INSERT FOR DYNAMIC FLOW CONTROL

摘要

An insert for being mounted in a valve housing ( 80 ) or a tubular member for dynamic flow control of a flowing medium. The insert comprises:-a first cup-shaped part ( 1 ) provided with an outflow area;-a second cup-shaped part ( 10 ) arranged axially displaceably within the first cup-shaped part ( 1 ) and provided with an inflow area;-a pressure spring ( 30 ) arranged for exerting a force (F) that seeks to force the two cup-shaped parts ( 1, 10 ) away from each other. The second cup-shaped part ( 10 ) is configured such in relation to the first cup-shaped part ( 1 ) that the inflow area of the first cup-shaped part ( 1 ) is closed in response to a displacement of the second cup-shaped part ( 10 ) in relation to the first cup-shaped part ( 1 ). Besides the inflow area of the second cup-shaped part ( 10 ) comprises at least one axial inflow slot ( 12 ) provided in 15 a sidewall ( 18 ) of the second cup-shaped part ( 10 ), which inflow slot ( 12 ) is closed in response to the displacement of the second cup-shaped part ( 10 ) in relation to the first cup-shaped part ( 1 ).