CAUTION!
Hazardous feed chemicals can escape
With hazardous feed chemicals: Hazardous feed
chemical can leak out when using conventional
bleeding procedures with metering pumps.
– Install a bleed line with a return into the storage
tank.
Shorten the return line so that it does not dip into the feed
chemical in the storage tank.
Fig. 11: Standard installation
1 Main line
2 Storage tank
Symbol Explanation Symbol Explanation
Metering pump Foot valve with filter meshes
Injection valve Level switch
Multifunctional valve Manometer
Legend for hydraulic diagram
Installation, hydraulic
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