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Section 4: Set-up/Start-up Procedure
February 2021
Figure 22
4.9
Other Options
Other options such as Partial Stroke Test may have been supplied with this order.
Refer to supplemental start-up procedures supplied with these options for start-up and test.
The functional test of the Electro-Hydraulic Actuator is now complete.
The Bettis EHO Actuator is now operational and ready for service.
34
4.8.2.5 Upon completion of the charging of the accumulator, the pressure switch
set point will be reached and it will stop the electric motor.
4.8.2.6 Energize the desired solenoid valve (J) to open the actuator or (K) to close
the actuator.
4.8.2.7 Upon completion of the open or close stroke, the Limit Switch(s) can be
configured to de-energized the solenoid that is energized. Some field
installations can use the customer's control room logic to de-energize the
solenoids after the actuator stroke open or close is reached.
2-Way Remote Electric With an ESD Solenoid Function Schematic
N
H
CLOSE
L
M
M
Installation, Operation and Maintenance Manual
J
K
Y
(L)
Handpump Selector
(L)
Hand Pump Selector
(M) Handpump Selection Valves
(M)
Hand Pump Selection Valves
(H) Accumulator Isolation Valve (Optional)
(H)
Accumulator Isolation Valve(Optional)
(N) Accumulator Isolation Valve (Optional)
(N)
Accumulator Isolation Valve(Optional)
(J)
Opening Solenoid
(J)
Opening Solenoid
(K)
Closing Solenoid
(K)
Closing Solenoid
(O) Handpump Isolation Valve
(O)
Hand Pump Isolation Valve
(P)
ESD Solenoid Valve (Optional)
(P)
ESD Solenoid Valve(Optional)
VCIOM-13254-EN Rev. 3
O
P
Set-up/Start-up Procedure
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