Hydrant valve

摘要

In a hydrant valve, which s with respect to state-of-the-art solutions essentially simplified and also much more reliable, a sealing passage (4) is adapted to cooperate with a valve disc (5) and is located adjacent to the outlet opening (3), wherein an additional chamber (9) is foreseen within a casing (1) between said sealing passage (4) and the intake opening (2), which is in the transversal direction relative to the geometric axis (23) throughout the outlet opening (3) sufficiently deflected to receive the valve disc (5), when it is pivoted from the area of the sealing passage (4) at least for such extent that a probe or a similar device for inspecting of the interior of the pipeline (P) can be introduced throughout said sealing passage (4). The valve disc (5) is displaceable into said area of the sealing passage (4) or optionally also outside from said area, by means of a spindle (6), which is embedded within the casing (1) and can be rotated around its longitudinal axis (60) extending parallel with respect to said axis (23) of the outlet opening (3), wherein at least a part (61) of said spindle (6) protrudes outside from the casing (1). A nut (7) is placed on said spindle (6), which is by turning the spindle (6) around its longitudinal axis (60) displaceable along said axis (60), and a lever (8) in the form of cantilever with attached valve disc (5) on its free end portion is connected with said nut (7), so that said lever (8) is together with the nut (7) displaceable along said axis (60) of the spindle (6), but at the same time it is freely rotatable relative to said nut (7) around the axis (60) of the spindle (6).