Exploratory room-temperature gasket leakage tests were performed on different types of asbestos-filled spiral wound gaskets. Under investigation were the following parameters: gasket pre-wetting, gasket width, spiral winding density, load cycling, and use of water instead of nitrogen as the pressurized fluid. The results indicate that the first three parameters have only a marginal effect on gasket leakage performance. Of major significance, however, is the fact that unloading-reloading the gasket from and to some intermediate assembly stress level does not affect its behavior at a higher assembly stress. A previously introduced tightness parameter has proved useful for interpreting the data.
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| Number of Pages : | 16 |
| Published : | 1987 |
