The Castrol Hyspin™ HVI range of high viscosity index (VI) oils is based on a carefully selected ashless (zinc free) additive system designed to meet and exceed the most exacting performance standards.
Hyspin HVI oils are intended for severely stressed hydraulic systems requiring a high level of anti-wear performance and fine filtration. In addition, Hyspin HVI exhibits excellent corrosion protection as well as outstanding thermal and oxidative stability. Hyspin HVI has excellent hydrolytic stability and separates rapidly from water contamination. Hyspin HVI contains a shear stable additive system which helps to maintain the viscosity characteristics of the product over a wide temperature range, even during prolonged use, and imparts a very low pour point which enables the product to be used in cold environments. The Hyspin HVI range is fully compatible with elastomer materials commonly used for static and dynamic seals, such as nitrile, silicone and fluorinated (e.g. Viton) polymers.
Hydraulic packages operating over wide temperature ranges and or subjected to cold start conditions and high temperature continuous running where minimal viscosity change due to temperature is required.
Examples include highly stressed hydraulic systems (HPUs) utilised in the oil and gas industry whether it be drilling, production or processing offshore and onshore.
Hyspin HVI is classified as follows:
Hyspin HVI grades meet the requirements of:
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