Installation; Installation Types; Submerged Installation On Auto Coupling - Grundfos DPK.10.50.075 Installation And Operating Instructions Manual

10. Installation

Check these points before beginning installation
procedures:
• Does the pump correspond to order.
• Is the pump suitable for the supply voltage and
frequency available at the installation site.
• Are accessories and other equipment
undamaged during transportation.
Warning
Observe all safety regulations at the
installation site.
Use blowers for fresh-air supply to the
tank.
Prior to installation, check the oil level in the oil
chamber. See section 14. Maintenance, inspection
and overhaul.
The DPK pumps are suitable for different installation
types which are described in sections
10.2 Submerged installation on auto coupling and
10.3 Free-standing submerged installation.
All pump housings can be connected to JIS flange,
hose coupling and auto coupling.
The pumps are designed for operation
Caution
in vertical position only.

10.1 Installation types

DPK pumps are suitable for two types of installation:
• submerged installation on auto-coupling
• free-standing submerged installation.

10.2 Submerged installation on auto coupling

Pumps for permanent installation can be mounted on
a stationary auto-coupling guide rail system.
The auto-coupling system facilitates maintenance
and service as the pump can easily be lifted out of
the tank. See fig. 4.
Fig. 4 Submerged pump on auto-coupling
Intallation procedure:
1. Fit the guide rail bracket on the inside of the tank
and fasten it provisionally with anchor bolts.
2. Place the auto-coupling base unit on the bottom
of the tank. Use a plumb line to establish the
correct positioning. Fasten with heavy-duty
expansion bolts. Support the auto-coupling base
unit so that it is level when being fastened.
3. Connect the discharge line without exposing it to
distortion or tension.
4. Insert the guide rails in the auto-coupling base
unit and adjust the length of the rails accurately
to the guide rail bracket.
5. Unscrew the provisionally fastened guide rail
bracket and fit it on top of the guide rails.
Fasten the bracket firmly to the tank wall.
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