Flow control

Flow control in an accumulator tank or a boiler for a heating system for reducing the flow velocity of a liquid heating medium flowing into the accumulator tank or boiler, wherein the flow control (1) comprises an inner substantially tubular member (5) and an outer substantially cylindrical member (6) which defines a space (7) for accommodating at least a part (5a) of said inner tubular member, the inner tubular member (5) is at one end (5c) thereof configured with an inlet opening (8) for a liquid heating medium flowing into the accumulator tank (2) or boiler and at least one outlet opening (9) in a side wall thereof, a deflector means (10) is provided in the inner tubular member (5) at the outlet opening (9) for deflecting the flow of liquid heating medium out of the inner tubular member through said outlet opening, a perforated member (12) is provided on the inner tubular member (5) covering at least the outlet opening (9) such that the flow of liquid heating medium deflected through said outlet opening passes through perforations (13) in said perforated member, the outer cylindrical member (6) comprises a solid part (14) and a perforated part (15), and the outer cylindrical member (6) is positioned around the inner tubular member (5) such that the solid part (14) thereof is located substantially opposite to the outlet opening (9) in the inner tubular member for deflecting the flow of liquid heating medium from said inner tubular member towards the perforated part (15) of the outer cylindrical member and through perforations (16) therein into the interior (2a, 2b, 2c) of the accumulator tank (2) or boiler.