Marking of pipelines of the heating and hot water system. Pipe marking: important values. Marking pipelines "Liquid"
When carrying out construction and installation and other special works a special place is occupied by the laying of main steel pipelines.
All communications are divided into 10 main groups in relation to the substances they transport, and therefore it became necessary to identify and mark linear routes.
Marking in Russia has passed the stage of standardization, requiring the mandatory use of GOSTs. Failure to comply with the rules is prosecuted by law, and also threatens the population with accidents, injuries, disruption of the production cycle, man-made disasters.
Pipelines are marked with the appropriate color, numbers, warning signs, special shields, which allows even an inexperienced specialist to determine the contents and the degree of risk linear systems.
Color marking of pipelines corresponds to GOST 14202-69. According to this rule:
- green color corresponds to group 1, transports water;
- red color corresponds to group 2, transports steam;
- blue color corresponds to group 3, transports air;
- yellow color corresponds to 4-5 groups, transports combustible and non-combustible gases;
- orange color corresponds to group 6, transports acids;
- purple color corresponds to group 7, transports alkalis;
- brown color corresponds to 8-9 groups, transports flammable and non-flammable liquids;
- gray color corresponds to group 0, transports other substances.
Important! Fire protection systems, regardless of the internal component, are always painted signal red. If necessary, they additionally use other means of notation.
Requirements for dyes
The coloring with which the decals are applied must be resistant to chemicals and weather conditions, since the marking of communications is necessary both in the industrial sector and in residential complexes. GOST 14202-69 does not apply to electrically conductive networks.
There are several ways to apply paint to systems.
The continuous painting method is applied if the pipeline is short and consists of a small number of connections.
At in large numbers constituent parts wired networks, long kilometers, and also if the architecture of the building does not imply large areas staining, apply coloring in separate fragments. The rest of the pipeline is tinted to match the color of the walls, ceiling, floor, etc. In the case when communications are located outside buildings and structures, the color should reduce the thermal effect on the pipes.
The size of the coating also depends on the outer diameter of the pipes. In the event that the diameter is large, the color designation is applied in the form of stripes with a height of at least 1/4 of the pipe circumference.
According to GOST, the paint is applied to the most important and critical areas, for example, at the joints and passage of pipes through walls, ceilings, floors, etc., at flanges, at sampling and control points, in the area of \u200b\u200bentrance and exit to the room and from it after 10 -meter sections inside the building and after 30-60 m outside.
Important! On pipelines with high blood pressure connecting flanges are subject to painting, since the linear systems themselves are in protective casings.
Marking communications with various devices
In the event that the contents of communications are particularly aggressive, warning rings are applied to them in one of three colors: red corresponds to flammability, flammability and explosiveness; yellow color - dangers and harmfulness (toxicity, radioactivity, ability to cause different kind burns, etc.); the green color with a white border corresponds to the safety of the internal contents. The width of the rings, the distance between them, the application methods are standardized by GOST 14202-69.
Network marking is possible with the help of stickers. In the event that the sticker contains text, it is made in a clearly distinguishable font, without unnecessary symbols, words, abbreviations, in the maximum accessible syllable. Fonts comply with GOST 10807-78.
Stickers are also made in the form of arrows showing the direction of the flow of the substance inside the pipe. The arrows are also standardized in terms of size. The designation on the arrows is differentiated: “flammable substances”, “explosive and fire hazardous”, “poisonous substances”, “corrosive substances”, “radioactive substances”, “attention - danger!”, “flammable - oxidizer”, “allergic substances ". The color of the arrows, as well as the inscriptions, is applied in black or white, in order to achieve the greatest contrast with respect to the main coating of the pipe.
With a particularly dangerous communication component, stickers are made in the form of warning signs (in addition to color rings). The signs are triangular in shape with a black image on a yellow background.
Important! In water supply networks hot water and in the case of transporting leaded gasoline, the inscriptions must be white.
