The valve body is the part of the valve which is connected to the pipe from which fluid is flowing. It is the primary pressure boundary. It contains the whole solenoid assembly inside it.
The inlet port of the valve is the entry point of the fluid to the valve.
The outlet port is the exit point for the fluid which is allowed by the automatic valve to flow. It exits from the valve through the outlet port and goes to the further process plant via piping.
The Coil winding is the long thin wire which is wounded around the magnetic core.
The plunger is the part that stops or starts the flow of fluid. When the solenoid is energized the plunger will move up or down based on design and let the fluid flow. It is made up of ferromagnetic material. Usually, it is cylindrical.
The solenoid coil is the part of the valve which energizes and lifts the plunger. It is a hollow cylinder of thin wire.
The spring keeps the plunger in position when the current is not flowing in the solenoid. When the current is flowing in the wire the plunger will act against the spring action and opens the valve. So, after that when we want to close the valve we need to put the plunger back to its correct position at that time spring will do it for us.
The orifice is the hole through which fluid will flow from the inlet port to the outlet port. At the close condition, the plunger will stop the flow by blocking the orifice.
Parts of the solenoid valve - Zorgon (Zhejiang) Automation Technology Co.,Ltd. (cnzorgon.com)
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