FIELD: machine building.
SUBSTANCE: completely suitable for re-use valve body made with possibility of interaction with manhole of the tank, such as beer cask, has internal passage (25) for liquid, and concentric external passage (14) for gas under pressure, with holes (21) for gas under pressure intake to the tank. Immersed pipe (5) connected with bottom end fitting (4) communicating with valve rod (8) inside the valve body. The valve element (6) is made with possibility to control the flow through the concentric passages, at that the spring element (7) located around the rod (8) of the valve pushes the valve element upwards to close the passages. Spring element (7) is formed out of elastic polymer material and contains multiple C-shape sections (7a), installed with inclination in two connected with each other footsteps at opposite sides of the valve rod such that movement of the valve element (6) by means of the valve drive element results in simultaneous elastic deformation of all sections.
EFFECT: improved design.
7 cl, 1 dwg
