Contain 'Normal' leakage from primary seals

Dry containment seals have gained popularity over the last few decades and provided reliable service. The refinery sector has used this sealing technology to limit fugitive emissions in a cost-effective manner by not incurring the cost of liquid dual-seal systems. Little has been written about monitoring the condition of dry containment seals during operation, or how they behave in the event of high levels of leakage from a primary seal. These issues, and comparisons with other sealing options, are discussed here.

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