Filling and venting of hydraulic indicating system, Performance test, Maintenance – Flowserve HV 205 User Manual
Page 28
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Filling and venting of hydraulic indicating system
Open both bottom valves before filling the hydraulic indicating system.
Drawing see page 4
1.
Use the operating device
to open the bottom valves
.
2.
Loosen the venting plug
of the actuating cylinder
of the liquid phase in the
operating device
by half a turn.
3.
To fill the hydraulic indicating system connect an external oil hand pump with a
pressure gauge (measuring range: 0 -20 bar) to the filling connection
of the bottom
valve
for the liquid phase. Operate the pump until the oil leaves the venting plug
of the indicating cylinder
without any bubbles.
4.
Then fasten the venting plug
tightly.
5.
Continue to operate the external oil hand pump until the indicating piston
is
completely moved out and a pressure of approx. 10 to 20bar is indicated by the
pressure gauge.
6.
Finally remove the external oil hand pump from the filling connection
of the bottom
valve
and open the hydraulic system by loosening the tension rope
. The bottom
valve
closes automatically.
Follow the same steps when filling the bottom valve for the gas phase.
Performance test
Use both operating devices
for the performance test.
1.
To close the hydraulic system pull the tension rope
that closes the ball valve
of
the control unit
.
2.
Use the pump lever
of the hydraulic hand pump
in the operating device
and
perform approx. six strokes until you detect a slight resistance. The indicating
pistons
of both bottom valves
must now be in the open position and they must
be extended by approx. 46mm.
3.
During the hold time of approx. 2 hours the pressure must not decrease.
4.
Check all connections and screwed unions for oil leaks. If necessary re-tighten the
connections.
5.
Then re-open the hydraulic system by loosening the tension rope
.
6.
Both bottom valves
must close automatically and the indicating pistons
in the
operating devices
must be at the lower position.
B
A
Q
K
B
W
A
Q
K
Q
O
W
A
F
A
B
F
35
C
J
T
B
O
A
F
A
O
B