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Hydraulic <strong>control</strong> fluids<br />
Preventers are activated by the use of special<br />
hydraulic <strong>control</strong> fluid. The fluid must:<br />
not freeze on low temperatures (temperature range from 84 °C to<br />
–46 °C)<br />
lubricate moving parts and avoid wearing out<br />
not cause corrosion<br />
disperse in salt or fresh water and not pollute or<br />
contaminate.<br />
For such purpose it is possible to use:<br />
original manufacturer product<br />
Koomey hydraulic fluid C-50F is mixed with fresh water and<br />
ethylene glycol must be added to the diluted fluid for freeze<br />
protection.
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