The article is dedicated to the issues of ecological safety while using submersible hydraulic drives and floating machines which consume organic-base and synthetic-base hydraulic fluids. Such hydraulic fluids are marine pollutants in compliance with the criteria defined by the provisions of MARPOL 73/78 (International Convention for the prevention of Pollution from Ships). The leakages of the above mentioned fluids during submersible hydraulic drives operation cause the environmental pollution. By the example of the submersible hydraulic drive with the capacity of 10 kwt the volumes of possible leakages and burst releases were identified as well as the possible expenses to respond the consequences of emergency situations which affected the environment by the exhaust of the definite amount of fluid. The opportunity of the full elimination of the mentioned expenses by the application of nature friendly biodegradable water-base fluids of HFC class has been considered. The use of such class hydraulic fluids facilitates the design of submersible hydraulic drive by the elimination of sealing devices. There is a certain practicability to develop methodological recommendations for submersible ecological safe hydraulic drive with the consumption of HFC class hydraulic fluids considering the actual condition of hydraulic drive elements base.
submersible hydraulic drive, hydraulic fluid, emergency releases, high-pressure hose, ecological damage, biodegradable fluid
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