Product Description
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Oleolift-C
2.4.3 Pump station chamber
Waste water arising from the separator chamber flows via the submerged outlet pipe and via
the inlet pipe protruding over the partition into the pump station chamber at a free gradient.
The mounted level sensor (level probe) for the level switching is connected to the control unit.
If necessary, the submerged pumps can be switched on and off or the flood alarm can be
triggered.
The water level in the pump station is shown in the display panel of the control unit.
If the water level reaches the base load (BL), then a submerged pump switches on and pumps
the wastewater through the pressure pipe above the
“Pipe base, backflow loop” level. From
there the wastewater flows by gravity to the drainage sewer.
Two ball retaining valves prevent a backflow from the pressure pipe and into the pump station
chamber.
If the water level falls to the pump OFF (OFF) level, then the submerged pump switches off. With
a set stop delay period (SDP), the submersible pump remains activated and the water level
continues to be lowered to the stop delay period OFF (SDP OFF) level.
The pump station chamber is equipped with two submerged pumps:
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With each new start, alternating operation is executed.
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If one submerged pump fails, then the second submerged pump switches on.
■
If the wastewater inflow is higher than the delivery performance of one submerged
pump and the water level rises to the peak load (PL) level, then the second submersible
pump also switches on.