Anticorrosive agents<\/h2><\/span><\/div><\/div><\/div>An anticorrosive agent temporarily or constantly protects materials from corrosive attack. In the case of surfaces which are in constant contact with a corrosive medium, especially water (e.g. in a cooling or heating circuit), the use of anticorrosive agents is often inevitable.<\/p>\n<\/div>
Antifreeze protection<\/h2><\/span><\/div><\/div><\/div>The term antifreeze protection comprises all measures and methods which are to prevent the freezing of liquids such as water. This is necessary because the volume of ice becomes larger than the volume of the liquid water and thus the required space, which is increased by a few per cent, can create large forces (frost bursting).<\/p>\n<\/div>
Antifreezing agents<\/h2><\/span><\/div><\/div><\/div>An antifreezing agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water).<\/p>\n<\/div>
Boiling point<\/h2><\/span><\/div><\/div><\/div>The boiling point is the temperature at which a liquid compound or product becomes gaseous.<\/p>\n<\/div>
Cooling brine<\/h2><\/span><\/div><\/div><\/div>The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div>![](\"https:\/\/www.glysofor.de\/wp-content\/uploads\/images\/diagramm-frostsicher-glysofor-n_en.gif\")
<\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div>![](\"https:\/\/www.glysofor.de\/wp-content\/uploads\/images\/diagramm-reldruckverl-glysofor-n_en.gif\")
<\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div>![](\"https:\/\/www.glysofor.de\/wp-content\/uploads\/images\/diagramm-kinvisko-glysofor-n_en.gif\")
<\/a>
An anticorrosive agent temporarily or constantly protects materials from corrosive attack. In the case of surfaces which are in constant contact with a corrosive medium, especially water (e.g. in a cooling or heating circuit), the use of anticorrosive agents is often inevitable.<\/p>\n<\/div>
Antifreeze protection<\/h2><\/span><\/div><\/div><\/div>The term antifreeze protection comprises all measures and methods which are to prevent the freezing of liquids such as water. This is necessary because the volume of ice becomes larger than the volume of the liquid water and thus the required space, which is increased by a few per cent, can create large forces (frost bursting).<\/p>\n<\/div>
Antifreezing agents<\/h2><\/span><\/div><\/div><\/div>An antifreezing agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water).<\/p>\n<\/div>
Boiling point<\/h2><\/span><\/div><\/div><\/div>The boiling point is the temperature at which a liquid compound or product becomes gaseous.<\/p>\n<\/div>
Cooling brine<\/h2><\/span><\/div><\/div><\/div>The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
The term antifreeze protection comprises all measures and methods which are to prevent the freezing of liquids such as water. This is necessary because the volume of ice becomes larger than the volume of the liquid water and thus the required space, which is increased by a few per cent, can create large forces (frost bursting).<\/p>\n<\/div>
Antifreezing agents<\/h2><\/span><\/div><\/div><\/div>An antifreezing agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water).<\/p>\n<\/div>
Boiling point<\/h2><\/span><\/div><\/div><\/div>The boiling point is the temperature at which a liquid compound or product becomes gaseous.<\/p>\n<\/div>
Cooling brine<\/h2><\/span><\/div><\/div><\/div>The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
An antifreezing agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water).<\/p>\n<\/div>
Boiling point<\/h2><\/span><\/div><\/div><\/div>The boiling point is the temperature at which a liquid compound or product becomes gaseous.<\/p>\n<\/div>
Cooling brine<\/h2><\/span><\/div><\/div><\/div>The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
The boiling point is the temperature at which a liquid compound or product becomes gaseous.<\/p>\n<\/div>
Cooling brine<\/h2><\/span><\/div><\/div><\/div>The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
The cooling brine is a liquid whose freezing point is below the freezing point of water. Cooling brines are used for the cold transport from a central refrigerating plant to different refrigeration consumers. It is typically used for air conditioners, cold chains or technical refrigerating plants. In the past, saline solutions were often used as cooling brines. This is also where the German name of the brine (“Sole”) comes from. Due to the distinctive corrosive properties of saline solutions, especially with regard to the use in metal systems, modern products today are offered on the basis of glycol, for example.<\/p>\n<\/div>
Ethylene glycol<\/h2><\/span><\/div><\/div><\/div>(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
(Mono)Ethylene glycol (MEG) (trivial name glycol) is the simplest bivalent alcohol with the chemical name ethane- 1,2-diol. It is the simplest diol.<\/p>\n<\/div>
Freezing point<\/h2><\/span><\/div><\/div><\/div>The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
