The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve’s status. It is open when the ball’s hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. Ball Valves A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to control flow through it.When the control signal is received, the actuator responds by converting the energy into mechanical motion. The supplied main energy source may be electric current, hydraulic fluid pressure, or pneumatic pressure. The control signal is relatively low energy and may be electric voltage or current, pneumatic or hydraulic pressure.
It requires a control signal and a source of energy. Actuators & Accessories An actuator is a component of a machine that is responsible for moving or controlling a mechanism or system.
