The present invention relates to a valve arrangement (100, 200, 300, 400, 500) for a suction device, in particular for construction-site vacuum cleaners, the valve arrangement (100, 200, 300, 400, 500) comprising the following: a shut-off body (102, 202, 302, 402, 502) which can be transferred between a closed position and an open position; an actuating device having at least one actuating means (104, 204, 304, 404, 504) which is designed to transfer the shut-off body (102, 202, 302, 402, 502) from the closed position into the open position, wherein the actuating means (104, 204, 304, 404, 504) of the actuating device is movable along a first actuation path (128, 228, 328), wherein the shut-off body (102, 202, 302, 402, 502) is movable along a second actuation path (130, 230, 330) between the closed position and the open position, and wherein the second actuation path (130, 230, 330) is longer than the first actuation path (128, 228, 328).