The freezing point is the temperature between the physical conditions “solid” and “liquid”. The best known freezing point is the freezing point of water. On the temperature scale in degree Celsius, it defines the zero point. If a “freezing point” is mentioned without any further information, it normally refers to pure water, meaning 0 \u00b0C. The freezing point defines the conditions of the transformation of a material from the liquid to the solid state, which is called “freezing”. If it is important that a liquid also stays liquid when the temperature is below its freezing point, there are special frost protection agents available which can lower the freezing point, e.g. of water, down to -55 degree Celsius.<\/p>\n<\/div>
Frost protection agents<\/h2><\/span><\/div><\/div><\/div>A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
A frost protection agent is a product (e.g. on the basis of glycol) which lowers the freezing point of another compound (e.g. water). The effect depends on the used product and its concentration. It is often used as additive to cooling systems or solar liquids. Frost protection agents can be bought as concentrates or as premixed solutions. Apart from e.g. glycol, alcohol or glycerine, corrosion inhibitors and stabilisers (which are already included in brand products) are absolutely necessary.<\/p>\n<\/div>
Glycol<\/h2><\/span><\/div><\/div><\/div>Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
Glycols are part of the group of alcohols (alkanols) and are also called bivalent alcohols due to two hydroxyl groups. The simplest bivalent alcohol is ethane diol (ethylene glycol) with the elemental formula C 2 H 6 O 2. Glycols can often be found in frost protection agents, coolers and de-icers because their melting points are -10 to -15\u00b0 and therefore lower than the melting point of water. In connection with water, the melting point is significantly lower and can reach down to -55\u00b0 if the mixture is correct. Glycols are used as solvents or disinfectants e.g. in varnishes and adhesives. Other glycols are e.g. diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol etc.<\/p>\n<\/div>
Glycol\/water mixture<\/h2><\/span><\/div><\/div><\/div>The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\nThe glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>[1] Frost resitance<\/p>\n<\/div>
<\/div><\/div><\/div><\/div>The secret is in the mix<\/strong>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\nAs you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\nFor this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required.
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a>[2] Relative pressure drop factor<\/p>\n<\/div>
<\/div><\/div><\/div><\/a>
The function of the glycols in a glycol\/water mixture is to lower the freezing point. However, not only the freezing point is reduced; glycols have an additional effect when used in water, as illustrated in Figure [1]<\/strong><\/sup> using the example of the monoethylene glycol-based product Glysofor N. The mixture does not freeze at the specified freezing point, rather it initially forms ice slush. At the crystallization point, small, spherical ice particles are produced, which also remain continuously in motion, so that ice slush is not able to cause any metallic components of the system to burst. If the temperature drops below the solidifying point, bursts are possible.<\/p>\n The glycols used are primarily ethylene glycol and propylene glycol. Ethylene glycol exhibits the best physical properties when used as antifreeze in heat transfer media. When using glycol in cooling systems in the food processing industry or if the cooling medium could come into contact with drinking water, on the other hand, only propylene glycol (1,2-Propanediol), which is approved in the EU as a food additive, may be used.<\/p>\n<\/div> [1] Frost resitance<\/p>\n<\/div> The secret is in the mix<\/strong> As you can see in the following illustrations using the example of the monoethylene glycol-based product Glysofor N, as the proportion of glycol increases so does the relative pressure drop [2]<\/strong><\/sup> and the kinematic viscosity [3]<\/strong><\/sup>. A pump must compensate for these drops with a greater delivery height. The higher density of the glycols compared to pure water has an effect on the drive performance of the motor, and consequently on energy consumption. The lower specific heat capacity [4]<\/strong><\/sup> (thermal absorption capacity) of the glycol results in reduced performance from the system.<\/p>\n For this reason, usage conditions should be checked in advance in order to determine the level of frost resistance required. [2] Relative pressure drop factor<\/p>\n<\/div><\/a>
\nRefrigeration or heating systems should not be filled with pure glycols or antifreeze concentrates. For example, the freezing point of pure ethylene glycol is only -13 \u00b0C. In the ideal mixing ratio with water, on the other hand, a reduction of the freezing point to under -50 \u00b0C can be achieved.<\/p>\n
\nFollow this rule: As much as necessary and as little as possible!<\/strong><\/p>\n<\/div><\/a><\/a>