GOOA Main Components
4. Hydraulic cylinder (Double acting
cylinder, Fail in Last position)
1. Basic actuator
5. Gas-over-oil reservoir (8)
2. Electronic control unit
6. High-pressure accumulator/
3. Hydraulic cylinder control line
reservoir
GOOA Main Components
1. Control cabinet
2. Operating time adjustment (flow control device)
OPEN action
3. Manual operation for emergencies selector valve
CLOSED action
4. Pressure Regulator
5. Solenoid valve CLOSED action
6. Filter unit
7. Solenoid valve OPEN action
8. Pressure gauge for input pressure gas
9. Manual operation for emergencies selector valve
12
13
OPEN action
10.Operating time adjustment (flow control device)
CLOSED action
GOOA Working Principle
Scotch Yoke, Quarter Turn
•
The Scotch Yoke (also known as slotted link
mechanism) is a reciprocating motion
mechanism, converting the linear motion of a
slider into rotational motion, or vice versa.
The piston or other reciprocating part is
directly coupled to a sliding yoke with a slot
that engages a pin on the rotating part.
•
The advantage of the Scotch Yoke
principle is that the output torque is
adjusted to the torque of the valve at a
constant input torque (manual/electric
actuators) or input pressure
(hydraulic/pneumatic control) and the
resulting compact design.
GOOA Valve schematic
Vent
PSV with
silencer
NO
Buffer tank @
line pressure
GOV Panel
M/L
pressure
Upon command, Gas will flow
from all 3 points-Upstream,
downstream and from Buffer
tank-least resistance path
Actuator
vendor
NO
NO
NO
NO
IOCL
NO
NO-Normally open
Upstream
Mainline
Auxiliary
connectio
n
NO
Downstrea
m
Ball
valve
with GOV
In case of
auxiliary
connection
(External
source)
Mainline