A solenoid valve is an electromechanically controlled valve used to regulate the flow of liquids or gases in a system. Plastic solenoid valves, as the name suggests, use plastic materials like PVC, PP, and PVDF for their body construction. These valves are particularly well-suited for industries that handle aggressive fluids or require a lightweight, durable, and corrosion-resistant valve. The plastic construction makes them ideal for applications involving chemicals, water, and food-grade liquids, which need high resistance to corrosion but at a lower weight and cost than traditional metal valves.