Brass ball valves with a spring-close lever are specialised valves designed for quick and automatic shutoff of fluid flow. They feature a lever handle that, when released, springs back to its closed position, blocking the flow of liquids or gases instantly. These valves are commonly used in emergency shutdown systems or applications where rapid flow control is crucial for safety or process control. The spring-close lever ensures that the valve closes automatically when released, reducing the risk of human error and providing an efficient means of shutting off the flow in critical situations. This design is especially valuable in industries where immediate response to emergencies or system failures is essential.