Butterfly valve

for ships

This valve is provided both butterfly valve and quick check closing function. The valve is consisted of hydraulic cylinder, counter weight for emergency shut-off and hydraulic generator unit, etc. In normal condition, it is used as a general valve. In emergency condition. (e.g. power failure, a condition of urgently closing the valve as there is no continuous operating sources)however. all hydraulic circuits are converted to shut-off circuits which can close the valve by operation of weight for emergency shut-off and a lever. Shut off speed can be adjusted by a relief valve on hydraulic generator unit.