Table of Contents
Advertisement
7.2 Priming
7.3 Interruption to operation
1.
To start the double diaphragm pump, open the air valve by
approximately a 1/2 ... 3/4 turn.
2.
INFO: Cavitation. Cavitation has occurred if opening the air
valve causes the stroke rate of the double diaphragm pump
to increase, but not the flow volume passing through the
double diaphragm pump. Close the air valve slightly so that
the air consumption and the feed rate of the double dia‐
phragm pump are at an optimum ratio to each other.
Once the double diaphragm pump is filled with liquid, open
the air valve further to produce the required air flow.
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious inju‐
ries.
Please ensure when handling hazardous sub‐
stances that you have read the latest safety data
sheets provided by the manufacture of the haz‐
ardous substance. The actions required are
described in the safety data sheet. Check the
safety data sheet regularly and replace, if neces‐
sary, as the hazard potential of a substance can be
re-evaluated at any time based on new findings.
The system operator is responsible for ensuring
that these safety data sheets are available and that
they are kept up to date, as well as for producing
an associated hazard assessment for the worksta‐
tions affected.
1.
Flush through the double diaphragm pump after every use if
liquids are used which have a tendency to form deposits or
solidify when stationary.
ð This will avoid damage to the double diaphragm pump.
INFO: Deposits. Liquid residue in the double diaphragm
pump may dry out and form deposits. When restarting
the double diaphragm pump, these deposits can lead to
problems at the diaphragms and the ball valves.
2.
At temperatures below 0 °C, make sure that the double dia‐
phragm pump is always completely drained after use.
Commissioning
19
Advertisement
Table of Contents
