Abstract: The invention refers to a plate heat exchanger with a plate package (1) comprising a plurality of heat exchanger plates, which are stacked onto each other. The heat exchanger plates form first plate interspaces for a first medium and second plate interspaces for a second medium. A casing encloses the plate package and comprises a circular cylindrical outer envelope (6) and two end plate members (7, 8). The outer envelope defines the center axis (x) through the two end plate members. A first inlet (11) and a first outlet (12) convey the first medium into and out from the plate heat exchanger through a respective end plate member. A second inlet (21) and a second outlet (22) convey the second medium into and out from the plate heat ex-changer. The plate package has a space which is disposed inside the first inlet and the first outlet.

Abstract: The invention relates to a plate heat exchanger with a plate packet including a plurality of heat exchanger plates, which are stacked onto each other. The heat exchanger plates form first plate interspaces for a first medium and second plate interspaces for a second medium. The plate package has a space which is disposed inside a first inlet and a first outlet. Structure is arranged for creating, for each of the first plate interspaces, an inlet opening for the first medium from the space into the first plate interspaces and an outlet opening for the first medium from the first plate interspaces to the space.

Abstract: The invention relates to a plate heat exchanger with a plate package (1) including a plurality of heat exchanger plates, which are stacked onto each other. The heat exchanger plates form first plate interspaces for a first medium and second plate interspaces for a second medium. A casing encloses the plate package and comprises a circular cylindrical outer envelope (6) and two end plate members (7, 8). The outer envelope defines the center axis (x) through the two end plate members. A first inlet (11) and a first outlet (12) convey the first medium into and out from the plate heat exchanger through a respective end plate member. A second inlet (21) and a second outlet (22) convey the second medium into and out from the plate heat exchanger. The plate package has a space which is disposed inside the first inlet and the first outlet.

Abstract: A valve and use of a valve. The valve changes the direction of flow of a fluid in pipings conducting the fluid to and from a heat exchanger. A cylindrical casing and a valve body enclosed therein can be rotated between two positions. The valve body has three flow passages. A fourth flow passage is constituted by the space between the house of the valve and respective walls around the flow passages in the valve body. The entire valve is flushed by the fluid during operation, thereby eliminating the risk for accumulation of dirt in the valve.

Abstract: The invention refers to a heat exchanger plate (4) for a plate heat exchanger (1), a plate package (3) and a plate exchanger (1). The plate (4) includes at least a first area (31) with a corrugation of ridges and valleys, the plurality of which extends in a first direction (A), and at least a second area (32) with a corrugation of ridges and valleys, the plurality of which extends in a second direction (B). The plate (4) has a central rotary axis extending in parallel with a normal line of the plate. The areas (31, 32) have a respective contour coinciding with a respective imaginary contour in a first rotary position of the plate with regard to the rotary axis and after a rotation 90° to a second rotary position of the plate with regard to the rotary axis.

Abstract: The invention refers to a heat exchanger plate (4) for a plate heat exchanger, a plate package, and a plate heat exchanger. The plate includes an edge, which extends around the plate, an edge area (6) which extends around the plate inside the edge, and a heat exchanging surface (5) with a corrugation of ridges and valleys which extend in at least a first direction (A, B) over the plate (4). Furthermore, the plate includes a support area (41), which extends around the heat exchanging surface (5) inside the edge area (6) and includes a corrugation of ridges (42) and valleys (43).

Abstract: A plate heat exchanger (1) comprises a stack of heat transfer plates (2) provided between two end pieces (3, 4) and each having an essentially plane extension. Each end piece (3, 4) has an inner surface (9) facing said heat transfer plates and an outer surface (14) facing away from said heat transfer plates (2) and extending from one side to another of the end piece (3, 4). The plate heat exchanger (1) is compressed by means of at least one member (18) extending around the plate heat exchanger and abutting said outer surface (14) of each end piece (3, 4) in order to prevent the retreat of the end pieces from each other. The outer surface (14) of each end piece (3, 4) is curved in such a manner that the end piece has a convex shape in a cross section along a first plane (Y, Z) being perpendicular to the essentially plane extension of the heat transfer plate (2).