Energy storage solenoid valve normally open and normally closed

What is a normally closed solenoid valve?

A normally closed (NC) solenoid valve is a type of electrically-operated valve that remains closed when de-energized. In its default position, the flow of media through the valve is blocked, and it requires an electrical current to actuate or open.

What happens when the solenoid in a direct acting valve is energized?

When the solenoid is energized in a direct acting valve, the core directly opens the orifice of a Normally Closed valve or closes the orifice of a Normally Open valve. The core, guided by a winding, moves the valve member to open or close the orifice.

When should the normally open solenoid valve be selected?

When the high temperature solenoid valve needs to be opened for a long time, and the duration of excess time to close, the normally open type should be selected. When the opening time is short or the opening and closing time is not long, the normally closed type is selected.

What happens when the solenoid is energized?

When the solenoid is energized, the core opens the pilot orifice, relieving pressure from the top of the piston or diaphragm via the outlet side of the valve. The line pressure then opens the valve by lifting the diaphragm or piston off the main orifice.

Do solenoid valves require energy consumption?

No energy consumption is required for startup, and the solenoid will be absorbed and the valve will be closed only after the power supply is disconnected. Normally open solenoid valves do not require special attention to the direction during installation, and are easy to install.

How to choose the solenoid valve?

It is usually selected according to the length of continuous working time: normally closed, normally open, or continuously energized; when the solenoid valve needs to be opened for a long time, and the continuous time is excessive, the normally open type should be selected.