The VOCON valve and reporting system controls the vapour pressure in oil cargo tanks to minimise and fully control VOC (volatile organic compounds) emissions.
Designed to comply with the latest international rules and regulations, it is equipped with an advanced reporting system.
At the centre of the system, a venting control valve operated by a Rotork CMA electric process valve actuator is installed on the bypass line between the IG (inert gas) main pipeline and the mast riser.
In automatic mode the actuator modulates the valve position in response to a signal from a pressure transmitter to control the vapour pressure in all the cargo tanks. This critical duty reduces VOC loss by maintaining a constant pressure in the cargo tanks during the voyage.
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