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English (GB)

9

The SQE-NE pumps are designed for pumping thin, 
clean, non-explosive liquids, not containing solid 
particles or fibres. 

These pumps are suitable for pumping contaminated 
or hydrogen-carbonate containing groundwater, e.g. 
from 

dumps

chemical depots

industrial areas

oil and petrol filling stations

environmental applications.

The SQE-NE pumps can also be used for sampling 
and monitoring and to some extent for incorporation 
in water treatment systems.

Information applying to all pump types

The maximum sand content of the water must not 
exceed 50 g/m

3

. A larger sand content will reduce 

the life of the pump and increase the risk of blocking. 

pH values

SQ and SQE:

5 to 9.

SQE-NE:

Please contact Grundfos.

Liquid temperature

The temperature of the pumped liquid must not 
exceed 35 °C.

3. Technical data

Supply voltage

1 x 200-240 V - 10 %/+ 6 %, 50/60 Hz, PE.
Operation via generator: As a minimum, the 
generator output must be equal to the motor P

1

 [kW] 

+ 10 %.

Starting current

The motor starting current is equal to the highest 
value stated on the motor nameplate.

Power factor

PF = 1.

Motor liquid

Type SML 2.

Motor cable

1.5 m, 3 x 1.5 mm

2

, PE.

Liquid temperature

Maximum 35 °C.

Pump outlet size

SQ 1, SQ 2, SQ 3:

Rp 1 1/4.

SQ 5, SQ 7:

Rp 1 1/2.

Pump diameter

74 mm.

Borehole diameter

Minimum 76 mm.

Installation depth

Maximum 150 m below static water level.
See also section 6.8.2 Installation depths.

Net weight

Maximum 6.5 kg.

3.1 Storage

Storage temperature: -20 °C to +60 °C. 

3.1.1 Frost protection

If the pump has to be stored after use, it must be 
stored on a frost-free location or it must be ensured 
that the motor liquid is frost-proof.

The motor must not be stored without being filled 
with motor liquid. 

3.2 Sound pressure level

The sound pressure level of the pump is lower than 
the limiting values stated in the EC Council Directive 
2006/42/EC relating to machinery.

Note

If liquids with a viscosity higher than 
that of water are to be pumped, please 
contact Grundfos. 

Содержание SQE-NE Series

Страница 1: ...on 12 6 1 General 12 6 2 Assembly of pump part and motor 12 6 3 Removal of non return valve 12 6 4 Fitting the cable plug to the motor 13 6 5 Fitting the cable guard 13 6 6 Cable sizing 14 6 7 Fitting...

Страница 2: ...ator As a minimum the generator output must be equal to the motor P1 kW 10 Starting current The motor starting current is equal to the highest value stated on the motor nameplate Power factor PF 1 Mot...

Страница 3: ...ng a screwdriver or a similar tool 4 Inject motor liquid into the motor with a filling syringe or the like 5 To allow possible air to escape move the motor from side to side 6 Refit the filling plug a...

Страница 4: ...arked with the following symbol Supply voltage 1 x 200 240 V 10 6 50 60 Hz PE The current consumption can only be measured by means of a true RMS instrument If other instruments are used the value mea...

Страница 5: ...be used on the clamping faces of the pump part See fig 6 Fig 6 When pump part and motor have been assembled correctly there must not be a clearance between pump part and motor 6 3 Removal of non retur...

Страница 6: ...earance between the motor and the cable plug 6 5 Fitting the cable guard To fit the cable guard proceed as follows 1 Make sure that the submersible drop cable lies flat in the cable guard 2 Place the...

Страница 7: ...Fitting the submersible drop cable It is recommended to join the submersible drop cable and the motor cable by means of a Grundfos cable termination kit type KM For larger cross sections please contac...

Страница 8: ...lation depths Maximum installation depth below the static water level 150 metres See fig 11 Minimum installation depths below the dynamic water level Vertical installation During start up and operatio...

Страница 9: ...switch and diaphragm tank during starting will be lower than the pump cut in pressure set on the pressure switch pcut in This lower pressure is called minimum pressure pmin pmin is equal to the desir...

Страница 10: ...ce tools are available from Grundfos The Grundfos Service Manual is available on request The pumps can be serviced at a Grundfos service centre 9 1 Contaminated pumps If Grundfos is requested to servi...

Страница 11: ...n the electric installation are blown Replace the blown fuses If the new ones blow too the electric installation and the submersible drop cable should be checked b The ELCB or the voltage operated ELC...

Страница 12: ...e is defective Replace the riser pipe i Undervoltage has occurred Check the power supply 4 Frequent starts and stops a The differential of the pressure switch between the start and stop pressures is t...

Страница 13: ...d neutral Connect the voltmeter to the terminals at the connection The voltage should when the motor is loaded be within the range specified in section 5 Electrical connection Large variations in supp...

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