A lid for opening and closing fast with prisoners at the bottom for attachment to standard flange

摘要

"Cover for opening and closing fast with prisoners at the bottom for attachment to standard flange.Understood by the nozzle to be fitted in its lower section, which has recessed coupler for coupling the threaded blind holes of prisoners, and the said recessed couplers.In its inner section projects a rebound fitted radially grooves or channel for fixing gasket.Which is positioned on a flange fixed to the nozzle through a locking nut.