The manual oxygen shut-off valve is a core flow control device specifically designed for oxygen delivery systems. Focusing on "oxygen safety compliance + precise manual control," it addresses the safety concerns of oxygen's flammability, high pressure, and leak-prone nature through deoxidized materials, a grease-free structure, and a reliable sealing design. It is widely used in industrial oxygen production, medical oxygen supply, metallurgy, and other fields requiring the highest levels of oxygen delivery safety. Its manual operation mode eliminates the need for external power, allowing for quick response in emergency situations, making it a critical component of the oxygen system's "safety defense line."