Valve controller
A controller for controlling a valve is disclosed including a manifold assembly, a valve position indicator and a trigger assembly. An operating media distribution system is disposed in the manifold assembly and an electronic control unit is disposed in the controller. The electronic control unit operates at least one electromagnetic valve to control operating media flow via the operating media distribution system to activate an actuator which opens or closes the valve. The trigger assembly includes a cylinder adapted to receive an actuator shaft and provide a self setting mechanism corresponding to the stroke length of the actuator shaft.
1. A beacon assembly indicating the position of a valve associated with a valve actuator, said beacon assembly attached to a valve controller, said beacon assembly comprising: a vane indicator having a substantially conical shape and a central aperture, a portion of said vane rotatably positioned on a housing of said controller; a deflector having a substantially conical shape and a central aperture, said deflector positioned on top of and at least partially covering said vane; such that rotation of said vane reveals an indicator portion of said vane; a dome having a substantially conical shape and positioned on top of and covering said vane and said deflector; a cam housing attached to said vane around said central aperture; and a cam assembly including a cam portion having a substantially cylindrical shape and a curved channel, said cam assembly adapted to engage a first end of a cylinder and at least a portion of which is disposed within said cam housing wherein said cam assembly forces said vane indicator to rotate in response to an upward or downward vertical force applied to said cam assembly by said cylinder.
2. The beacon assembly of claim 1 wherein said vane indicator comprises a plurality of shields extending from said central aperture, each of said shields having a color easily noticeable by a human eye.
3. The beacon assembly of claim 1 wherein said deflector comprises a plurality of shields extending from said central aperture.
4. The beacon assembly of claim 1 wherein said cam assembly further comprising:
a drum having a first end, a second end, an outer wall, an inner cavity and at least one pin extending from said outer wall into said inner cavity; and
a guide fixedly disposed within said drum and having a first end communicating with said first end of said drum such that displacement of said cam in an upward or downward direction causes said pin to traverse said curved channel and turns said drum which rotates said guide.