Climatic design placement category. Climate modification categories: UHL1, U1, UHL2, U2, UHL3, U3, UHL4, U4

Climatic design refers to the types of climatic design of machines, instruments, equipment and other technical elements and products.

In Russia, climatic design is defined in GOST 15150-69, which sounds like “Machines, instruments and other technical products. Versions for different climatic regions. Categories, operating, storage and transportation conditions regarding the impact of environmental climatic factors.”

Most often, the climatic version is indicated in the name of technical equipment or machines in the last characters, for example, fire arrester OP-50 UHL, or steel valve 30s41nzh Du50 Ru16 U, etc.

As a result, today we can distinguish the following categories of climate control:

Category No. 1 - on outdoors(for outdoor installation);
Category No. 2 - under a canopy or indoors, where fluctuations in parameters such as temperature and humidity differ little from fluctuations in the open air and there is relatively free access to outside air (in tents, trailers, metal rooms without additional thermal insulation) .
Category No. 3 - in enclosed spaces with natural ventilation without artificial regulation of climatic conditions (in brick or concrete, in metal rooms with thermal insulation).
Category No. 4 - in rooms with artificially controlled climatic conditions (heated or cooled and ventilated).
Category No. 5 - in rooms with high humidity (for example, in unheated and unventilated underground rooms).
The combination of climatic design and placement category is called the type of climatic design (for example, UZ, HL1, etc.). Symbols indicating the type of climatic modification are included in the designation of the product type (for example, Valve KDM-50M U1, or ball valve KSHTSF-80 HL1).

Depending on the design for different climatic regions, categories and operating conditions, as well as storage conditions in terms of exposure to external climatic factors, products are labeled in accordance with GOST 1 51 50-69. Marking according to GOST 14254-96 indicates the degree of protection provided by the shells.

Marking U1: products intended for use in temperate climates outdoors (placement category 1).

Marking U2: products for use in temperate climates under a canopy or in rooms with free access of air (location category 2).

UZ marking: products for use in temperate climates in enclosed spaces with natural ventilation (location category 3).

Marking T1.T2.TZ: products for use in both dry and humid tropical climates, placed outdoors, under a canopy, in enclosed spaces with natural ventilation.

Marking UHL1: products for use in temperate and cold climates outdoors (placement category 1).

Marking UHL-4: products for use in temperate and cold climates in rooms with artificially controlled climatic conditions (location category 4).

Marking UT1.5: products for use in both temperate and dry or humid tropical climates, both outdoors (placement category 1) and in rooms with high humidity (placement category 5).

In temperate and cold climates, special requirements are placed on the material of products due to the low operating temperature. Thus, those products that are intended for use in areas of the UHL1 category must be made of materials that are capable of maintaining properties at -70 degrees Celsius.

Marking with the index “ts” means that the product has received a zinc coating through the hot-dip galvanizing procedure. The index “x” marks products with a chemical-resistant coating. Important: products manufactured for use in an area of ​​location category 1 can be used in areas of categories 2, 3 and 4, however, the opposite is not true. Also, products marked UT1.5 can be used to replace products marked U1, U2, U3, T1, T2, T3.

The following types of protective coatings are applied according to the manufacturing technology of products at the factory:

1. Paint and varnish, including chemical-resistant paint and varnish coating
2. Galvanic galvanizing
3. Hot-dip galvanizing by immersion in molten zinc

As a workpiece, the use of thin sheet steel that has been hot-dip galvanized using the Sendzimir method in continuous galvanizing units is widespread.

The degree of protection is indicated by the letters “IP” followed by two numbers. The first digit encodes the degree of protection of the product from the ingress of solid foreign bodies, and the second - the degree of protection from the ingress of water.

GOST 15150-69 applies to all types of machines, instruments and other technical products and establishes the macroclimatic zoning of the globe, designs, categories, operating conditions, storage and transportation of products in terms of the impact of environmental climatic factors

Types of climatic versions, designation

• U - temperate climate (+40/-45 o C);
• HL - cold climate (+40/-60 o C);
• UHL - moderate and cold climate (+40/-60 o C);
• T - tropical climate (+40/+1 o C);
• M - maritime moderate-cold climate (+40/-40 o C);
• O - general climatic version (except for sea) (+50/-60 o C);
• OM - general climatic marine version (+45/-40 o C);
• B - all climatic versions (+50/-60 o C).

Climatic conditions in Central Antarctica are not determined by GOST 15150-69. Several macroclimatic regions can be combined into a group of macroclimatic regions (for example, climate category UHL, T).

