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It
is designed to suit the use with Multistage pump in
under ground Autogas Stations. The vacuum pump
starts to run prior to Multistage Pump. This
system works automatically with time roll and cope
with Electric Pump. During Dispensing when the
button is pressed, the Vacuum Pump will work first
for 30 seconds and after that the Vacuum Pump
stops automatically and the Multistage Pump will
start to work. By means of the Vacuum Pump the
dispensing line will be full of liquid whenever
the Multistage Pump starts to work. The delivery
line of Vacuum Pump is attached to the top of the
difisor which is in the front of Multistage Pump.
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