Vonberg safety valves shut off flow in the event of a broken line or severe surge condition, and remain closed while the pressure exceeds the closing pressure drop. They will automatically reset when the pressure is equalized across the valve. Line shut-off is intended to prevent equipment damage, fluid loss, and subsequent environmental harm when sized and utilized in the proper applications. See available technical bulletin for more information.
Velocity fuses provide full-line shut-off, while Flow Limiters provide partial-line shut-off with a controlled, metered flow after closing.