Example notation:

This means that a bellows expansion joint with a nominal diameter of 200 mm, a working pressure of 16 bar and a compensating capacity of 160 mm is used in moderately cold climates at temperatures down to minus 60 o C in the open air.

The number after the letters indicates the placement category:

• 1 - open air;
• 2 - the same as 1 only without direct sunlight and without precipitation;
• 3 - indoors without climate control;
• 4 - indoors with ventilation and heating;
• 5 - in rooms with high humidity, without artificial regulation of climatic conditions.

General provisions of GOST 15150-69

1. GOST 15150-69 must be used in the design and manufacture of products in accordance with the climatic modifications reflected in it. In particular, it should be used when drawing up technical specifications for the development or modernization of products, as well as when developing state standards and technical specifications that establish requirements regarding the impact of climatic environmental factors for a group of products, and in the absence of these group documents - for individual types of products . All products must be manufactured in accordance with climatic modifications in accordance with GOST 15150-69
2. Products must maintain their parameters within the limits established by technical specifications, standards or specifications during the service life and shelf life specified in the technical specifications, standards or technical conditions, after and (or) during exposure to climatic factors, the values ​​​​of which are established by this standard, i.e. must comply with climatic modifications in accordance with GOST 15150-69.
3. Products are intended for operation, storage and transportation in the range from the upper to the lower values ​​of these climatic modifications, while in addition to the ranges of climatic factors within which the operation of the products is ensured during operation, one or more narrower ranges of climatic factors can be established, within which provide a narrower range of parameter deviations (for example, higher control or measurement accuracy), i.e. climatic design must correspond to the category according to GOST 15150-69.
4. For specific types or groups of products, the types of influencing climatic factors influencing the climatic design according to GOST and their nominal values ​​are established depending on the operating conditions of the products in the relevant technical specifications, standards and technical conditions. If there are documents that establish for product groups a connection between the values ​​of factors with the specified climatic modifications in accordance with GOST 15150-69, you should be guided by the instructions of these documents
5. It is allowed to operate products in macroclimatic areas other than those for which the products are intended, if climatic factors during operation do not exceed the limits of the nominal values ​​​​established for these products. For example, products of the UHL4 climatic version can be operated in UHL2 conditions during the dry summer period.
6. It is allowed to operate products in conditions where the values ​​of climatic factors go beyond the established nominal values, if deviations in service life are acceptable. In this case, the permissibility of operation, the values ​​of climatic factors for designs, and permissible deviations in service life are agreed upon with the product supplier.
7. In accordance with economic and technical feasibility, it is recommended to manufacture products suitable for use in several regions established by this standard, that is, the climatic category according to GOST 15150-69 should cover several climatic regions.
8. Products can also be designed for use in several macroclimatic regions; in these cases, combinations of various operating or storage conditions with periods of stay in these conditions are established in standards or technical specifications for products; climatic modifications (climatic modification category) must be indicated in the accompanying documents for the product.
9. The macroclimatic region with a temperate climate UHL (climate category UHL) includes areas where the average annual absolute maximum air temperature is equal to or below plus 40°C, and the average annual absolute minimum air temperature is equal to or above minus 45°C.
10. D descends from the macroclimatic region with a temperate climate to identify a macroclimatic subregion with a warm temperate subtype of macroclimate, for which the average of the annual absolute minimum air temperatures is equal to or higher than minus 25 ° C.
11. The macroclimatic region with a cold climate HL (climatic category HL) includes areas in which the average annual absolute minimum air temperature is below minus 45°C. The cold climate region UHL (climate category UHL) is indicated on the map.

By agreement with the customer, it is allowed to supply products designed for a temperate climate U1 to areas within 50 km from the southwestern and southeastern boundaries of the macroclimatic region with a cold climate on the territory of the Russian Federation
Federation.

Products placed on mobile units intended for deliveries to the coastal area of ​​the Okhotsk (north of the mouth of the Uda River) and Bering Seas (with the exception of the Kamchatka Peninsula) must be manufactured in the HL design.

Temperature values ​​according to climatic version

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GOST 15150-69 applies to all types of machines, instruments and other technical products and establishes the macroclimatic zoning of the globe, designs, categories, operating conditions, storage and transportation of products in terms of the impact of environmental climatic factors

Types of climatic versions, designation

• U - moderate climate (+40/-45 °C);
• HL - cold climate (+40/-60 °C);
• UHL - moderate and cold climate (+40/-60 °C);
• T - tropical climate (+40/+1 °C);
• M - maritime moderate-cold climate (+40/-40 °C);
• О - general climatic version (except sea) (+50/-60 оС);
• OM - general climatic marine version (+45/-40 оС);
• B - all climatic versions (+50/-60 оС).

