What does SSU stand for in oil?
What does SSU stand for in oil?
Viscosity—Because an oil’s viscosity changes with temperature, it is always expressed at a reference temperature, usually 100° and 210° F. The most common unit in the United States is the Sabolt Universal Seconds (SUS) or Sabolt Seconds Universal (SSU), which is measured with a Saybolt Viscosimeter.
What is a simple definition of viscosity?
viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighbouring portions relative to one another. Viscosity denotes opposition to flow. The reciprocal of the viscosity is called the fluidity, a measure of the ease of flow. Molasses, for example, has a greater viscosity than water.
What is the difference between viscosity grade and viscosity index?
Viscosity is the most important parameter since the viscosity grade can be the difference between optimal performance and machine breakdown. Viscosity index is a measure of how much the viscosity will change as temperature rises or falls.
What is sus oil?
Saybolt Universal Seconds (SUS), which is the time in seconds for 60 milliliters of oil to flow through a standard orifice at a given temperature. This viscosity system is still in limited use, although it has been generally replaced by the ISO grading system.
What is the SSU of diesel fuel?
Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more.
| Liquid | Temperature | Kinematic Viscosity |
|---|---|---|
| (oF) | Seconds Saybolt Universal (SSU) | |
| Diesel fuel 2D | 100 130 | 32.6-45.5 -39 |
| Diesel fuel 3D | 100 130 | 45.5-65 39-48 |
| Diesel fuel 4D | 100 130 | 140 max 70 max |
What is the symbol for viscosity?
eta η
The symbol for absolute (dynamic) viscosity is mu: µ (although eta η is also sometimes used).
Is centistokes the same as Centipoise?
Centipoise = centistokes x specific gravity where specific gravity is assumed to be 0.8 (except for water). To find the exact cp of your fluid: cp = cSt x (weight per gallon x 0.120).
What are mobile liquids?
Characterized by an extreme degree of fluidity; moving or flowing with great freedom. Mercury is a mobile liquid. Easily moved in feeling, purpose, or direction; excitable; changeable; fickle. Changing in appearance and expression under the influence of the mind.
What is viscosity definition in chemistry?
Viscosity is a measure of a fluid’s resistance to flow. It describes the internal friction of a moving fluid. A fluid with low viscosity flows easily because its molecular makeup results in very little friction when it is in motion.
What is the lowest viscosity?
Water, milk and blood, with viscosities of 1 cP, 3 cP and 10 cP at room temperature, respectively, are low viscosity fluids. The motor oil with the lowest viscosity at room temperature is the SAE 10, with a viscosity between 85 and 140 cP.
What is centistokes viscosity?
centistoke (plural centistokes) (physics) A unit of kinematic viscosity equal to one-hundredth of a stoke.
What is the meaning of SSU?
The meaning of SSU is Subsea Umbilicals and other meanings are located at the bottom which take place within Electrical terminology and SSU has 1 different meaning. All meanings which belong to SSU abbreviation are take part only within Electrical terminology and other meanings are not found.
What is SAE viscosity?
SAE viscosity grades include 0W through 25W in increments of 5W, and 4 through 16 in increments of 4, and 20 through 60 in increments of 10.
