![]() The circuit function can be expressed in a symbol. More ports or combinations of valves in a single construction are possible. 3/2 way valves can have different functions such as normally closed, normally open, diverting or universal. A 2/2 way valve can be ‘normally closed’ (closed in de-energized state) or ‘normally open’ (open in de-energized state).Ī 3/2 way valve has three ports and two positions and can therefore switch between two circuits. The specific purpose of a solenoid valve is expressed by its circuit function.Ī 2/2 way valve has two ports (inlet and outlet) and two positions (open or closed). ![]() ![]() Solenoid valves are used to close, dose, distribute or mix the flow of gas or liquid in a pipe. “A solenoid valve is an electromechanical actuated valve to control the flow of liquids and gases.” Circuit Functions of Solenoid Valves ![]()
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