Overpressure set value
Underpressure set value
Downstream pipeline pressure
∆
P
WU
∆
P
WO
Type BM9
10
CLOSED POSITION
RESET STAGE
RED MARK
RESET COMPLETED
RED MARK IS JUST AT “ON”
RED MARK
Figure 11.
OS9/80X-R Series Slam-Shut Controller Resetting Position
OVERPRESSURE SET VALUE
DOWNSTREAM PIPELINE PRESSURE
UNDERPRESSURE SET VALUE
Figure 12.
OS9/80X-R Series Slam-Shut Controller Range Setting