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Grundfos MQ 3-45 - Pipework Connections

Grundfos MQ 3-45
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7
English (US)
8.3 Space requirement
For inspection and service, allow a minimum
clearance of 6" behind the pump.
Fig. 5 Minimum clearance behind the pump
Being self-cooling, the pump requires no space or
ventilation at the sides.
8.4 Pipework
The pump is supplied with 1" NPT screwed
connections. Fit the connections in the suction and
discharge ports. See fig. 6. The pump discharge port
is flexible, ± 5 °, to facilitate the fitting.
Fig. 6 Fitting of screwed connections in suction
and discharge ports
Carefully screw the discharge connection into the
discharge port, using a spanner or similar tool.
Hold the discharge connection, and tighten the pump
discharge union nut with your hand. See fig. 7.
Fig. 7 Correct: Tighten the discharge union nut
with your hand
Fig. 8 Wrong: Do not use a tool to tighten the
discharge union nut
8.4.1 Suction pipes connected to a well
If the pump draws water from a well, we recommend
to fit a foot valve to the end of the suction pipe.
See fig. 9.
Fig. 9 Suction pipes connected to a well
TM04 3746 5008
Note
Ensure that the maximum ambient
temperatures do not exceed the values
stated in section 7. Operating
conditions.
Note
Never use unnecessary force when
connecting the pipes.
TM01 9698 2600
6"
TM04 4271 1009TM 044272 1009TM01 9693 2600
Foot valve

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