Brochure
2525
1.3.1. The UP pump
Circulation pumps are used for heating, circulation of cold water, ventila-
tion and aircondition systems in houses, oce buildings, hotels, etc. Some
of the pumps are installed in heating systems at the end user. Others are
sold to OEM customers (Original Equipment Manufacturer) that integrate
the pumps into gas furnace systems. It is an inline pump with a canned ro-
tor which only has static sealings. The pump is designed to minimise pipe-
transferred noise. Grundfos produces UP pumps with and without automat-
ic regulation of the pump. With the automatic regulation of the pump, it is
possible to adjust the pressure and flow to the actual need and thereby save
energy.
1.3.2 The TP pump
The TP pump is used for circulation of hot or cold water mainly in heating,
cooling and airconditioning systems. It is an inline pump and contrary to the
smaller UP pump, the TP pump uses a standard motor and shaft seal.
1.3.3 The NB pump
The NB pump is for transportation of fluid in district heating plants, heat
supply, cooling and air conditioning systems, washdown systems and other
industrial systems. The pump is an endsuction pump, and it is found in many
variants with dierent types of shaft seals, impellers and housings which
can be combined depending on fluid type, temperature and pressure.
1.3.4 The MQ pump
The MQ pump is a complete miniature water supply unit. It is used for
water supply and transportation of fluid in private homes, holiday
houses, agriculture, and gardens. The pump control ensures that it starts
and stops automatically when the tap is opened. The control protects
the pump if errors occur or if it runs dry. The built-in pressure expansion
tank reduces the number of starts if there are leaks in the pipe system.
The MQ pump is self-priming, then it can clear a suction pipe from air
and thereby suck from a level which is lower than the one where
the pump is placed.
Figure 1.23: UP pumps.
Figure 1.24: TP pump.
Figure 1.25: NB pump.
Figure 1.26: MQ pump.
Outlet
Hydraulic
Motor
Inlet
Inlet
Outlet
Inlet
Outlet
Outlet
Inlet