Patent ID: 7343928
Filing Date: 2008-03-18
Classification: F24D,G05D,Y10S,Y10T

Abstract:
1. A regulator insert ( 2 ) for valves, in particular for controlling liquid flow in a plant for central heating or air-conditioning, which insert ( 2 ) comprises inflow openings ( 9 ) and a plurality of slot-shaped outflow openings ( 10 ) extending in the axial direction of the insert and being, via a roller membrane ( 11 ), closable in response to the difference in pressure across the insert ( 2 ) under the influence of a spring ( 14 ) that seeks to keep the outflow openings ( 10 ) open, characterised in that the slot-shaped outflow openings ( 10 ) have at least two different lengths, whereby complete closure of at least some of the outflow openings ( 10 ) can take place only consecutively; and that at least one of the slot-shaped outflow openings ( 10 ) has such length that complete closure thereof by means of the roller membrane ( 11 ) is not possible.