These actuators are used for electric two-position control of globe valves and dampers which require a return to the normal position upon power interruption.
Features
Two-position actuators controlled by an SPST controller
Spring return.
Available 24, 120, and 240 Vac models.
An actuator with the part number suffix "-500" has a built-in, adjustable, SPDT auxiliary switch
Available damper models with linkage or base models that require separate damper or valve linkage.
Die cast lower housing with 1/2 in. conduit opening and painted steel upper housing.
Hydraulic actuator with oil-immersed motor and pump
Most of these valves can not be opened manually, so we would not be able to provide this information.
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- mstrmech
pull the power. it should default to open
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- henry
take the actuator off the valve
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