Pressure activated safety shut-off valve, in particular, for fuel gas supply systems comprises a limited flow-off path for leaked gas at the pressure sensor of the valve

摘要

To prevent a pressure build-up caused by accumulation of leaked gas at the pressure sensor of the safety shut-off valve, a limited flow-off path (84) is provided for such gas. As a result, premature activation of the snap-action closure unit of the shut-off valve is prevented.