Grundfos BMST Series Installation And Operating Instructions Manual page 7

4.1.6 Position of the inlet pipe
If you want to change the position of the pipe, follow this
procedure.
Step Description
Remove M10 bolts.
1
Loosen M12 bolts.
Mark up the pump
2
sleeve and union nut.
Turn the inlet pipe to
the needed position,
3
and make sure the
union nut follows.
4 Check the marking.
Fit all bolts again.
5 Tighten all bolts to
33 Nm.
Fasten the support
6 foot to the
foundation.
Picture
4.1.7 Flushing the system
To avoid impurities in the pump, flush the pipes
Caution
before you connect the pump inlet and discharge
pipes.
4.1.8 Pipe connection
Both the inlet and the discharge pipe are fitted with clamp liners
for Victaulic couplings and must be supported close to the end of
the pipe.
Pipe support
Fig. 7
Caution
Avoid stress in the pipe system.
When fitting the couplings, it is important to allow a gap of 3.5 mm
between the two pipes. See fig. 8.
Service connector
Gap between pipes
Fig. 8
7