What does HVI mean in hydraulic oil?
HVI Oil. High viscosity index hydraulic oils (also referred to as HVI or MV oils) are specially formulated to maintain ideal viscosity over an extreme range of temperatures. Viscosity refers to an oil's thickness at a particular temperature (for more information on lubricant viscosity, check out our post on How to Find the Right Lubricant ).
What is high viscosity index hydraulic oil?
High viscosity index hydraulic oils (also referred to as HVI or MV oils) are specially formulated to maintain ideal viscosity over an extreme range of temperatures. Viscosity refers to an oil's thickness at a particular temperature (for more information on lubricant viscosity, check out our post on How to Find the Right Lubricant ).
What type of oil should I use in my hydraulic system?
Rando HD Premium Oil MV is recommended for hydraulic or circulating oil systems, including marineon-deck machinery, hydraulic actuated loading bins, or hydraulic equipment that require a wider operating temperature as compared to a single viscosity grade oil.
Who makes Chevron Rycon MV oil?
Chevron Rycon MV Oil is or was manufactured by Chevron Lubricants. In this cross reference tool, PSC offers this Chevron Rycon MV Oil and/or equivalent products of the similar quality and performance.
What does MV stand for in hydraulic oil?
The ISO classification for these oils is HM. MV stands for multi-viscosity.
What are the 4 types of hydraulic fluid?
They are available as oil-in-water emulsions, water-in-oil (invert) emulsions and water glycol blends. Water-based fluids can provide suitable lubrication characteristics but need to be monitored closely to avoid problems.
What are the different types of hydraulic oil?
There are three basic types of hydraulic fluid: water-based, petroleum-based, and synthetic. Each type has its own special characteristics that make it ideal for certain applications. In addition, there are some fluids that are preferred for applications that can affect the environment.
What are the three types of hydraulic fluid?
Different Types of Hydraulic FluidsMineral oils – mineral oils are created as a result of refining crude oil and then improving their quality by adding certain substances. ... Fire resistant fluids – there are 4 main types. ... Water / oil emulsions – this is when the predominant substance (around 60%) is the oil.More items...
Which hydraulic oil is thicker 32 or 46?
32 is thinner, No. 46 is medium and No. 68 is thicker. Generally speaking, if the temperature is low in winter, use #32 & #46 hydraulic oil with a lower viscosity, and use #68 hydraulic oil with a higher viscosity in summer.
What happens if you use the wrong hydraulic fluid?
Whether it is changing hydraulic filters too often or using the wrong type of hydraulic fluid, these errors can lead to serious problems such as unnecessary maintenance costs, increased repair costs, system downtime, premature wear of components, and even catastrophic failure.
What is the best grade of hydraulic oil?
The viscosity of a hydraulic fluid is measured in Centistokes (cSt) and usually at temperatures of 40°C or 100°C....Hydraulic oil temperature range.Viscosity IndexClassification35-80°CMedium80-110°CHigh110°C and greaterVery High1 more row
Does it matter what hydraulic fluid you use?
Viscosity is THE single most important factor when selecting a hydraulic fluid. It doesn't matter how good the other properties of the oil are, if the viscosity grade is not correctly matched to the operating temperature range of the hydraulic system, maximum component life will not be achieved.
Is there a difference between hydraulic fluid and hydraulic oil?
In summary, hydraulic oil is a type of hydraulic fluid. However, unlike hydraulic oils, hydraulic fluids are used in automatic transmissions and are an alternative to hydraulic oil when flammability is a potential issue involved in operating environments.
How do I choose hydraulic oil?
Check on viscosity index. In case of extreme temperature changes or harsh operation conditions, hydraulic oils with a high viscosity are the best choice. Choose the adequate contamination control and monitoring properties to secure the lifetime of hydraulic components and fluid.
Can you mix hydraulic oils?
CAN I MIX HYDRAULIC FLUIDS? As far as possible, it is always best to avoid mixing different hydraulic fluids. This is because the technical properties could be spoiled by chemical reactions between different additives.
Is all hydraulic oil the same?
Most hydraulic systems can operate using many different fluids, including multigrade engine oil, automatic transmission fluid and more conventional antiwear (AW) hydraulic oil. Which oil or fluid you choose depends on your equipment and how you plan to use it.
What is the difference between 32 and 46 hydraulic oil?
The main difference between AW32 and AW46 hydraulic fluid is the weight - AW32 is a 10-weight fluid, and AW46 is a 20-weight fluid. AW32 is a good all-season fluid best suited for use in cooler outside temperatures during the fall, winter, and early spring months.
What are the different types of fluids?
Fluids are classified into four types depending on their flow, they are:Steady or unsteady.Compressible or incompressible.Viscous or non-viscous.Rotational or irrotational.
What is the difference between AW 46 and ISO 46 hydraulic oil?
What is the difference between ISO 46 and AW 46 hydraulic oil? ISO (International Organization of Standardization) refers to the oil's viscosity while AW stands for “anti-wear”. Each type of hydraulic equipment requires a different hydraulic oil.
Is all hydraulic fluid the same?
Not all hydraulic fluid is the same. Hydraulic fluid varies just as much as the fluids in your car. Hydraulic fluid can come from conventional oil, but it can also be formulated from synthetic stock. Hydraulic fluid can also be glycol-based, a water/glycol mix, or even nearly 100% water in some applications.
What is high viscosity index oil?
High viscosity index hydraulic oils (also referred to as HVI or MV oils) are specially formulated to maintain ideal viscosity over an extreme range of temperatures. Viscosity refers to an oil's thickness at a particular temperature (for more information on lubricant viscosity, check out our post on How to Find the Right Lubricant ). Industrial lubricants also have a Viscosity Index number--this rating signifies a product's ability to maintain its viscosity over a temperature range. The wider the temperature range, the higher the viscosity index number.
What is the purpose of hydraulics?
The purpose of hydraulic systems is to provide the force which drives movement in industrial machinery and aids in the transfer of power--they lubricate the machine's hydraulic components, provide protection, and ensure this transmission of power takes place .
What does the viscosity index number mean?
Industrial lubricants also have a Viscosity Index number--this rating signifies a product's ability to maintain its viscosity over a temperature range. The wider the temperature range, the higher the viscosity index number. The viscosity index number can be improved two different ways: either at the refining level of crude oil or through additives.
How to improve viscosity index?
The viscosity index number can be improved two different ways: either at the refining level of crude oil or through additives. The more highly refined a base oil is, the less wax (paraffin content) it contains. This is intentional. Paraffinic crude oil naturally contains wax.
Why do VI additives expand?
These VI additives expand their form as temperatures increase, which prevents viscosity thinning. When temperatures decrease, the additives contract so the oil can continue to flow. Again, this gives the oil a better rating.
What is the best oil for extreme temperatures?
Synthetics are the preferred oil for use in extreme temperatures. But you don't have to be working at a factory in the extreme weather conditions of the North Pole to benefit from HVI hydraulic oils.
Does refining oil increase viscosity?
However, with the refining process comes cost. To mitigate these costs, lubricant manufactures may enhance their oils and improve viscosity index performers with the post-refining addition of viscosity index improvers. These VI additives expand their form as temperatures increase, which prevents viscosity thinning. When temperatures decrease, the additives contract so the oil can continue to flow. Again, this gives the oil a better rating.
