Free-wheel non-return valve arrangement for a centrifugal pump for degassing liquefied gas comprises a degassing valve having a valve body formed as a rolling body in a valve chamber

摘要

Free-wheel non-return valve arrangement comprises a degassing valve (38) having a valve body (40) formed as a rolling body (41) in a valve chamber (42). The valve chamber has an inclined rolling body path (44) formed between a higher closing position and a lower opening position. The rolling body closes a degassing opening in its closed position and is not closed in its opening position.