A lifting valve includes a first and a second connection, a passage connecting the first and second connections and surrounded by a valve seat, a closing element that can be brought into sealing contact with the valve seat, and an actuator to bring about the sealing contact. The closing element includes a sealing arrangement comprising a first part, a second part releasably connected to the first part, a first groove formed in the first part, a second groove, and a clamping gap. The second groove and clamping gap are formed between the first and second parts, and a seal comprising a first leg, a second leg, and a third leg is received in the sealing arrangement. The first leg is received in the first groove, the second leg is received in the second groove, and the third leg is received in the clamping gap.