Patent ID: 8998171
Filing Date: 2015-04-07
Classification: F16K,F16L,Y10T

Abstract:
1. A control valve for connection unit for flexible pipes, comprising a plurality of sectors rotatable between a completely open position and a completely closed position, wherein said plurality of sectors comprises at least two series of sectors of different shape and dimensions disposed in an alternate way along the circumference of the connection unit; wherein the at least two series of sectors includes a series of sector of a larger size relative to the other series of sectors and series of sectors of a smaller size a relative to the other series of sectors, wherein each sector of the series of sectors of the larger size have a V-shaped extremity whose sides, when in the completely closed position, abut in a fluid tight fit manner against corresponding sides of adjacent sectors of the same series, and have lateral sides with an arched extremity that, when in the completely closed position, is leaned on by an adjacent side of a sector from the series of sectors of the smaller size that is interposed between two sectors from the series of the sectors of the larger size, and wherein each sector of the series of sectors of the smaller size have a rounded extremity that, when in the completely closed position, engages tightly with the arched extremities of two adjacent sectors from the series of sectors of the larger size, and have straight sides that, in the completely closed position, engage tight with lateral sides of the two adjacent sectors from the series of sectors of the larger size.