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Burst Protection Valves

The burst protection valve, or flow limiting valve, was developed for safety reasons. The valve is designed to prevent a dangerous, uncontrolled discharge of high pressure gas in the event of pipeline or component failure. A sudden drop in pressure across the valve, resulting from a downstream line failure, automatically causes a spring biased spool to move across and shut off the flow. The flow rate at which this shut off occurs is set by means of a lockable metering spindle which determines the area of control orifice.