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solutions are completely oil-free and more environmentally friendly in general. High Water Based Fluids (HWBF) fluids have the same viscosity as water and may only be used between +5°C and +55°C. They have no [...] Fire-resistant fluids based on water with 2 to 5% concentrate intended to give the water a minimum level of protection against corrosion and wear. Depending on the composition of the concentrate, emulsions [...] each case and the respective user is responsible for mixing the concentrate in. "Thickened water" fluids based on HWBF whereby certain polymers ("water thickeners") are molecularly dispersed in water at

following are generally used as hydraulic fluids: Hydraulic fluids based on mineral oil Flame-resistant hydraulic fluids Readily biodegradable hydraulic fluids Hydraulics also encompasses the subdivisions [...] covers the theory of the flow behaviour of liquids. In engineering, it refers to the use of Hydraulic fluids to transfer signals, force and energy. A hydraulic system is a type of transmission system, such

group of fire resistant fluids of class HFD. In Germany chlorinated hydrocarbons are only used in closed hydraulic systems in coal mining due to their PCB content (HFDS fluids group). They cause problems

property of hydraulic fluids , which plays a role in its selection and the usage limits of several devices ( Figure V 27 ). In order to compare the viscosity of different fluids, they must relate to a

metallic surfaces. Therefore, hydraulic fluids must be filtered. Contamination with foreign liquids occurs through the entry of water, mixing with other hydraulic fluids or lubricants. The contamination may

Generic term in fluid technology for hydraulic fluids ( hydraulics ).

Main lines that are used to transport energy using hydraulic fluids.

As hydraulic fluids are in reality not incompressible, but are compressible, in addition to the energy elements above there is the compression energy . To generate the pressure p in a space V o a specific [...] a power of approx. 30 kW is released. The basis is Bernoulli's equation for ideal, incompressible fluids: = static pressure + dynamic pressure + geodetic pressure. This equation yields the related energy

Concerned with the physical characteristics and behaviour of fluids at rest (hydrostatics) and when moving (hydrokinetics)

Additive which delays certain reactions in hydraulic fluids . It is used most commonly to counter processes associated with ageing and corrosion.