6.1.4 Priming and venting the pump
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 and quench liquid are compatible with the
fluid pumped.
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
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.
1. Vent the pump and suction line and prime both with the fluid to be handled.
2. Fully open the shut-off element in the suction line.
3. Fully open all auxiliary connections (barrier fluid, flushing liquid, etc).
6.1.5 Final check
1. Remove the coupling guard and its footboard, if any.
2. Check the coupling alignment; re-align the coupling, if required. (⇨ Section 5.6
Page 27)
3. Check proper functioning of coupling/shaft.
Check that coupling/shaft can be easily rotated by hand.
4. Fit the coupling guard and its footboard, if any.
5. Check the distance between coupling and coupling guard.
The coupling guard must not touch the coupling.
6.1.6 Water cooling
CAUTION
Deposit-forming, aggressive cooling water
Damage to the pump!
▷ Observe the cooling water quality.
Observe the following quality data of the cooling water:
▪ Not deposit-forming
▪ Not aggressive
▪ Free from suspended solids
▪ Hardness on average 5 °dH (~1 mmol/l)
▪ pH > 8
6 Commissioning/Start-up/Shutdown
MegaCPK
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