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Graphite seal / high-pressure - max. 650 °C | 5900
The 5900 Series, manufactured by Chesterton, is a series of high-pressure graphite bonnet seals. This series of seals provide the users in the power industry with enhanced reliability as well as leak tightness of pressure seal bonnet joints. In addition, these seals are specifically designed to be used on valves with screwed/bolted bonnets in steam or water.