GAS PRESSURE CONTROL VALVE Russian patent published in 2013 - IPC G01L7/00 

FIELD: machine building.

SUBSTANCE: strong spring 7 fitted on spherical bearing 10 transmits its force to membrane 4 via disc 8 located thereon and provided with ledge 9 to rule out membrane skew decreasing cycle life. Prior to tightening spring 7 by screw 11, damper plate 5 is centred at plate spring 6 and contracted by spring force to maintain invariable friction during pressure control valve operation thanks to uniform butt between plate 5 and faces of plate spring 6. Pusher 3 is rigidly arranged inside and at the centre of ledge 9 of disc 8 to transmit force to valve 2 composed of ball to ensure precision of maintained controlled parameters so that valve warp.

EFFECT: higher stability and precision.

1 dwg