If the contents of the pipeline can damage the color designation, change its shade, special shields are used as additional markings, which are informative in nature, digital and alphabetic. The requirements for the graphics of the shields are identical to those of the stickers. Dimensional characteristics of the shields correspond to the characteristics of the arrows. Labeling boards should be located in clearly visible places, if necessary, illuminated by artificial lighting without interference for viewing by maintenance personnel.
Types of coatings
To cover linear systems, a paintwork material is used that corresponds to GOST and depends on the internal component, the physico-chemical composition of the pipes, their insulating characteristics, and also on the cost of the paint.
In rooms where there is no aggressive environment, good ventilation is established, it is possible to use enamels according to technical documentation.
USSR STATE STANDARD
GOST 14202-69 USSR STATE COMMITTEE ON STANDARDS MOSCOW
USSR STATE STANDARD
Decree of the Committee of Standards, Measures and measuring instruments under the Council of Ministers of the USSR dated February 7, 1969 No. 168, the deadline for introduction is set
1. This standard applies to identification coloring, warning signs and marking plates of pipelines (including fittings, fittings, fittings and insulation) for designed, newly built, reconstructed and existing industrial enterprises inside buildings, for outdoor installations and communications located on overpasses and in underground channels in order to quickly determine the contents of pipelines and facilitate the management of production processes, as well as ensuring labor safety.
The standard does not apply to the identification coloring of pipelines and ducts with electrical wiring.
2. The following ten enlarged groups of substances transported through pipelines are established:
3) air;
4) combustible gases (including liquefied gases);
5) non-flammable gases (including liquefied gases);
6) acids;
7) alkalis;
8) combustible liquids;
9) non-flammable liquids;
10) other substances.
3. Identification coloring and digital designation of enlarged groups of pipelines must correspond to those indicated in the table
1. 4. The characteristics of the colors of the identification color must correspond to those specified in the application
1. 5. Fire-fighting pipelines, regardless of their contents (water, foam, steam for extinguishing a fire, etc.), sprinkler and deluge systems in the areas of shut-off and control valves and at the points of connection of hoses and other fire extinguishing devices must be painted in red color (signal).
If it is necessary to indicate the contents of fire-fighting pipelines, it is allowed to additionally designate them by means of marking plates painted in the appropriate distinctive colors.
Table 1
Substance being transported | Samples and name of colors of identification coloring | |
Group number | Name | |
1 | Water | Green |
2 | Steam | Red |
3 | Air | Blue |
4 | combustible gases | Yellow |
5 | Non-flammable gases | Yellow |
6 | acids | Orange |
7 | alkalis | Violet |
8 | Flammable liquids | Brown |
9 | Non-flammable liquids | Brown |
9 | Other substances | Grey |
6. Identification painting of pipelines should be carried out continuously over the entire surface of communications or in separate sections.
The method for performing identification painting should be selected depending on the location of the pipelines, their length, diameter, the number of lines located together, safety and industrial sanitation requirements, lighting conditions and visibility of pipelines for maintenance personnel and the general architectural solution.
It is recommended to paint pipelines in sections in workshops with a large number and length of communications, as well as in cases where, due to the increased requirements for color rendering and the nature of the architectural solution of the interior, a concentration of bright colors is undesirable due to working conditions.
Identification painting over the entire surface of pipelines is recommended for use with a small length and a relatively small number of communications, if it does not worsen working conditions in the shops.
On outdoor installations, it is recommended to use identification coloring over the entire surface only in cases where this does not cause deterioration of operating conditions due to the effect of solar radiation on communications.
7. When applying identification coloring in sections to pipelines located inside industrial premises, it is recommended to paint the rest of the communication surface in the color of walls, partitions, ceilings and other interior elements against which the pipelines are located. At the same time, it is not allowed to paint pipelines between sections with an identification color adopted to designate other enlarged groups of substances.
8. When applying identification coloring in sections to pipelines located outside buildings, it is recommended to paint the rest of the communications surface in colors that help reduce the thermal effect of solar radiation on pipelines.
9. When laying communications in impassable channels and when laying communications without channels, areas of identification coloring on pipelines should be applied within the chambers and manholes.
