Airing and venting elements for pipes and fittings

Details Airing and venting elements for pipes and fittings Airing and venting elements for pipes and fittings

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 24/00 (2006.01) F16K 31/18 (2006.01)

Patent

CA 2622880

The invention relates to an airing and venting valve for pipes and fittings carrying fluid, with an essentially cup-shaped valve body (6) becoming smaller in cross-section towards the bottom for closing and opening a valve outlet (3), with a seal cup (9) co- operating with a float (11) of the valve, and with a cup seal (8) which is disposed between the valve body and seal cup (9) and is able to move into different closing and opening positions lying across passage orifices (10) of the valve body (6). By virtue of one aspect of the invention, the seal cup (9) has an internal contour which becomes wider towards the top conforming to the external contour of the valve body (6). By virtue of another aspect, the valve body (6) is disposed so that it is able to move against its seat (4) at the valve outlet (3) so that it can release and close a pas passage in the region of the valve body seat (4).

L'invention concerne un robinet d'aération et de ventilation pour les conduites et raccorderies transportant des fluides, avec un corps de robinet essentiellement en forme de coupelle (6) devenant plus petite en vue de coupe vers le fond pour fermer et ouvrir un conduit d'écoulement (3), avec un godet d'étanchéité (9) qui coopère avec un flotteur (11) du robinet, ainsi qu'une coupelle d'étanchéité (8) qui est disposée entre le corps de robinet et le godet d'étanchéité (9) et peut se déplacer dans différentes positions d'ouverture et de fermeture à travers les ouvertures (10) du corps de robinet (6). Selon un aspect de l'invention, le godet d'étanchéité (9) comprend un contour interne qui devient plus large vers le haut se conformant au contour externe du corps de robinet (6). Selon un autre aspect, le corps de robinet (6) est disposé afin qu'il puisse se déplacer contre son siège (4) au conduit d'écoulement (3) afin qu'il puisse ouvrir et fermer un passage dans la région du siège du corps de robinet (4).

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