Vogelsang VX136Q - Pump Systems; Pumps with Injectionsystem; Fig. 9: Flow Direction with Pump Units

Assembly
26
WBV.PU.002.EN VX136Q V2.0
6.3.3 Pump systems
The pressure and suction sides are rigidly defined by the rotation of the pumps. When there are suction
difficulties, it is possible to draw in through the discharge side. A reversal of the flow direction is not possible
if the pipelines are protected by automatic check valves.
WARNING
Risk of injury from medium escaping under high pressure!
If a connector has a sight glass, the sight glass may burst if the pressure is too high.
A connector with a sight glass must be installed on the suction side. The pressure may not exceed max. 2
bar during reverse pumping.
A Sight glass
Fig. 9: Flow direction with pump units
6.3.4 Pumps with InjectionSystem
 Chapter "Specifications" – "InjectionSystem"
Injection S (Symmetrical InjectionSystem)
With the symmetrical InjectionSystem, the flow can be in either direction.
Injection A (Asymmetrical InjectionSystem)
With the asymmetrical InjectionSystem, the flow direction is set in advance. A brief reverse operation is
possible.