The modular design of the VARIVENT® valve system provides many optional versions to perfectly adapt the valve to the process. VARIVENT® mixproof valves are especially used for mixproof shut-off of "hostile" media at pipeline crossing points. When the valve is closed, there are always two seals between the separated pipelines.
If one seal is defective, the resulting leakage will be directed through the leakage outlet into the periphery, without mixing with the product in the second pipeline. This method enables that there is no mixing between the products from two pipelines.
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