Stiefel, a trusted supplier of combustion equipment since 2013 with headquarters in Guangzhou, China, offers high-quality normally open solenoid valves, specialized flow control components that remain open to allow media flow when de-energized and close when energized, providing a fail-safe mechanism for applications where uninterrupted flow is critical unless a shutdown is required. A normally open solenoid valve is designed with a spring-loaded mechanism that keeps the valve open without power, ensuring media (such as air, water, or gas) flows freely under normal conditions, and only closes when an electrical signal activates the solenoid coil, making it ideal for safety systems, ventilation, and backup fluid supply lines. Stiefel's normally open solenoid valve is engineered with durable materials, including brass or stainless steel bodies, high-temperature seals, and robust solenoid coils, ensuring resistance to corrosion, pressure (up to 300 psi), and temperatures (up to 180°C), which is vital for reliable operation in industrial, commercial, and residential settings. The normally open solenoid valve features fast response times (typically 30-100 milliseconds) to energization, ensuring quick closure when needed, while its spring design guarantees consistent opening force when de-energized, maintaining stable flow rates and preventing pressure drops in critical systems. What sets this normally open solenoid valve apart is its versatility, compatible with various media types, including clean fluids, gases, and light oils, making it suitable for applications such as burner air supply control, irrigation systems, and industrial process lines where fail-open functionality is required. Normally open solenoid valves from Stiefel are available in multiple sizes (from 1/4 inch to 2 inches) and connection types (NPT, BSP), offering flexibility for integration into new or existing systems, with options for manual override to ensure operability during power outages or maintenance. Rigorously tested for leak tightness in both open and closed positions, durability, and coil performance, these normally open solenoid valves meet international standards such as ISO and CE, ensuring compliance with safety regulations and reliable operation. Backed by Stiefel's research and development expertise, the normally open solenoid valve incorporates innovations such as low-power coils and enhanced spring designs, improving energy efficiency and extending service life, which aligns with the company's commitment to energy-saving solutions. With Stiefel's comprehensive service network, customers receive expert support for selecting, installing, and maintaining normally open solenoid valves, including guidance on voltage requirements and media compatibility to ensure optimal performance. For systems requiring fail-safe flow control with reliable operation, Stiefel's normally open solenoid valve is an essential component that delivers safety, flexibility, and durability.