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标题: Understanding the Functionality and Applications of Normally Open Solenoid Valve A Normally Open Solenoid Valve is a fundamental component in fluid control systems, widely used in industrial, commercial, and residential applications. Unlike its counterpart, the normally closed solenoid valve, a normally open valve allows fluid to flow through it when no electrical power is applied. It is only when an electrical current energizes the solenoid coil that the valve closes, effectively stopping the flow of liquid or gas. This characteristic makes it particularly valuable in systems that require fluid to flow by default and only need interruption under specific conditions.