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Application filed by Scubapro EuropfiledCriticalScubapro Europ
Priority to IT95MI000582ApriorityCriticalpatent/IT1275965B1/en
Publication of ITMI950582A0publicationCriticalpatent/ITMI950582A0/en
Publication of ITMI950582A1publicationCriticalpatent/ITMI950582A1/en
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Publication of IT1275965B1publicationCriticalpatent/IT1275965B1/en
An aqualung device 1, having an improved degree of reliability, comprises a pressurised pipe 6 connected to a valve group 3, and a sleeve 7 for pressurised pipes 6 in the region of said valve group 3 and a seat 13 formed on said sleeve 7 for a reserve sealing ring A. <IMAGE>
1/2 SPHERICAL VALVE FITTED WITH A SINGLE DIFFERENTIAL SEAT, BI-DIRECTIONAL, IMPLEMENTED BY LINE PRESSURE FOR LINES AND PIPE LINES OF LARGE NOMINAL DIAMETERS