| 摘要 |
The coupling for a hose connection on a container comprises a fixed coupling part (1) which can be knocked onto the container and a loose coupling part (2) which is seated on the hose (30). The arrangement in this case is such that in each case one metal sleeve (5 or 6) is inserted into the through-opening (3) of the fixed coupling part (1) and into the through-opening (4) of the loose coupling part (2), in which sleeve (5 or 6) at least the inner jacket (7 or 8 respectively) and the ends (9, 10 or 11 respectively) forming the sealing surfaces carry a coating (12) consisting of polyfluorinated plastic. In this case, the sleeve (5) in the through-opening (3) of the fixed coupling part (1) on the stop side forms a tube flange (5') which overhangs the coupling part (1), has an end sealing surface (9) and can be connected directly or via a flange-like collar (13) to the container. Furthermore, on the hose side, the sleeve (6) in the through-opening (4) of the loose coupling part (2) forms a hose connecting nozzle (6') which overhangs the coupling part (2) and whose outer jacket (14) is likewise at least partially coated with the polyfluorinated plastic (12). This results in a rapid-closure coupling which makes it possible to fulfil all the conditions relating to sealing and resistance capability with a very simple design and capabilities for re-equipping existing couplings. In particular, it is now also possible to use such couplings for long periods and economically for decanting corrosive chemical fluids. <IMAGE>
|
