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    • Why filter
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    • Why filter
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    • Viscosity
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    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

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    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

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    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

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  • Industries

    Industries

    Find HiFlux filter solutions that fit your needs perfectly. Select one of the following industries to find a filter fit for your production

    Talk to an advisor
    List of Industries
    • Beverage
    • Chemicals and Polymers
    • Dairy
    • Fat and Oil
    • Food
    • Paint and Coatings
    • Pharmaceuticals
    • Recycling
    • Water processing
    • Beverage
    • Chemicals and Polymers
    • Dairy
    • Fat and Oil
    • Food
    • Paint and Coatings
    • Pharmaceuticals
    • Recycling
    • Water processing
  • Solutions

    Solutions

    View our products, we have seperated them into categories so you can find what you’re looking for. You can also find filters made for your production in the Industries tab.

    Talk to an advisor
    Filter solutions
    • Self-cleaning Filters
    • Bag Filters and Magnetic Filters
    • Cartridge Filters
    • Strainer Filters
    • Coarse Filters
  • The challenge

    The challenge

    Find HiFlux filter solutions that fit your needs perfectly. Select one of the following industries to find a filter fit for your production

    Talk to an advisor
    Let us help
    • Why filter
    • What is a selfcleaning filter
    • Viscosity
    • Quality
    • 10 helpful tips for choosing a filter
    • Flow calculation
    • Filter size guide
    • Why filter
    • What is a selfcleaning filter
    • Viscosity
    • Quality
    • 10 helpful tips for choosing a filter
    • Flow calculation
    • Filter size guide
  • What we do

    What we do

    Find HiFlux filter solutions that fit your needs perfectly. Select one of the following industries to find a filter fit for your production

    Talk to an advisor
    HiFlux Filtration
    • Filter solutions
    • Applications
    • Animation videos
    • Service of the Autoline filter
    • Engineering department
    • Filter solutions
    • Applications
    • Animation videos
    • Service of the Autoline filter
    • Engineering department
  • Who we are

    About us

    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

    Talk to an advisor
    Find what you are looking for
    • About HiFlux
    • Sustainability
    • Sales & delivery terms
    • GDPR
    • About HiFlux
    • Sustainability
    • Sales & delivery terms
    • GDPR
  • Partners
  • News

    News

    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

    Talk to an advisor
    Select category
    • Articles
    • Cases
    • Trade fairs
    • Sign up to newsletter
    • Articles
    • Cases
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  • Contact

    Contact us

    HiFlux Filtration A/S is a Danish company, specializing for more than 60 years in filtration solutions of liquids for the processing industry and the energy sector.

    Talk to an advisor
    Contact options
    • Contact us
    • Filter inquiry form
    • Filter inquiry form (Partners)
    • Employees
    • Partner network
    • Contact us
    • Filter inquiry form
    • Filter inquiry form (Partners)
    • Employees
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Viscosity

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Viscosity is like the “thickness” or “stickiness” of a liquid, determining how easily it flows. Imagine pouring honey and water; honey flows much slower because it has a higher viscosity compared to water. This concept applies to all liquids and gases, affecting how they move through pipes, over surfaces, or when being stirred.

In more technical terms, viscosity measures a fluid’s resistance to deformation at a given rate, such as when it’s flowing or being stirred. For fluids like water or air (known as Newtonian fluids), viscosity is constant and doesn’t change with the speed of flow or how forcefully they’re stirred. However, for non-Newtonian fluids, like ketchup or slime, their viscosity can change when they’re squeezed, stirred, or shaken – they can become thinner (less viscous) or thicker (more viscous) under stress.

What is viscosity?

Viscosity is like a liquid’s thickness. Imagine how water pours easily and quickly out of a bottle – it has low viscosity. Now think of pouring syrup or honey; they are slow and thick – they have high viscosity. So, viscosity is simply how fast or slow a liquid flows. The thicker the liquid, the higher its viscosity. Temperature can also affect how thick or thin a liquid is – like how warm syrup pours more easily than cold syrup.

