Grundfos SE1 50 Notice D'installation Et De Fonctionnement page 14

5.1 Installation types
SE1 and SEV pumps are designed for the
following installation types:
• submerged installation:
- vertically on auto coupling
- vertically, free-standing on a ring stand.
• dry installation:
- vertically on a base stand
- horizontally with brackets secured to a
concrete floor or foundation.
For WIO-sensor versions, the outlet pipe must be
directed upwards to ensure proper operation of
the sensor.
All Ex pumps are equipped with a WIO
sensor.
In case of dry, horizontal installation,
FM
the outlet pipe must be directed
upwards to ensure the proper
operation of the WIO sensor.
5.1.1 Submerged installation
Pumps for permanent installation can be installed
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.
Before installation, make sure that the
FM
atmosphere in the tank is not
potentially explosive.
Make sure that the pipes are installed
without the use of undue force. No
loads from the weight of the pipes must
be carried by the pump. Use loose
flanges to ease the installation and to
avoid pipe tension at flanges and bolts.
Do not use elastic elements or bellows
in the pipes. These elements must
never be used to align the pipes.
The guide rails must not have any axial
play as this would cause noise during
operation.
14
Submerged installation on auto coupling