Patent ID: 8371553
Filing Date: 2013-02-12
Classification: F16K

Abstract:
1. A valve device comprising: a valve body defining a fluid flow duct; a throttle element disposed in the valve body and adapted to be turned about its axis by actuator means via a drive shaft, the throttle element having: a gasket-carrier tube that is disposed within the fluid flow duct; and an annular sealing gasket that is coupled to a distal end of the gasket-carrier tube disposed in the fluid flow duct so as to surround an opening in the gasket-carrier tube, said gasket structured and arranged to continuously maintain contact with the annular ring at least at the periphery of the bottom edge of the bottom portion of the throttle element and with the circular wall of the internal cavity as the throttle element is turned about its axis between the fully-open position and the fully-closed position, and said tube opening and gasket being distal from the axis of the throttle element, wherein said axis does not penetrate said tube opening or gasket as said throttle element rotates about said axis.