Solenoid Valve, Types of Solenoid Valves, What are Solenoid Valves, Working Principles of Solenoid Valves, Choosing a Solenoid Valve In several domestic, commercial, or industrial settings where gases or liquids have to be distributed or mixed, solenoid valves are used to ensure the accuracy and precision of all the control aspects. To help you understand the types and working principles of solenoid valves, selection criteria, a ...