PROCEDE POUR FABRIQUER UN ENSEMBLE COUPELLE/VALVE, ENSEMBLE COUPELLE/VALVE ET PRESSE POUR LA MISE EN ŒUVRE DU PROCEDE

摘要

The method involves maintaining a stem in closed position in absence of an external constraint by a spring element. An interior joint (320) is placed in a dome of a bowl. An external joint (311) is arranged in a fixing side of the bowl. The interior joint and/or an external joint are molded directly into the bowl, where the external joint and the interior joint are molded simultaneously from an injector channel. Passages are placed in a mold and/or the bowl. An independent claim is also included for a molding equipment for manufacturing a bowl assembly/valve.