Delivery And Storage; Delivery; Unpacking; Storage And Handling - Grundfos MS Serie Instrucciones De Instalación Y Funcionamiento

2. Delivery and storage

2.1 Delivery

Grundfos submersible motors are supplied from
factory in proper packing in which they should
remain until they are to be installed.

2.2 Unpacking

Be careful not to damage the motor
cable with sharp tools when unpacking

Caution

the motor.
The separate nameplate supplied with
Note
the motor must be fixed close to the
installation site.
Do not expose the motor to unnecessary impact and
shocks.

2.3 Storage and handling

Storage temperature
-20 - +70 °C.
If MMS motors are stored, the shaft
must be turned by hand at least once a
month. If a motor has been stored for
Caution
more than one year before installation,
the rotating parts of the motor must be
dismantled and checked before use.
Do not expose the motor to direct sunlight.
Storage
Warning
Do not stack boxes of different lengths.
Fig. 1 Guideline for stacking of boxes
2.3.1 Frost protection
If the motor is to be stored after use, it must be
stored in a frost-free location, or the motor liquid
must be frost-proof.
The motors are factory-filled with
demineralised water and must therefore
Caution
be stored in a frost-free location or
emptied before storage.
6

3. General description

3.1 Applications

Grundfos MS and MMS submersible motors are
designed according to market standards.
All Grundfos 4", 6" and 8" MS and MMS motors are
designed to fit pump ends manufactured according
to NEMA standards. The motors are ideally suited as
water supply pumps for irrigation, groundwater
regulation, pressure boosting, industrial water
transfer and similar applications.

3.2 Pumped liquids

Clean, thin, non-flammable, non-combustible or non-
explosive liquids not containing solid particles or
fibres.
The maximum sand content of the pumped liquid
3
must not exceed 50 g/m
The N, R and RE motor versions are designed for
liquids with higher aggressiveness than drinking
water.
Materials in contact with the liquid:
• MMS: cast iron DIN W.-Nr. 0.6025 and NBR
rubber.
• MMS -N: stainless steel DIN W.-Nr. 1.4401 and
NBR rubber.
• MS/MMS -R: stainless steel DIN W.-Nr. 1.4539
and NBR rubber.
• MS -RE: stainless steel DIN W.-Nr. 1.4539/
1.4517 and FKM rubber.
The maximum liquid temperature appears from
section 4.3 Liquid temperatures/cooling.

3.3 Sound pressure level

The sound pressure level has been measured in
accordance with the rules laid down in the EC
Machinery Directive 98/37/EC.
The sound pressure level of Grundfos MS and MMS
motors is lower than 70 dB(A).
.