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Robust separation seal for a safe compressor shutdown

| By Mary Page Bailey and Gerald Ondrey

The CobaSeal (photo) is a robust separation seal with a unique coaxial operating principle. Design studies confirm the CobaSeal maintains its mechanical integrity up to 70 bars and minimizes process gas flow to the bearing cavity when retained properly. The CobaSeal has established an impressive safety and reliability track record. For example, in a particularly challenging application, CobaSeal experts successfully developed a separation seal solution to withstand 200 bars housing pressure. — EagleBurgmann Germany GmbH & Co. KG, Wolfratshausen, Germany