Self-contained subsea PLEM

Suitable for both CALM buoy and conventional buoy mooring systems, the ASV is a self-contained subsea package comprising PLEM valve, spring-return actuator and long life, battery control system. The actuator’s motive power comes from the pressure in the subsea pipeline, to open the valve. Once pumping operations are completed, the pipeline’s pressure drop enables the actuator spring to move the PLEM valve to the closed failsafe position. The valve closure speed can be controlled to suit the terminal. The ASV is designed to be inherently failsafe; and provides automated control of subsea valves for up to 7 years before requiring any servicing.