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Grundfos MQ Booster Pump

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Description

Product Information
The Grundfos MQ is a compact pump and pressure
boosting unit, purpose-designed for domestic water
supply and other applications where a compact and
reliable, easy-to-install pump is advantageous. The
MQ is a self-priming multistage centrifugal pump; it
self-primes from a well depth of down to 26 ft (8 m)
within 5 minutes.

The MQ is a complete, all-in-one unit, incorporating
pump, motor, diaphragm tank, pressure and flow
sensor, controller and check valve.
Fig. 15 Grundfos MQ
Applications
MQ is suitable for pressure boosting of potable water
and rain water for:
• water pressure boosting
(max. inlet pressure 40 psi (2.8 bar)
• water supply from wells
(max. suction lift: 26 ft (8 m).
Examples of ideal applications for MQ are:
• private homes
• farms
• market gardens and other large gardens.
Pumped liquids
The MQ is suitable for pumping potable water, rain
water, or other clean, thin, non-aggressive liquids not
containing solid particles or fibers.
Features and benefits:
Complete system
The MQ is a compact, “plug and pump” or all-in-one
solution; there is no need for a separate pressure tank,
pressure switch, electrical connections, fittings, or any
other separate items. No maintenance of the pump is
required. Two versions are available to choose from.
Installation
Installation of the MQ is simple and can be done in a
matter of minutes, which means greatly reduced
installation costs.
Outlet connnection can be angled up to 5° to fit
existing pipework.
Simple operation
The MQ features a user-friendly control panel with
ON/OFF button and indicator lights for indication of the
operational state of the pump.
Compact design
Compact, horizontal design fits even where space is
limited (outdoor applications require the use of the
Protection Cover, sold separately); no space around
the pump is required.
Self-priming
As it is self-priming, the MQ is able to pump water from
a level below the pump. Provided it is filled with water,
the pump is able to lift water from a depth of 26 ft (8 m)
in less than 5 minutes. This facilitates installation and
start-up of the pump and provides more reliable water
supply in installations where there is a risk of dry
running and leakages in suction hose or pipes.
Built-in protective functions
Built-in protective functions; if exposed to dry
running, excessive temperature, or any overload
condition the pump will stop automatically, thus
preventing a motor burnout.
Automatic reset
In case of dry running or a similar alarm, the pump will
stop. Restarting will be attempted every 30 minutes for
a period of 24 hours. The reset function can be
deactivated.
Low noise level
Superior hydraulics and internal cooling combined
result in very quiet operation, which makes it suitable
for many applications.
Pressure tank
The built-in pressure tank reduces the number of starts
and stops in case of leakages in the pipe system,
causing less wear on the pump.
How the MQ functions
The MQ pump has a small built-in pressure tank,
sufficient to ensure that water is readily available from
the tap. When water is required, the pump
automatically starts. A non-return valve prevents
backflow.
The controller ensures that the pump starts
automatically when water is consumed and stops
automatically when the consumption ceases. In
addition, the controller protects the pump in case of
faults.

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