DISC PARALLEL PIPELINE VALVE Russian patent published in 2016 - IPC F16K3/14 F16K3/18 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to parallel pipeline valves with sliding spindle, and can be used as equipment of pipelines of various purpose. Valve consists of body 1 with jaws 2, sliding spindle 3, attached thereto wedge spacer element 4, gate discs 5, cover 6 with gland unit 7. On body 1 there are upper supports 8, and on rear beveled surfaces of gate discs 5 there are shaped (in this case, T-like) slots. On side surfaces of wedge spacer 4 there are mating protrusions to T-shaped slot. In lower inner surface of body 1 there are lower supports 9 for restriction of vertical movement downwards of gate discs 5. To generate additional force lifting wedge spacer element 4 and prevent premature lifting of gate discs 5 in wedge spacer element discs the thrust element 4 there are springs 10 with pushers 11, and on rear surfaces of gate discs 5 there are supports 12 for pushers 11.

EFFECT: higher reliability due to reduced wear of seals while simplifying design and improving manufacturability thereof.

1 cl, 3 dwg