DRIVE FOR PIPELINE VALVES Russian patent published in 2015 - IPC F16K31/122 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely to valve manufacturing, namely to spring loaded hydraulic or pneumatic drives, and can be used to control the pipeline valves, operated in various purpose pipelines. The target is ensured by the fact that drive for the pipeline valves contains secured on bonnet the support plate with installed drive interacting with the spring drive, its stock is coaxially linked with spindle controlling the gate of the pipeline valve, at that spring and pneumatic drives are installed horizontally in series, and are connected with each other by system of double arm gears enclosing the specified drives, and hinges controlling the spring drive are installed between the fixed hinges secured on the support plate, and hinges connecting the control levers and tie-rods, in bottom part connected with each other by beam kinematically connected with stock of the pneumatic(hydraulic) drive.

EFFECT: invention target is creation of the pneumatic (hydraulic) drive with possibility of its use for normally opened pipeline valves, gates (wedge, shutter), butterfly gates, including for high values of NB, Pset.

3 dwg