GOST 21.206-2012

Group Zh01

INTERSTATE STANDARD

System of design documents for construction

SYMBOLS OF PIPELINES

System of design documents for construction. Symbols for presentation of pipelines

ISS 01.100.30

Date of introduction 2013-11-01

Preface

The goals, basic principles and basic procedure for work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards. Rules and recommendations for interstate standardization. Rules for development, adoption, application , updates and cancellations"

Standard information

1 DEVELOPED by the Non-Profit Partnership "Engineers for Heating, Ventilation, Air Conditioning, Heat Supply and Building Thermal Physics" (NP ABOK), Open Joint-Stock Company "Center for Methodology of Standardization and Standardization in Construction" (OJSC "CNS")) and Open Joint-Stock Company "Proektny" , design and research institute "SantehNIIproekt" (JSC "SantehNIIproekt")

2 INTRODUCED by the Technical Committee for Standardization TC 465 "Construction"

3 ADOPTED by the Interstate Scientific and Technical Commission on Standardization, Technical Regulation and Conformity Assessment in Construction (Minutes dated December 18, 2012 N 41)

The following voted for adoption:

4 ENTERED INTO EFFECT by Order of the Federal Agency for Technical Regulation and Metrology dated December 27, 2012 N 2015-st as a national standard Russian Federation from November 1, 2013

5 INSTEAD GOST 21.206-93


Information about changes to this standard is published in the annual information index "National Standards", and the text of changes and amendments is published in the monthly information index "National Standards". In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly information index "National Standards". Relevant information, notices and texts are also posted in information system for general use - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet

1 area of ​​use

1 area of ​​use

This standard establishes general symbols and simplified graphic representations of pipelines and their elements in drawings and diagrams of technological and thermal-mechanical solutions, systems and networks of engineering support (water supply, sewerage, heating, ventilation, air conditioning, gas supply) and other systems and networks when designing enterprises, buildings and structures for various purposes.

2 Normative references

This standard uses normative references to the following interstate standards:

GOST 2.303-68 one system design documentation. Lines

GOST 21.205-93 System of design documentation for construction. Symbols for elements of sanitary systems

Note - When using this standard, it is advisable to check the validity of the reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or using the annual information index "National Standards", which was published as of January 1 of the current year, and on issues of the monthly information index "National Standards" for the current year. If the reference standard is replaced (changed), then when using this standard you should be guided by the replacing (changed) standard. If the reference standard is canceled without replacement, then the provision in which a reference is made to it is applied in the part that does not affect this reference.

3 General provisions

3.1 The pipeline symbol must consist of a graphic symbol or a simplified image of the pipeline and an alphanumeric or digital designation characterizing the type engineering system(network) or transported medium, the purpose of the pipeline and its parameters.

3.2 Graphic symbols and simplified images of pipelines and their elements are given in Table 1.


Table 1

3.3 In the alphanumeric designation, the letter or first digit indicates the type of engineering system (network) or transported medium, the subsequent digits indicate the purpose and/or parameters of the transported medium.

Alphanumeric designations of pipelines of certain types of engineering and technical support systems (networks) are accepted in accordance with GOST 21.205.

3.4 On the diagrams, pipelines are depicted with conventional graphic symbols (one line).

3.5 In the drawings, pipelines and their elements are depicted with conventional graphic symbols and/or simplified images.

Pipelines in the drawings are depicted in a simplified manner in two lines if their diameters on the appropriate scale are 2 mm or more.

It is allowed to depict a pipeline with two lines without drawing a center line or to draw a center line on a short section of the pipeline.

3.6 In electronic (3D) models, pipelines of any diameter are depicted by two lines.

3.7 Visible sections of the designed pipelines are depicted with a solid thick main line in accordance with GOST 2.303, invisible sections (for example, in blocked channels) - with a dashed line of the same thickness. It is allowed to use other types of lines in accordance with the requirements of the relevant standards of the design documentation system for construction.

Visible and invisible sections of existing pipelines are depicted, respectively, by a solid thin line or a dashed thin line.

3.8 When depicting a pipeline on a drawing (diagram) in one line, alphanumeric or digital designations are indicated in one of the following ways:

- on the shelves of leader lines - in accordance with Figure 1a);

- above the pipeline line - in accordance with Figure 1b);

- in breaks in pipeline lines - in accordance with Figure 1c).

