COMMISSIONING, START-UP AND SHUTDOWN
DESMI Pumping Technology A/S
Tagholm 1
9400 Nørresundby
– Denmark
Tlf. nr.: +45 96 32 81 11
Fax +45 98 17 54 99
55
E-mail: [email protected] www.desmi.com
CAUTION
RISK OF PROPERTY DAMAGE!
Start-up against open discharge line could lead to motor overload, which could damage
the motor.
Make sure that the motor has sufficient power reserves.
Use a soft starter.
Use speed control.
1. Fully open the shut-off element in the suction head / suction lift line.
2. Close or slightly open the shut-off element in the discharge line.
3. Start up the motor.
4. Immediately after the pump reaches the full rotational speed, slowly open the shut-off element
in the discharge line and adjust it to comply with the duty point.
6.4. Checking the shaft seal
The mechanical seal only leaks slightly or invisibly (as vapor) during operation. Mechanical seals
are maintenance-free.
6.5. Shut down
CAUTION
RISK OF DAMAGING THE SHAFT SEAL!
Heat build-up inside the pump could damage the shaft seal.
Stop the heat source, and always allow the fluid handled to completely cool down after
the pump set stops.
The shut-off element in the suction line is and remains open.
1. Close the shut-off element in the discharge line.
2. Switch off the motor and make sure the pump set runs down smoothly to a standstill.
NOTE: If the discharge line is equipped with a check valve, the shut-off element in the
discharge line may remain
open, provided the site’s requirements and regulations are taken
into account and observed.
Содержание NSL 100-215
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