Flowserve HV 205 - Manual (Page 31)

31
Operation
– continued –
Emergency Operation
During emergency unloading the following actions will take place:
Opening of bottom valve
Closing of bottom valve
If both bottom valves are to be opened, open first the bottom valve for the gas phase
and then the one for the liquid phase.
Drawing see page 4
1. Unscrew the sealing plug of the bottom valve located in the bottom of the
actuating cylinder . A small amount of oil might escape.
Put the sealing plug in the operating device .
2. Unscrew one or two of the required screws for sealing off the opening for emergency
unloading
from one of the operating devices and apply a smear of commercially
available lubricant to them.
They are screwed one below the other to the back of the operating device
.
4. Screw the sealing-off screw into the thread at the bottom of the actuating
cylinder in order to open the bottom valve .
5. Open the lateral shut-off valves to start the loading/unloading process.
A
V A
D
V B
Y B
B
Y
D A
E
Warning
Use the emergency operation of the bottom valves only if both hydraulic
hand pumps have failed or, for any other reason, there is not enough
pressure for opening one or both bottom valves.
In case of emergency operation the rapid-action closing of the bottom
valve is not possible.