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3.2.2 Mechanical installation
3.2.2.1 Installing the pumps
The description below is for a system with isolating valves and a non-return valve.
Torques for flanges +/- 5 Nm
Nominal diameter
DN 80
DN 100
DN 150
*1
Slightly lubricated threads
*2
Well-lubricated threads
1. Fit an isolating valve to the tank.
The isolating valves can be made of cast iron or PVC. The end of the PVC valve can be
pushed directly into the socket with a plug-in seal.
2. Connect the pump to the isolating valve.
3. Fasten the pump to the floor using the dowels and screws supplied with the lifting station.
4. Fit the vent flange to the pump outlet flange.
5. Drill a hole in the tank connection for the vent hose.
6. Connect the vent hose to the vent flange and to the tank.
7. Fit a non-return valve to the vent flange. Lifting stations must be provided with an approved
non-return valve according to EN 12050-4.
8. Fit an isolating valve to the non-return valve.
9. Install the second pump by following the steps above.
Example:
CAUTION
Back injury
Minor or moderate personal injury
● Use lifting equipment.
CAUTION
Crushing of feet
Minor or moderate personal injury
● Wear safety shoes when moving the product.
Make sure that the weight from the inlet, outlet and vent pipes does not rest on
the tank. Long pipe sections and valves must be supported.
Screws
8 x M16
8 x M16
8 x M20
*1
Torque [Nm]
70
70
140
Multilift MD1, MDV | | 10
*2
Torque [Nm]
60
60
120
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