Basic Installation Notes - ProMinent Sigma X Operating Instructions Manual

7.1.3 Basic installation notes

Safety information
Legend for hydraulic diagram
Symbol Explanation
Metering pump
Injection valve
Back pressure valve or safety valve
CAUTION!
Danger from rupturing hydraulic components
Hydraulic components can rupture if the maximum per‐
missible operating pressure is exceeded.
– Never allow the metering pump to run against a
closed shut-off device.
– With metering pumps without integral relief valve:
Install a relief valve in the discharge line.
CAUTION!
Hazardous feed chemicals can escape
With hazardous feed chemicals: Hazardous feed chem‐
ical can leak out when using conventional bleeding pro‐
cedures with metering pumps.
– Install a bleed line with return line into the storage
tank.
Shorten the return line so that it is not immersed in the feed chem‐
ical in the storage tank.
A)
1
2
Fig. 21: (A) standard installation, (B) with pulsation damper
1 Main line
2 Storage tank
Symbol
B)
1
PD
*
2
Explanation
Foot valve with filter mesh
Level switch
Manometer
Installation
P_MOZ_0043_SW
31