Picture 1

3.9 With simplified graphic representations of the pipeline (two lines), alphanumeric or numeric designations are indicated on the shelves of leader lines [see. Figure 2a)] or directly above the pipeline graphic [see. Figure 2b)].

Figure 2

3.10 The number of alphanumeric or digital designations placed on pipeline lines should be minimal, but ensure understanding of the drawing (diagram).

3.11 The dimensions of pipeline diameters with their conventional graphic designations and simplified graphic images are indicated in mm without a unit of measurement designation and are marked on the shelves of leader lines or directly above the graphic image of the pipeline in the following form:

- when indicating the nominal diameter of the pipeline, the sign “” or symbol"DN" in accordance with Figures 3a), 3b);

- when indicating the outer diameter and wall thickness of the pipeline, the sign “” is given before the size number in accordance with Figures 3c), 3d);

- when indicating the nominal diameter of pipeline elements, the symbol “DN” is given before the size number.

Figure 3

Electronic document text
prepared by Kodeks JSC and verified against:
official publication
M.: Standartinform, 2014

INTERSTATE STANDARD

UNIFIED SYSTEM OF DESIGN DOCUMENTATION

CONDITIONAL GRAPHIC NOTATIONS.

PIPELINE ELEMENTS

GOST 2.784-96

INTERSTATE COUNCIL FOR STANDARDIZATION,
METROLOGY AND CERTIFICATION

Minsk

PREFACE.

1. DEVELOPED by the Research and Design Institute of Industrial Hydraulic Drives and Hydraulic Automatics (NIIGidroprivod), the All-Russian Research Institute of Standardization and Certification in Mechanical Engineering (VNIINMASH).

INTRODUCED by Gosstandart of Russia.

2. ADOPTED by the Interstate Council for Standardization, Metrology and Certification (Minutes No. 10 of October 4, 1996).

3. This standard conforms to ISO 1219-91 “Hydraulic drive, pneumatic drive and devices. Conventional graphic symbols and diagrams. Part 1. Graphic symbols" regarding pipeline elements.

4. By Decree of the State Committee of the Russian Federation for Standardization, Metrology and Certification dated April 7, 1997 No. 124, the interstate standard GOST 2.784-96 was put into effect directly as the state standard of the Russian Federation on January 1, 1998.

5. INSTEAD GOST 2.784-70.

GOST 2.784-96

INTERSTATE STANDARD

Date of introduction 1998-01-01

1 AREA OF USE.

This standard establishes conventional graphic symbols for pipeline elements in diagrams and drawings of all industries.

2. REGULATORY REFERENCES.

GOST 17752-81 Volumetric hydraulic drive and pneumatic drive. Terms and Definitions.

GOST 20765-87 Lubrication systems. Terms and Definitions.

GOST 24856-81 Industrial pipeline fittings. Terms and Definitions.

3. DEFINITIONS.

In this standard, terms according to GOST 17752, GOST 20765, GOST 24856 are used.

4. BASIC PROVISIONS.

4.1. The designations reflect the purpose (action), method of operation of the devices and external connections.

4.2. The symbols do not indicate the actual design of the device.

4.3. The standard does not establish the dimensions of symbols.

4.4. Conventional graphic symbols of pipeline elements are given in Table 1.

Table 1

GOST 2.411-72 as amended. 2002 establishes rules for the execution of drawings of pipes (parts and assembly units), pipelines and pipeline systems for all industries.

The standard does not apply to drawings of energy, heat engineering, sanitary and similar communications that are not included in the design documentation of the product.

1. On the drawing of the pipe, with the same cutting of its ends, the corresponding dimensions and surface roughness designations are applied only at one end of the pipe (Fig. 2).

2. On the drawing of a serially produced pipe, it is allowed not to include dimensions that determine the configuration of the pipe; The product documentation provides instructions on the manufacture of a pipe according to a sample or template, and the sample or template is attached to the set of documentation transferred to production.

