A hose burst valve is a safety device in hydraulic systems. When a hose ruptures, it automatically cuts off the flow of hydraulic fluid, preventing an uncontrolled drop in load. Under normal operation, it allows bidirectional flow of hydraulic fluid; however, if it detects a sudden increase in flow exceeding a preset value, it immediately closes and locks the system. These valves are crucial for safety, especially in applications such as construction or agriculture, and are typically mounted directly on hydraulic cylinders used to suspend loads.
When the valve remains open, it allows free bidirectional flow of hydraulic fluid.
A hose burst valve a sudden surge of hydraulic fluid. This excessive flow generates a force that pushes the valve disc inside the system to close. Once the disc closes, the pressure within the line holds it closed, preventing fluid flow and thus preventing a drop in load. Some models are available with a calibration port, allowing for a slow, controlled descent after the valve closes, preventing sudden and abrupt stops.
