Solenoid valve normally open and close normally
to sum up, normally open solenoid valve is open under static, normally closed solenoid valve is closed under static conditions, in the case of power supply, it can change its working state.
normally closed solenoid valve refers to the valve body in the role of the spring is closed, under the influence of electricity or external force to open the valve body solenoid valve;
Normally open solenoid valve refers to the valve body in the role of the spring is open, and under the influence of electricity or external force to make the valve closed electromagnetic valve;