Climatic conditions in Central Antarctica are not determined by GOST 15150-69. Several macroclimatic regions can be combined into a group of macroclimatic regions (for example, climate category UHL, T).

Example notation:

Bellows compensator KSO 200-16-160 UHL 1.

This means that a bellows expansion joint with a nominal diameter of 200 mm, a working pressure of 16 bar and a compensating capacity of 160 mm is used in moderately cold climates at temperatures up to minus 60 ° C in the open air.

The number after the letters indicates the placement category:

• 1 - open air;
• 2 - the same as 1 only without direct sunlight and without precipitation;
• 3 - indoors without climate control;
• 4 - indoors with ventilation and heating;
• 5 - in rooms with high humidity, without artificial regulation of climatic conditions.

General provisions of GOST 15150-69

1. GOST 15150-69 must be used in the design and manufacture of products in accordance with the climatic modifications reflected in it. In particular, it should be used when drawing up technical specifications for the development or modernization of products, as well as when developing state standards and technical specifications that establish requirements regarding the impact of climatic environmental factors for a group of products, and in the absence of these group documents - for individual types of products . All products must be manufactured in accordance with climatic modifications in accordance with GOST 15150-69
2. Products must maintain their parameters within the limits established by technical specifications, standards or technical conditions during the service life and shelf life specified in the technical specifications, standards or technical conditions, after and (or) during exposure to climatic factors, the values ​​​​of which are established hereby standard i.e. must comply with climatic modifications in accordance with GOST 15150-69.
3. Products are intended for operation, storage and transportation in the range from the upper to the lower values ​​of these climatic modifications, while in addition to the ranges of climatic factors within which the operation of the products is ensured during operation, one or more narrower ranges of climatic factors can be established, within which provide a narrower range of parameter deviations (for example, higher control or measurement accuracy), i.e. climatic design must correspond to the category according to GOST 15150-69.
4. For specific types or groups of products, the types of influencing climatic factors influencing the climatic design according to GOST and their nominal values ​​are established depending on the operating conditions of the products in the relevant technical specifications, standards and technical conditions. If there are documents that establish for product groups a connection between the values ​​of factors with the specified climatic modifications in accordance with GOST 15150-69, you should be guided by the instructions of these documents
5. It is allowed to operate products in macroclimatic areas other than those for which the products are intended, if climatic factors during operation do not exceed the limits of the nominal values ​​​​established for these products. For example, products of the UHL4 climatic version can be operated in UHL2 conditions during the dry summer period.
6. It is allowed to operate products in conditions where the values ​​of climatic factors go beyond the established nominal values, if deviations in service life are acceptable. In this case, the permissibility of operation, the values ​​of climatic factors for designs, and permissible deviations in service life are agreed upon with the product supplier.
7. In accordance with economic and technical feasibility, it is recommended to manufacture products suitable for use in several regions established by this standard, that is, the climatic category according to GOST 15150-69 should cover several climatic regions.
8. Products can also be designed for use in several macroclimatic regions; in these cases, combinations of various operating or storage conditions with periods of stay in these conditions are established in standards or technical specifications for products; climatic modifications (climatic modification category) must be indicated in the accompanying documents for the product.
9. The macroclimatic region with a temperate climate UHL (climate category UHL) includes areas where the average annual absolute maximum air temperature is equal to or below plus 40°C, and the average annual absolute minimum air temperature is equal to or above minus 45°C.
10. It is allowed to distinguish from a macroclimatic region with a temperate climate a macroclimatic subregion with a warm moderate subtype of macroclimate, for which the average annual absolute minimum air temperature is equal to or higher than minus 25 °C.
11. The macroclimatic region with a cold climate HL (climatic category HL) includes areas in which the average annual absolute minimum air temperature is below minus 45°C. The cold climate region UHL (climate category UHL) is indicated on the map.

By agreement with the customer, it is allowed to supply products designed for a temperate climate U1 to areas within 50 km from the southwestern and southeastern boundaries of the macroclimatic region with a cold climate on the territory of the Russian Federation
Federation.

Products placed on mobile units intended for deliveries to the coastal area of ​​the Okhotsk (north of the mouth of the Uda River) and Bering Seas (with the exception of the Kamchatka Peninsula) must be manufactured in the HL design.

Temperature values ​​according to climatic version