SHUTOFF AND CONTROL DEVICE Russian patent published in 2022 - IPC F16K11/16 F16K3/02 F16K31/44 

FIELD: valve industry.

SUBSTANCE: invention relates to valve industry and can be used as a shutoff and control device in process pipelines for various purposes. Shutoff and control device comprises a housing with inlet and outlet channels, in the latter there is a seat closed by both a gate and a flap, which sequence of movement relative to the seat is determined by the control mechanism. Control mechanism is made in the form of a lever pivotally fixed on the housing bracket, passed through the hole in the spindle and through the hole in the rod controlling the flap, note here that said spindle is engaged with said gate via slider and four-link lever mechanism interacting with cover guides when the spindle is moving.

EFFECT: higher reliability of device.

1 cl, 3 dwg