ITT Goulds Pumps ICB, Инструкция по установке, эксплуатации и обслуживанию

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NOTICE:
Cavitation can cause damage to the internal surfaces of the pump. Ensure net positive suction
head available (NPSH
A
) always exceeds NPSH required (NPSH
3
) as shown on the published
performance curve of the pump.
Operation under freezing conditions
NOTICE:
Do not expose an idle pump to freezing conditions. Drain all liquid that will freeze that is inside
the pump and any auxiliary equipment. Failure to do so can cause liquid to freeze and damage
the pump. Note that different liquids freeze at different temperatures. Some pump designs do
not drain completely and may require flushing with a liquid that doesn't freeze.
6.1.8 Abrasive Media
On pumping liquids with abrasive components an increased wear at hydraulic and shaft sealing must
be expected. The intervals of inspection should be reduced compared to the usual times.
6.1.9 Lubrication
The pump has no bearings and, therefore there´s no need for lubrication.
For possibly required lubrication of the motor bearings refer to the Operation and Maintenance Instruc-
tions of the motor supplier.
6.1.10 Shut down
1. Close the valve in discharge pipe right before (max. 10 seconds) switching off the motor. This is not
necessary if there is a spring-loaded check valve.
2. Switch off motor (make sure it runs down quietly).
3. Close the valve on suction side.
4. Close auxiliary circuit.
5. On danger of freezing empty pump and pipes completely.
6. If pump remains under pressure and temperature when stationary: leave existing sealing and flush-
ing systems switched on.
7. The shaft sealing must remain sealed if there is a risk of air being sucked in (in the event of supply
from vacuum systems or parallel operation with shared suction pipe).
6.1 Commissioning, Startup, Operation, and Shutdown
ICB Installation, Operation and Maintenance Instruction 31