Sampels of viscosity

These values represent the viscosity of the materials listed, providing a comparison from very fluid substances like water to very thick materials like window putty

1. Water: 1-5 cps
2. Blood: 10 cps
3. Corn Syrup: 50-100 cps
4. Maple Syrup: 150-200 cps
5. Castor Oil: 250-500 cps
6. Honey: 2,000-3,000 cps
7. Molasses: 5,000-10,000 cps
8. Chocolate Syrup: 10,000-25,000 cps
9. Ketchup: 50,000-70,000 cps
10. Peanut Butter: 150,000-200,000 cps
11. Crisco/Lard: 1,000,000-2,000,000 cps
12. Silicone Sealant: 5,000,000-10,000,000 cps
13. Window Putty: 100,000,000 cps

Each fluid’s viscosity measurement is dependent on factors like temperature and the specific composition of the fluid. These examples span a range of common household and industrial liquids to give a sense of how viscosity varies across different materials.


Viscosity behaviour for Newtonian, Tixotropic and Dilatant

Viscosity behavior describes how the thickness of a fluid (its viscosity) changes under different conditions. Here’s an explanation of the behavior for Newtonian, Thixotropic, and Dilatant fluids:

1. Newtonian Fluids:
– These fluids have a constant viscosity, regardless of the force applied to them or the rate at which they are stirred or moved.
– A common example is water. Whether you stir it slowly or quickly, it feels just as ‘thick’ or ‘thin’ – it doesn’t change its resistance to flow.

2. Thixotropic Fluids:
– Thixotropic fluids become less viscous, or thinner, over time when a constant force is applied.
– Imagine a jar of honey or ketchup. When you first try to pour it, it moves slowly. But as you shake or stir it, it flows more easily. Once you stop stirring, over time, it will thicken up again.

3. Dilatant Fluids:
– Dilatant fluids are the opposite of thixotropic. They become more viscous, or thicker, when a force is applied.
– Think of a mixture of cornstarch and water. When you press on it or move your hand through it quickly, it feels solid. But if you move slowly, it feels liquid. The faster the force, the thicker it becomes.

These behaviors are important in industrial processes where the flow of materials is critical, such as in mixing, pumping, or during chemical reactions. Understanding and controlling viscosity behavior ensures that processes run smoothly and efficiently.

What does high viscosity mean?

High viscosity means that a fluid is thick and flows slowly. A high-viscosity fluid, like honey or molasses, resists motion due to internal friction – its molecules don’t move past each other easily. This is in contrast to low-viscosity fluids, like water or alcohol, which are thin and flow quickly. High-viscosity substances require more force to pour, spread, or stir compared to low-viscosity substances.

What does density mean?

Density is a measure of how much mass is contained in a given volume. It is often expressed in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³). You can think of density as how tightly packed or how heavy something is for its size. For example, a rock is denser than a piece of cork; even if they’re the same size, the rock will be heavier because it has more mass packed into the same amount of space. Density is an important concept in physics and engineering because it affects how substances interact with each other, including whether they will float or sink when placed in a fluid.

How does the temperature change viscosity?

Temperature has a significant impact on the viscosity of liquids and gases:

  1. For Liquids: As temperature increases, the viscosity of a liquid typically decreases. This occurs because the increased thermal energy allows the molecules to move more freely, reducing the internal friction that resists flow. In other words, heat makes the liquid’s molecules more energetic and less sticky to each other, making the liquid thinner and flow more easily. For example, heating honey or oil makes it runnier than when it is cold.
  2. For Gases: Unlike liquids, the viscosity of gases increases with temperature. As the temperature rises, gas molecules move faster and collide more often, which leads to an increase in the transfer of momentum across the gas. This increased activity and interaction between the molecules cause the viscosity to go up.

 

These changes in viscosity in response to temperature variations are important to consider in applications such as lubrication, chemical processing, and in the design of equipment where fluids are used or processed.

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Company info

  • HIFLUX FILTRATION A/S
  • Lundagervej 25a DK-8722 Hedensted Danmark
  • Tel +45 76 74 16 60
  • info@hiflux.dk
  • VAT no. dk 13 45 74 76

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