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Installation, hydraulic
7.1 Basic installation notes
Safety information
Standard installation
Tab. 3: Legend for hydraulic diagram
Symbol
Explanation
Metering pump
Injection valve
Back pressure valve or safety valve
34
Rupturing hydraulic components
Hydraulic components can rupture if the maximum permissible oper‐
n
ating pressure of the hydraulic parts is exceeded.
Never allow the metering pump to run against a closed shut-off
n
device.
With metering pumps without integral relief valve: Install a relief valve
n
in the pressure line.
Hazardous feed chemicals can escape
With hazardous feed chemicals: Hazardous feed chemical can leak
n
out when using conventional bleeding procedures with metering
pumps.
Install a degassing line with a return line into the supply tank.
n
Shorten the return line so that the line is not immersed in the feed
chemical in the supply tank.
A)
1
2
Fig. 18: (A) Standard installation, (B) with pulsation damper
1
Main line
2
Supply tank
Symbol
B)
1
PD
*
2
Explanation
Foot valve with filter mesh
Level switch
Manometer
P_MOZ_0043_SW
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