| 摘要 |
The invention relates to a throttle device, comprising a butterfly valve which can be fitted into a flange joint of a conduit structure. The butterfly valve (26) can be integrated into a butterfly valve module (29). In order to increase the tightness of the butterfly valve in the closed position or to prevent rattling, the seals (15) which are necessary for sealing the flange joint (10) are guided into the interior of the conduit structure using sealing struts (16), where they form bearing surfaces for the edges of the butterfly valve. This construction does not involve any additional expenditure as no additional seals are required. The sealing struts can be directly injected onto the seals which are already required, involving no additional production steps. This has positive repercussions on the cost-effectiveness of the inventive solution.
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