed diaphragm rupture
If the pump has been ordered with an electric diaphragm rup‐
ture sensor, it still has to be installed.
– Screw the enclosed diaphragm rupture sensor into the
liquid end.
CAUTION!
Warning of unnoticed diaphragm rupture
Only above approximately 2 bar system back pressure is a
signal generated upon a diaphragm rupture.
– Only rely on the diaphragm rupture sensor at back pres‐
sures greater than 2 bar.
Safety notes
Diaphragm rupture sensor
Start up
28
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