1/2'' 24V DC Normally Open Electric Solenoid Valve 24-Volts
Series SVP | Proportioning Solenoid Valve is low cost and uniquely designed. Controls or regulates flow in proportion to a variable voltage input. Compatible with a wide range of gases and liquids.
Solenoid Valve Working and Types - Chemical Engineering World
How Solenoid Valves Work - Basics actuator control valve working principle - YouTube