Explosion-proof valve for separating components or workpieces of system, comprising sealing ring

The invention relates to an explosion-proof valve for separating system components or workpieces for pipeline installation, comprising a housing (1), a closing body (7) which is axially guided on a guide rod (13) in the housing (1), the closing body (7) has a guide rod (13) and can be displaced from a defined open position into a sealed closed position in the event of a pressure or suction wave in at least one closing movement direction in the line,-a spring assembly (18) in operative connection with the closing body (7), on the guide rod (13) for holding the closing body (7) in the open position, the invention relates to a closing device (1) for closing a closure body (7), comprising a housing (1), a sealing ring (19) on the inside of the housing (1), against which the closure body (7) can be pressed in its closed position (15), and a receiving groove (21), which is applied to the inside (20) of the housing (1) and which is preferably open opposite the closing movement direction (SB) of the closure body (7),