6 Commissioning/Start-up/Shutdown
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Etaline
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/Start-up
6.1.1 Prerequisites for commissioning/start-up
Before commissioning/starting up the pump set, make sure that the following
conditions are met:
▪ The pump set has been properly connected to the power supply and is equipped
with all protection devices. (ðSection5.5,Page26)
▪ The pump has been primed with the fluid to be handled. The pump has been
vented. (ðSection6.1.4,Page29)
▪ The direction of rotation has been checked. (ðSection5.6,Page27)
▪ All auxiliary connections required are connected and operational.
▪ The lubricants have been checked. (ðSection6.1.2,Page29)
▪ After prolonged shutdown of the pump (set), the activities required for returning
the equipment to service have been carried out. (ðSection6.4,Page34)
▪ The lock washers, if any, have been removed from the shaft groove.
6.1.2 Filling in lubricants
Grease-lubricated bearings have been packed with grease at the factory.
6.1.3 Checking the shaft seal
Mechanical seal The mechanical seal only leaks slightly or invisibly (as vapour) during operation.
Mechanical seals are maintenance-free.
6.1.4 Priming and venting the pump
DANGER
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
▷ The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems must be filled with the fluid to be handled at all
times.
▷ Provide sufficient inlet pressure.
▷ Provide an appropriate monitoring system.
DANGER
Risk of potentially explosive atmosphere by mixing of incompatible fluids in the
auxiliary piping
Risk of burns!
Explosion hazard!
▷ Make sure that the barrier fluid or quench liquid are compatible with the fluid
handled.
DANGER
Shaft seal failure caused by insufficient lubrication
Hot or toxic fluid could escape!
Damage to the pump!
▷ Before starting up the pump set, vent the pump and suction line and prime
both with the fluid to be handled.