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 the footboard for the coupling guard, if any.
2.
Check the coupling alignment; re-align the coupling if required.
3.
Check that the coupling and shaft can easily be rotated by hand.
4. Re-install the coupling guard and the footboard for the coupling guard, if any.
5. Check the distance between the coupling and coupling guard.
The coupling and coupling guard must not come into contact.
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
▪ Conditioned and neutral with regard to mechanical corrosion
▪ Inlet temperature t
E
=10 to 30 °C
Outlet temperature t
A
= 45 °C max.
6.1.7 Cooling of the pump
The casing cover, the bearing bracket and the casing support on the baseplate can be
cooled.
Observe the following quality data of the cooling water:
▪ Maximum permissible cooling liquid pressure: 10 bar
6 Commissioning/Start-up/Shutdown
32 of 76
RPH
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