Valve for pressure gas packing - has seal dimensioned to maximise charging cross section in clamping region

摘要

The valve for pressure gas packing has a sealing disc whose dimensions are chosen so that a sufficiently large charging cross-section can be attained. To achieve this the external dia. (D8) of the essentially circular disc (8) amounts at most to 116% of the external diameter (D7) of the clamping border (7). The disc dia. 112% of that of the clamping border. The external disc dia. lies between 8 and 20mm and its thickness between 1 and 2 mm. The disc is made from a material exhibiting a Shore hardness of at least 70.