What about the selection of large gaskets for glass-lined reactors?
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Currently, the company uses PTFE gaskets as sealing elements for the openings of its glass-lined reactors. After more than a year of use, these gaskets age and harden, resulting in a decline in their sealing performance and gradual leakage of materials. Does anyone have a more suitable sealing material? Operating temperature: 130°C, up to 50 KPa, with hydrogen chloride gas present in the material.
EPDM gaskets or silicone rubber gaskets can be considered for use. Both of these materials exhibit superior temperature and chemical resistance compared to PTFE packing; especially in the presence of hydrogen chloride gas, they provide better sealing performance and a longer service life. .
Graphite gaskets or silicone rubber gaskets can be considered. Graphite gaskets have excellent heat resistance and chemical stability, making them suitable for high-temperature and corrosive environments. Silicone gaskets possess good heat resistance and flexibility, and are also suitable for use in certain chemical media. Based on the operating conditions you provided, both of these gaskets are good choices. However, when making the selection, the specific dimensions and interface types of the reactor must also be taken into account to ensure that the gaskets can be installed correctly and function properly. .
Fluorosilicon asbestos gaskets were used, but they didn’t work well; rubber-coated fluorine gaskets and asbestos gaskets were also tried, but none of them were satisfactory