Autonomous Shutdown Valve

Overview

Autonomous Shutdown Valves (ASV) are designed to operate subsea PLEM valves used in CALM Buoy and similar tanker loading/unloading subsea pipeline systems. Comprising of a subsea hydraulic valve actuator and control system, the ASV can operate subsea pipeline ball valves on demand or automatically based on pipeline pressure changes. The ASV also provides fully automatic and reliable fail-safe valve automation of subsea PLEM valves to isolate subsea pipelines from flexible risers in all weather conditions.

Applications

Valve automation of subsea PLEM valves used in subsea pipeline loading systems, CALM Buoy pipeline systems and similar systems.

Operating Ranges

Water depths down to 200m

Key Features & Benefits

Fully automatic fail-safe operation of subsea PLEM valves

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