Automatic air-outlet device for fluid-channelling pipelines, with a pressure-compensation system

摘要

Automatic air-outlet device for fluid-channelling pipelines with a pressure-compensation system. Automatic air-outlet devices for fluid-channelling pipelines serve to vent water-supply networks, but also long-distance crude-oil pipelines. The automatic air-outlet device comprises a round basic body which is approximately in the form of an upwardly open pot and is lengthened downwards by a neck for connection by means of a flange, while, in its upper opening, it exhibits a further flange for fastening a cover. Said flange permits the attachments, from the outside, of devices connected to the cover. The device serves to vent pipeline systems.