Stiefel (Guangdong) Energy Environmental Protection Engineering Co., Ltd. offers normally open solenoid valves that are designed to allow fluid flow by default until an electrical signal triggers closure, making them ideal for applications requiring fail-safe open functionality. These valves feature a robust construction with high-quality materials, ensuring resistance to corrosion, wear, and high temperatures for long-term reliability. The normally open design ensures continuous flow when the solenoid is de-energized, the solenoid coil, when activated, generates a magnetic force to close the valve quickly and precisely. Engineered for easy installation and maintenance, these valves provide consistent performance in systems such as fuel lines, water treatment, and industrial processes, where a default open state enhances operational safety and efficiency.