7. When there is a steady
outflow of liquid from the
exhaust valve, close the
exhaust valve. At this time,
open the outlet valve fully.
8. For more details, please
refer to the vertical
multi-stage pump manual.
4.1.2 Pressure Tank (if install)
Note: if there is no pressure tank in the fire pump package system, please ignore this part. If
there is a pressure tank, please use it as required.
1. The pre-charging pressure of the pressure tank has been set before delivery, and the
pressure is 4bar. If the user thinks that the pressure is not suitable, charge/vent can be
done under the guidance of the supplier；
2. The working temperature and maximum working pressure are indicated on the label of
pressure tank body. It is strictly prohibited to use beyond this range；
3. The working medium of pressure tank is generally a mixture of water or antifreeze；
4. The pressure tank should be inspected regularly for its pre filling pressure, and if the
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