Glossary, Page 13

heavy metals

Heavy metals are metallic elements with increased density and weight that occur naturally in the earth. Some of them are essential for the normal functioning of organisms in very small amounts, such as iron, zinc, copper, manganese and others.…

HEPA filter

A HEPA filter is a type of air filter. Its name is an acronym from the English high efficiency particulate arrestance, i.e. a highly efficient filter of air particles. This type of air filter is able to remove particles with a size of 300 nanometers…

HEPWORTH

The HEPWORTH heating system is a flexible, comprehensive and, above all, demountable installation system for floor heating, radiator heating and water distribution. Among the biggest advantages of the system are its quick assembly without tools,…

herz

  HERZ, spol. Ltd. was founded already in 1994 by the parent company HERZ Armaturen, Ges.m.b.H. based in Vienna. The mission of our company is the creation of complex solutions for the technical equipment of buildings, through technical…

HEWALEX

  HEWALEX has more than 30 years of experience. What sets us apart is innovative production technology and care for the highest quality and efficiency of the products in our offer. We are constantly improving our products to meet the high…

hmax

The abbreviation "hmax" is most often used to denote the maximum lift/discharge head (or maximum pumping head) of the pump. In the context of pumps, this value indicates the maximum height to which the pump can pump liquid from a reservoir or other…

HNBR

The abbreviation HNBR stands for "Hydrogenated Nitrile Butadiene Rubber" in English, which in Slovak is "Hydrogenated nitrile-butadiene rubber". HNBR is a special type of synthetic rubber with increased resistance to heat, oil, ozone and…

Honeywell

  Honeywell has a rich history that began in 1885. Founded by Mark C. Honeywell, it originally focused on manufacturing thermostatic equipment. It gradually grew and expanded its portfolio of products and services. During the 20th century,…

HPC

HPC (High Performance Computing) is an acronym for High Performance Computing, and refers to the use of powerful computers and clusters of computers to solve complex problems that would be difficult or impossible for ordinary computers to process in…

humidity

Air humidity is the water content in the air (atmosphere). The amount of moisture the air can absorb depends on its temperature.   Air humidity in physics and technologyAir that does not contain any water vapor is called dry air, air…

hydraulics

Hydraulics or hydraulic drive is a drive system based on pressure energy and the physical incompressibility of a liquid. In the ratio of the size of the components to the transmitted power, it is among the most powerful and most accurate. Among…

hydrocarbon

A hydrocarbon is an organic compound composed of only carbon and hydrogen.  DivisionTraditionally, hydrocarbons are divided into groups according to the type of bonds between atoms or whether their basic carbon chain is open (acyclic) or…

hydrogen sulfide

Hydrogen sulfide (chemical symbol H2S) is a chemical compound formed by two hydrogen atoms bonded together. It is a gaseous element that has many important uses and can also have some disadvantages depending on the context. Types of hydrogen…

hydropower

Hydropower is a type of renewable energy that uses the movement of water, such as rivers, lakes, dams, and oceans, to produce electricity or other forms of energy. This form of energy has a long history of use and provides several advantages in the…

hygrostat

A hygrostat is a device that switches or regulates appliances depending on humidity. According to the set humidity value, the device turns on or off the controlled output. Hygrometers (that is, hygrometers or more rarely hygrometers) are used to…

hysteresis

Hysteresis, or more recently hysteresis, can be:generally:dependence of some system (also) on its states in the past, see hysteresis (property)the phenomenon that the effect lags behind the causein electrical engineering: magnetic hysteresis for…

Charge (physical quantity)

Charge is a physical quantity that describes the property of particles that have an electric charge. It is the basic unit of electric charge. Charge is measured in units called coulombs (C) and is represented by the symbol "Q". Charge represents the…

chimney

Chimney is a vertical building (or construction) used to discharge flue gases, steam and smoke into the air.  The chimney is mostly used to remove flue gases from buildings. Stoves, furnaces, fireplaces or boilers are connected to it, where…

chimney

A heating flue is a system of pipes and components that serves to remove flue gases from a heating device (for example, a gas boiler, furnace or fireplace) to the outside environment. Its main task is to remove smoke and combustion products outside…

Chimney draft

Chimney draft is the force that causes air or combustion products to move through the chimney system. This draft arises as a result of the pressure difference between the inside and outside of the chimney. Air is heated in a combustion device…

chlorine

Chlorine is a chemical element with the symbol Cl and proton number 17. It is a halogen, thus belonging to the same group of elements as fluorine, bromine, iodine and acetatom. Chlorine is one of the most common elements inside the Earth and occurs…

chromium

Chromium (lat. Chromium) is a chemical element in the Periodic Table of Elements that has the symbol Cr and proton number 24.   HistoryIn 1761, Johann Gottlob Lehmann discovered orange-red Lead Chromate (PbCrO4) in the Urals, which he called…

IBO

IBO OHI pumps Since the company was founded in 1999, Dambat has focused on the field of pumping technologies. We manufacture pumps and hydrophores; in addition, we complete, import, export and distribute pumps from leading manufacturers from all…

IEC

An IEC socket is a standardized type of electrical socket used for connecting electrical devices to the mains. These sockets have a specific design and are often used in professional and industrial applications. IEC stands for "International…

IEEE 802.15.4

IEEE 802.15.4 is a short-range wireless communication standard developed by the Institute of Electrical and Electronics Engineers (IEEE). This standard focuses on wireless communication for low-power, small-volume, short-range devices. IEEE 802.15.4…