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Section 6: Operation
September 2020
NOTE:
Item numbers correspond to attached schematic drawing 11794-S.
(W)
(Z)
(Y)
(I)
(K)
(J)
(V)
(AA) Suction Strainer
(T)
(U)
(Q)
(R)
(L)
(M)
(X)
(S)
42
Bettis G-series Double-Acting Actuator
Electric Motor
Hydraulic Pump
Fluid Reservoir
3-Way Normally Closed Solenoid Valve for closing the actuator
3-Way Normally Closed Solenoid Valve for opening the actuator
Adjustable Flow Controls. There are two flow controls located upstream of the open
and close solenoid valve items (J) & (K).
Check Valve
Relief Valve: A pressure relief valve is provided to protect the actuator and control
system from over-pressurization caused by the pump or thermal expansion of the
hydraulic fluid.
Hydraulic Pressure Gauge
Pressure Switch
Hand Pump: Used to manually stroke the actuator open or closed.
Hand Pump Selection Valves: These two valves are engaged to isolate the control
system before using the hand pump. Note: Both selection valves are engaged at the
same time when the hand pump is used to open or close the actuator.
Shuttle Valve; (Optional) Used with an optional pressure transmitter.
Pressure Transmitter(Optional)
Service Instructions
MAN-02-08-77-0714-EN Rev. 2
Operation
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