Patent ID: 6086040
Filing Date: 2000-07-11
Classification: F16K

Abstract:
A valve assembly comprising a pressure medium operated valve having a valve spindle communicating with a valve cone, an actuator connected to the valve, said actuator being a cylinder with a piston communicating with the valve spindle and a control unit mounted on the end of the actuator facing away from the valve for supplying pressure medium for movement of the piston of the actuator against spring power or any other power from a normal position, in which the valve is optionally opened or closed, to the opposite position, in which the valve is closed or opened, the control unit comprising a pressure medium passage having a first end for supplying a pressure medium, characterised in thatthe control unit is provided with coupling means on the end facing the actuator for releasable connection with coupling members on the actuator at axial, non-rotational joining with the actuator,a second end of the pressure medium passage ending in a branch or opening for pressure medium tight connection with an opening or a branch respectively in the actuator at the joining anda usually closed valve member is inserted into the pressure medium passage having a member connected to a moveable part of the valve member and projecting through the control unit, the outer end of said member abutting the actuator at the joining, whereby the valve member is opened.