A plate (1, 1A; 1'; 1"; 1'''; 1"") for a heat exchange arrangement for the exchange of heat between a first and a second medium, wherein: - the plate has a first heat transferring surface (A; A'; A"; A'"; A"") arranged in use to be in contact with the first medium and a second heat transferring surface arranged in use to be in contact with the second medium; - the plate is configured with a first inlet porthole (2; 2'; 2"; 2"'; 2"") for the first medium and an inlet porthole (4; 4'; 4"; 4"'; 4"") for the second medium, and a first outlet porthole (5; 5'; 5"; 5"'; 5"") for the first medium; characterized in that: - the plate comprises at least a second inlet porthole (3; 3'; 3"; 3"'; 3"") for the first medium and at least a second outlet porthole (6; 6'; 6"; 6"'; 6"") for the first medium; - the first heat transferring surface is configured with at least one protrusion (7; 7'; 7"; 7"'; 7"") forming a continuous and closed ridge which is arranged to divide said heat transfer surface into at least a closed inner region (A1; A1'; A1"; A1 A1"") and an outer region (A2; A2'; A2"; A2"'; A2""); - the inner region completely encloses the first inlet porthole for the first medium, the first outlet porthole for the first medium and the inlet porthole for the second medium; and - the second inlet porthole for the first medium and the second outlet porthole for the first medium are located in the outer region. - the plate has a first heat transferring surface (A; A'; A"; A'"; A"") arranged in use to be in contact with the first medium and a second heat transferring surface arranged in use to be in contact with the second medium; - the plate is configured with a first inlet porthole (2; 2'; 2"; 2"'; 2"") for the first medium and an inlet porthole (4; 4'; 4"; 4"'; 4"") for the second medium, and a first outlet porthole (5; 5'; 5"; 5"'; 5"") for the first medium; characterized in that: - the plate comprises at least a second inlet porthole (3; 3'; 3"; 3"'; 3"") for the first medium and at least a second outlet porthole (6; 6'; 6"; 6"'; 6"") for the first medium; - the first heat transferring surface is configured with at least one protrusion (7; 7'; 7"; 7"'; 7"") forming a continuous and closed ridge which is arranged to divide said heat transfer surface into at least a closed inner region (A1; A1'; A1"; A1 A1"") and an outer region (A2; A2'; A2"; A2"'; A2""); - the inner region completely encloses the first inlet porthole for the first medium, the first outlet porthole for the first medium and the inlet porthole for the second medium; and - the second inlet porthole for the first medium and the second outlet porthole for the first medium are located in the outer region. - the plate comprises at least a second inlet porthole (3; 3'; 3"; 3"'; 3"") for the first medium and at least a second outlet porthole (6; 6'; 6"; 6"'; 6"") for the first medium; - the first heat transferring surface is configured with at least one protrusion (7; 7'; 7"; 7"'; 7"") forming a continuous and closed ridge which is arranged to divide said heat transfer surface into at least a closed inner region (A1; A1'; A1"; A1 A1"") and an outer region (A2; A2'; A2"; A2"'; A2""); - the inner region completely encloses the first inlet porthole for the first medium, the first outlet porthole for the first medium and the inlet porthole for the second medium; and - the second inlet porthole for the first medium and the second outlet porthole for the first medium are located in the outer region.