6 Commissioning/Start-up/Shutdown
58 of 116
CHTRa
NOTE
For design-inherent reasons, the existence of some spaces not filled with liquid
after the pump has been filled prior to commissioning cannot be excluded.
However, once the drive is started up the pumping effect will immediately fill these
spaces with the fluid handled.
6.3 Commissioning/Start-up
6.3.1 Prerequisites for commissioning/start-up
▪
Installation and alignment have been performed in accordance with good
engineering practice, recorded and accepted by the operator.
▪
The rotatability of the pump rotor has been checked.
▪
The drive has been checked in accordance with the manufacturer’s product
literature.
▪
The direction of rotation of the drive has been checked.
▪
All other pump set components have been checked in accordance with the
relevant manufacturer’s product literature.
▪
All contact guards preventing accidental contact have been mounted.
▪
All pipes have been cleaned and connected.
▪
All instruments have been fitted and checked for correct functioning.
▪
The pump, supply lines and circuits have been primed and vented.
▪
Monitor the bearing oil temperature. Make sure that the limits are not
exceeded. (
6.3.2 Checks prior to commissioning/start-up
WARNING
Leakage caused by improper fitting of pipes and/or flanges
Risk of injury resulting from leakage of hot or pressurised fluid or vapour!
▷
Check all screws/bolts, screw/bolt and pipe connections as well as pipes and
flanges for leakage or damage prior to and during commissioning/start-up.
▷
Close all unused connections.
▪
Prior to and during starting of the pump check all connections, pipes, flanges,
screw/bolt connections and pipe unions for leakage and damage.
▪
All unused connections must be closed.
▪
The inlet vessel is in operational condition.
▪
The inlet line, pump and discharge line have been primed and vented.
▪
The shut-off element in the inlet line is fully open.
▪
The shut-off element in the discharge line is closed. If the discharge line is
equipped with a check valve, the shut-off element in the discharge line may
remain open as long as there is some back pressure.
▪
The connection for tapping, if applicable, is closed.
▪
The shut-off elements in the bypass line are open.
▪
The cooling water system is ON.
▪
The cooling liquid pressure at the inlet must not exceed 6 bar.
