Cooling Water Systems of Semi-submersible Oil Production Platforms: What Does a Vacuum Breaker Do?

A semi-submersible offshore platform is employed for the deep-sea exploitation of an oil reservoir deposited beneath a salt layer having several kilometres of thickness off the South American coast (pre-sál-layer).

The cooling water system of the offshore platform requires pipelines and valves that are suitable for the extreme marine atmosphere of a deepwater oil rig. A vacuum breaker is commonly installed in the cooling water system to protect the under-pressure range by means of an adjustable element.

The vacuum breaker has been designed for a temperature range of -10 °C through to +60 °C. Its outdoor installation required a protective cage to avoid unintended intrusion of foreign particles or sea birds when air is sucked in.

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Mankenberg Vacuum Breaker and Vacuum Control Valve VV 34

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