Functional description

P&ID BE55-1-SP300S

The high-pressure safety stop SP300-E is an indirect-action safety shut-off device (SSD) with outlet pressure actuation. The intended use is the immediate interruption of the gas flow between the gas source and downstream valves in the event of an impermissible increase in the outlet pressure.
A key feature is a relief valve built into the outlet pressure. By connecting the relief valve to a control pressure line, the SP300-E is driven with its own medium.