5 Installation at Site
23 of 52
Etaline-R
The following rules apply to vacuum balance lines:
▪
Minimum nominal line diameter 25 mm.
▪
The line extends above the highest permissible fluid level in the vessel.
1
2
5
4
3
6
Fig. 9:
Vacuum balance system
1
Vessel under vacuum
2
Vacuum balance line
3
Shut-off element
4
Swing check valve
5
Main shut-off element
6
Vacuum-tight shut-off element
NOTE
An additional line (from the pump discharge nozzle to the balance line) fitted with
a shut-off element facilitates venting of the pump before start-up.
5.4.4 Auxiliary connections
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.
WARNING
Failure to use or incorrect use of auxiliary connections (e.g. barrier fluid, flushing
liquid, etc.)
Risk of injury from escaping fluid!
Risk of burns!
Malfunction of the pump!
▷
Refer to the general arrangement drawing, the piping layout and pump
markings (if any) for the quantity, dimensions and locations of auxiliary
connections.
▷
Use the auxiliary connections provided.
