Glossary, Page 7

Decibel

Decibel (dB) definitionDecibel (symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of sound waves and electronic signals. A logarithmic scale can describe very large or very small numbers with…

Degree of efficiency

The degree of efficiency of heating boilers and systems is a measure that expresses how well a given boiler or system uses the available energy for heating and water heating. It expresses the ratio between the input energy (fuel or electrical energy)…

dehumidifier

A dehumidifier is a device that is used to remove excess moisture from indoor environments such as rooms, bathrooms or warehouses. These devices are important for maintaining adequate indoor humidity levels, as excessive humidity can cause a…

Demineralization

Demineralization is the process of removing mineral salts and impurities from water, which leads to obtaining high purity water. This process is often performed in laboratories, industrial facilities, manufacturing processes and other…

Demineralization rinsing

Demineralization rinsing is a procedure used to remove minerals and mineral compounds from various systems and equipment, especially in the field of technical and industrial applications. The goal of the demineralization rinse is to ensure the…

DEVI

DEVI is an international company of Swedish origin, which is specialized in heating solutions and systems for interiors and exteriors. The DEVI company is known for its technological innovations and quality products that help maintain the…

DEVIflex

The world leader in electric floor heating, DEVI presents a new generation of cables for interior floor heating installations. The new cables meet the requirements of the latest regulations and are covered by a 20-year warranty - DEVIwarranty.New…

DEVIreg

DEVIreg is a brand of thermostatic controllers that are designed to control electric heating systems, especially floor heating. These controllers allow users to precisely set and control the temperature in rooms or on the floor where an…

DEVIsafe

The new DEVIsafe cables complement the existing DTCE range of outdoor cables.We developed DEVIsafe in collaboration with installers to ensure that their most important requirements were met. The fact that the new cables can be installed down to…

DHCP

DHCP stands for "Dynamic Host Configuration Protocol" or in Slovak "Protocol for dynamic host configuration". It is a network protocol used to automatically assign configuration information to devices that connect to a network. This information…

diagram

graphic representation of numerical data and relationships using geometric shapes (links of points, columns, circular sections), or images or records on a map basis, see diagram (illustration)in botany: abbreviated to floral diagramin chess: a…

dielectric fitting

A dielectric fitting is a component used in piping systems to separate different material types to minimize the electrochemical reaction between them. These fittings are usually made of a dielectric material, which means they cannot conduct…

Differential pressure

Differential pressure is the difference between two pressure values at different points or times. It is the pressure difference that exists between two points in space or between two sides of an obstacle such as a wall or filter. In practice,…

Digital Floating Code

Digital Floating Code (English Digital Floating Code) is a technology used in some security systems, especially in security systems for opening doors, gates or garage doors. This technology is often used with remote controls (so-called remote…

diode

A diode is an electronic component that allows electric current to flow in only one direction. It is a semiconductor device that contains two electrode terminals - an anode and a cathode. The diode works based on the p-n junction effect…

Direct fire

Direct fire is a type of heating element that is used to heat rooms. It belongs to electric heating systems. Direct heaters are usually installed on the wall, under the window or on the ceiling of the room and are used for additional heating or…

Dispersants

Dispersants are chemical substances that are used to disperse impurities, solid particles or oils in water environments. Their main function is to ensure that these impurities do not aggregate into larger particles, but remain evenly dispersed…

dispersing agent

A dispersant is a form of surfactant. However, not all surfactants are dispersants. A surfactant can act as a detergent, wetting agent, emulsifier, foaming agent in addition to acting as a dispersing agent. Usually both are organic…

displacement

The physical quantity "displacement" is a basic mechanical quantity that expresses the distance or movement of a body from one place to another. It is usually denoted by the letter "s" and the unit in the SI system is the meter (m). The…

Display

Display or display can be: a part of a device that displays graphic or alphanumeric characters or groups thereofthe entire display device at the output of the computer.

Distillation

Distillation is a chemical process of separating different substances based on their different vaporization temperatures. This process is based on the principle that different substances have different vapor point temperatures. After heating a…

Distilled water

Distilled water is water that has undergone a distillation process, which is a method of separating water from impurities and minerals. The distillation process involves heating water to its vapor point, then condensing the steam back to water…

Dolomite

Dolomite is a type of rock and mineral that is composed primarily of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3). It is a sedimentary rock that is formed by the process of sedimentation and subsequent diagenesis (clumping and…

Domestic waterworks

    Domestic waterworks are often used to supply drinking or utility water to houses - cottages. They provide a connection to the water source, which is most often a bore or a well. The domestic water plant is suitable above all for…

Dowel

Dowel is a non-literary (Czech) name for a building element that is used to fasten a screw to a wall, ceiling or floor, but also to other surfaces. It is sold with different diameters in mm, according to which they are…