Univis HVI is a line of premium performance anti-wear hydraulic oils characterised by their unusually high viscosity indexes. They are engineered
to maintain close viscosity control over wide temperature range applications. Because of their resistance to viscosity change, Univis HVI oils are
recommended for hydraulic systems that are subject to wide temperature variations. Many of these systems are sensitive to changes in viscosity
of the hydraulic oil, since they depend on uniform viscosity for hydraulic accuracy. They exhibit optimum flow characteristics at sub-zero
temperatures and the oils are resistant to shearing and viscosity loss so that system efficiency is maintained and internal pump leakage is
minimised at high operating temperatures and pressures. These high quality hydraulic oils also provide very good anti-wear protection for
high-pressure vane, piston and gear pumps. The Univis HVI oils are designed with excellent oxidation stability reducing deposit formation and
improving pump and valve performance. They were developed in conjunction with the major OEM's to meet the stringent requirements of
severe hydraulic systems using high pressure, high output pumps as well as handling the critical requirements of other hydraulic system
components
Features and Benefits :
- Unusually high viscosity index and excellent viscosity control characteristics improves machine accuracy and reduces torque
- Very low pour points maintains excellent fluidity conditions at low temperatures
- Suitable for use in hydraulic equipment operating in very cold conditions, such as cold stores and mobile equipment operating in very cold
climates
- High performance and smooth hydraulic operations derived from uniform viscosity control, fast air release, very good foam control and good
water separability
- Exceptional rust and corrosion protection reduces the negative effects of moisture on system components
- Effective oxidation stability reduces deposits and improves valve performance
