2.4 Flushing and salinity
When the booster system is stopped, it is very important to flush the
system according to these guidelines.
Flush the pump to prevent stagnant seawater which can
start corrosion inside the pump. When flushing, BMS 7-42
must operate at minimum speed. For bigger sizes
operating at minimum speed is recommended.
See also periods of inactivity in the section on starting up after
standstill.
Pump type
Fresh water
p
min
[bar]
Max. salinity
[ppm TDS]
1)
Flushing time
[min.]
BMS hs
1 1000
Depends on
pressure, flow,
water quality and
system design and
size.
BMS xl
BMS hp
Pressure
exchanger of
BMSX
1)
TDS: Total dissolved solids
Related information
9. Starting up after standstill
3. Receiving the product
During delivery and storage, never preserve the pumps
with glycerine or similar liquids which are aggressive to
the pump materials.
3.1 Transporting the product
The pumps are supplied from the factory in proper packaging in
which they must remain until installation.
3.2 Inspecting the product
1. Check that the pump has not been damaged during
transportation.
2. Check that the type designation corresponds to the order. See
the pump nameplate.
3. Compare the motor voltage and frequency details on the motor
and frequency converter nameplates with the power supply
available.
4. Installation requirements
4.1 Reading the guide
When installing the products, follow the steps below. Note that the
steps might differ from product to product.
1. Mechanical installation.
2. Electrical connection.
3. Commissioning.
5. Mechanical installation
5.1 Foundation
Construct the foundation to safely support the booster system or
pumps under all conditions. The pump and motor must be installed
on the same level.
The foundation must be strong enough to support the weight of both
units.
5.1.1 Vibration dampening
Use the vibration dampers supplied with the BMS hs pump.
5.2 BMS hs and BMS xl pumps
The pump can be mounted directly on the floor or on a base frame
(accessory).
TM059569
BMS hs pump
5.2.1 Location
To ensure sufficient cooling of the motor, leave a free space of
minimum 100 mm behind the non-drive end of the motor.
5.2.2
Lifting and handling the motor
Use straps when lifting the motor, and lower it down slowly.
WARNING
Falling objects
Death or serious personal injury
‐ Observe local regulations concerning limits for manual
lifting or handling.
‐ Use straps on the motor, and do not lift in the fan
guard.
‐ Make sure that the crane is suitable for the job. Use
certified and approved lifting equipment. See the
nameplate.
TM059235
Example of how to lift the motor
If you do not follow these instructions, there is a risk of
warping or crushing some of the equipment such as the
terminal box, cover or drip cover.
6
English (GB)
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