Abstract: A bulkhead arrangement for flooding a space comprises at least one bulkhead element, which has sealing elements at side boundary surfaces and one boundary surface toward the floor and which can be connected at side connection sites to an infrastructure and/or another bulkhead element for sealing off the space and then flooding the space with an extinguishing agent, wherein the bulkhead element comprises a variably adjustable outflow opening in the direction of the height of the bulkhead element.