3. The pipe size is determined from the pipe axis or from the external or internal surfaces (Fig. 3, a, b, c).

4. On assembly and installation drawings the following is allowed:

a) depict a pipe (pipeline) conventionally with one line of thickness 2s...3s (Fig. 4);

b) when depicting a pipe (pipeline), use the symbol according to GOST 2.784-96 and GOST 2.785-70 and depict a pipe with a rupture, as shown in Fig. 4;

c) depict a pipe (pipeline) with two lines without an axial line or apply an axial line in a short section of the pipe image;

d) depict several pipelines running side by side with one line if their relative position is indifferent.

The rules specified in this paragraph do not apply to sections, sections and remote elements depicting pipes and pipelines.

5. Two intersecting pipes (pipelines), each of which is depicted conventionally (or groups of pipelines depicted by one line), are depicted in the drawing in accordance with the requirements of GOST 2.784-96, and the pipeline passing from above should be depicted with an “arc” (Fig. 5).

6. For a more rational use of the drawing field, it is allowed to conditionally shift individual sections of the image of pipes (pipelines), connecting them with a thin wavy line, as shown in Fig. 6.

7. The line representing the pipe (pipeline) and transitioning from one type (or sheet) to another is cut off (preferably outside the outline of the product). The break is indicated by a Roman numeral and the designation of the type (sheet) on which the continuation of the pipe (pipeline) is shown (see Fig. 5).

Rice.2

Rice.3

Rice.4

Rice. 5

8. On the assembly drawing of a single or auxiliary production, in the specification of which pipes are recorded as a material, it is allowed that the seams of welded joints in the joints of pipes of the same diameter in the image are not marked with leader lines or designated, and all welding instructions are given on the remote element (see. Fig. 4) or in technical requirements drawing in accordance with GOST 2.312-72, harm. 1991

9. It is allowed to put on the drawings the numbers assigned to them in the diagrams next to the images of pipes (pipelines).

10. If necessary, place a table of connections on the drawing of the pipeline (pipeline system), which indicates the addresses of connections, position numbers and (or) numbers of pipes (pipelines). The connection table is placed on the first sheet of the drawing or performed on its subsequent sheets. The form of the table is not regulated by this standard.

If pipes are included in the specification as a material, then the table can indicate the length, nominal diameter, name of the material, etc.

11. It is allowed to place on the drawing field schematic diagram or a pipeline (pipeline system) connection diagram, if it is not prepared as a separate document.

12. In cases where the components of the pipeline system are located on “walls” located in different planes, it is allowed to depict the “walls” deployed in the plane of the drawing, and the inscription “Wall is deployed” is placed at the corresponding place in the image.

13. On the drawing of the pipeline (pipeline system) on the images of the components or on the shelves of the leader lines, it is allowed to put explanatory inscriptions, for example: “Drain”, “Blowdown”, “Into the tank”, etc. (see Fig. 5) .

14. The drawing of the product, in which the pipeline system (systems) is included as an integral part, is made in one of the following options:

A – for the manufacture of a product, the assembly of which is advisable to carry out according to the same drawing, an assembly drawing is produced in accordance with the requirements of GOST 2.109-73 as amended. 2001 and this standard;

B – for the manufacture of a product, the assembly of which is advisable to carry out according to the same drawing, the components that are not directly included in the pipeline system draw up their own design documentation, while the components are included in the product in the form of an independent assembly unit, shown on the assembly drawing products in a continuous thin line along the contour;

B – for the manufacture of products for individual and auxiliary production, it is allowed to produce an assembly drawing in which the components of the pipeline system (or some of them) are not depicted, but are recorded in the product specification on a general basis. The technical requirements of the drawing include a link to a schematic diagram or connection diagram of the type: “Installation of a pipeline system according to ХХХ.ХХХХХХ.ХХХПЗ”.

15. If necessary, it is allowed to issue an installation drawing according to the rules of GOST 2.109-73 as amended. 2001 taking into account the provisions of this standard.

Pipeline elements.
Conventional graphic symbols

GOST
2.784-96 establishes conventional graphic symbols for pipeline elements
in diagrams and drawings of all industries.

Rice. 6

1.
The designations reflect the purpose (action), method of operation of the devices and external
connections.

2.
The symbols do not indicate the actual design of the device.

3. Dimensions
The standard does not establish symbols.

4. Conditional
graphic designations of pipeline elements are given in table. 21.

21. Symbols of graphic elements
pipelines (according to GOST 2.784-96 as amended in 2002)