English (GB)
5
Accessories
We recommend the following accessories.
*
The Unilift CC pump is supplied with a non-return
valve.
3. Installing the product
3.1 General guidelines
The guidelines for correct mechanical installation of
lifting station are according to EN 12056-4.
•
If the lifting station is installed in a basement with
recurrent penetration of groundwater, we
recommend that you install a drainage pump in a
separate pump sump below floor level. In some
countries the drainage pump is mandatory. If
there is only a risk of penetrating groundwater,
we recommend that you install a float switch
outside the lifting station and connect it to a
controller which indicates high-level alarm in
case of flooding.
•
Fix the tank to the floor.
•
We recommend that you connect a diaphragm
pump to the tank to be able to empty the tank
manually.
•
All outlet pipes from the lifting station, diaphragm
pump and drainage pump must have a backflow
loop, i.e. a bend above the local backflow level.
Commonly, the highest point of the bend must be
above street level. See fig.
•
Surface water must not be discharged into the
lifting station inside the building. Collect and
discharge surface water outside the building.
•
Install a non-return valve at the outlet of the lifting
station to prevent backflow.
•
Fit isolating valves at the inlet and outlet of the
lifting station.
•
The volume of the outlet pipe above the non-
return valve up to the backflow loop must be
smaller than the effective tank volume. See pos.
7 in figures
and
•
In general, a lifting station for black wastewater
must be vented above roof level. However, it is
permitted to lead the vent pipe into the main
building ventilation system. Place special two-
way venting valves outside the building.
•
If the wastewater is discharged into a collecting
line, the collecting line must have a filling ratio of
at least h/d = 0.7. The collecting line must be at
least one nominal diameter bigger after the outlet
pipe connection.
•
Use 45 ° bends to avoid deposits in the pipes.
Outlet pipe
Designation
Quantity
Unolift
Duolift
CC/
KP
APB/
SEG
CC/
KP
APB/
SEG
Non-
return
valve
-*
1
-*
2
Double
nipple
-
1
3
5
Isolating
valve
1
1
1
1
Union nut
-
-
2
2
T-piece,
PVC, 90 °
-
-
1
1
Elbow,
PVC, 90 °
-
-
2
2
Pipe,
∅
50, 2 m
-
-
1
1
Thread
tape
1
1
1
1
Содержание DUOLIFT APB Series
Страница 1: ...UNOLIFT DUOLIFT Installation and operating instructions GRUNDFOS INSTRUCTIONS...
Страница 11: ...English GB 11 TM05 9633 3913 TM05 9632 3913 Fig 13 Unilift AP35B AP50B Fig 14 SEG x4...
Страница 22: ...Appendix 22 Appendix 1 Fig 1 Unolift 270 Duolift 270 TM06 1067 1514...
Страница 23: ...Appendix 23 Fig 2 Duolift 540 TM06 1066 1514...
