... 1st separator through Seawater initial filter and bottom valve, floating ball non-returned valve V1. There is an oil chamber in ... is in operation, Vs3 is opened automatically while the flushing valve Vs2 is closed. When the oil accumulates to interface ... fLow into outboard valve through outlet ball valve V3, check valve V5, flow meter, pneumatic triple valve VS6 and manual triple valve V7. The part ...