Autonomous Shutdown Valve PDF Print E-mail

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Overview
Used in CALM Buoy pipeline systems, the Autonomous Shutdown Valve (ASV) package comprises of a hydraulic actuator and subsea control system to operate the subsea pipeline ball valve on demand by detecting pipeline pressure changes and initiating valve stroking. The ASV provides fully automatic fail-safe operation of a PLEM valve to isolate the pipeline from the flexible riser, irrespective of weather conditions.

 

Applications
Pipeline loading systems, CALM Buoy pipeline systems and similar systems.

 

Operating Ranges

  • Water depths up to 200m

 

Key Features & Benefits

  • Fully automatic fail-safe operation of a PLEM valve
  • Reliable and requires no operator intervention
  • Significant operational cost savings
  • Automatic line-break detection and shutdown
  • Reduced risk of pollution and loss of sealine inventory
  • Remote status monitoring, override control and in-situ diagnostics
  • Specifically designed for high reliability in the harshest operating conditions
  • Proven subsea technology across all system components
  • LiMnO2 batteries provide an expected operational life of 5 to 7 years
  • Also suitable for land based applications in which power supplies are limited or unavailable

 

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