10. Areas of identification coloring should be applied taking into account local conditions at the most critical communication points (at branches, at joints, flanges, at sampling and instrumentation points, at places where pipelines pass through walls, partitions, ceilings, at inputs and outputs from industrial buildings etc.) at least every 10 m inside production facilities and outdoor installations and every 30-60 m on external main routes.
11. The width of the areas of identification coloring should be taken depending on the outer diameter of the pipelines (including insulation):
- for pipes with a diameter of up to 300 mm - at least four diameters;
- for pipes with a diameter of more than 300 mm - at least two diameters.
At more it is recommended to take the areas of identification coloring on all pipelines of the same width and apply them at the same intervals.
With large diameters of pipelines, areas of identification coloring may be applied in the form of strips, with a height of at least 1/4 of the circumference of the pipeline.
The width of the strips must correspond to the dimensions established for pipelines of a given diameter.
12. To designate the most hazardous substances transported by properties, warning color rings should be applied to pipelines.
The colors of the identification color for warning rings must correspond to those indicated in Table. 2.
13. In cases where a substance simultaneously has several dangerous properties, indicated by different colors, rings of several colors should be applied to pipelines at the same time.
On vacuum pipelines, in addition to the distinctive color, it is necessary to give the inscription "vacuum".
14. According to the degree of danger to human life and health or the operation of the enterprise, substances transported through pipelines should be divided into three groups, indicated by the corresponding number of warning rings in accordance with table 3.
15. Characteristics of signal colors must comply with those specified in Appendix 2.
16. The width of the warning rings and the distance between them must be taken depending on the outer diameter of the pipelines in accordance with drawing. 1 and tables 4.
17. With a large number of parallel communications, warning rings on all pipelines should be of the same width and applied at the same intervals.
table 2
Notes:
1. When applying yellow rings for identification coloring of pipelines of gases and acids, the rings must have black borders with a width of at least 10 mm.
2. When applying green rings for the identification color of water pipelines, the rings must have white borders with a width of at least 10 mm.
18. Gas outlet lines and venting to the atmosphere, depending on their contents, must have an identification color established for symbol enlarged groups, with sinuous transverse rings of the corresponding signal color.
19. To designate pipelines with content that is especially hazardous to human health and life or the operation of an enterprise, as well as, if necessary, to specify the type of hazard, warning signs should be used in addition to color warning rings.
20. Warning signs should indicate the following substances: poisonous, flammable, explosive, radioactive, as well as other dangerous contents of pipelines (for example, substances that are hazardous when splashed, etc.).
21. Warning signs should be in the form of a triangle. Images must be black on a yellow background.
Table 3
Group | Number of warning rings | Substance being transported | Pressure in kgf/cm2 | Temperature in °C |
1 | One | superheated steam | up to 22 | 250 to 350 |
Hot water, saturated steam | 16 to 80 | St. 120 | ||
Superheated and saturated steam, hot water | 1 to 16 | 120 to 250 | ||
Combustible (including liquefied and active gases, flammable and combustible liquids) | up to 25 | From minus 70 to 250 | ||
Up to 64 | From minus 70 to 350 | |||
2 | Two | superheated steam | Up to 39 | 350 to 450 |
Hot water, saturated steam | 80 to 184 | St. 120 | ||
Products with toxic properties (except for highly active toxic substances and fuming acids) | Up to 16 | From minus 70 to 350 | ||
Combustible (including liquefied) active gases, flammable and combustible liquids | 25 to 64 | 250 to 350 and minus 70 to 0 | ||
Non-flammable liquids and lares, inert gases | 64 to 100 | From 340 to 450 and from minus 70 to 0 | ||
3 | Three | superheated steam | Regardless of the pressure | 450 to 660 |
Hot water, saturated steam | St. 184 | St. 120 | ||
Potent toxic substances (SDN) and fuming acids | Regardless of the pressure | From minus 70 to 700 | ||
Other products with toxic properties | St. 16 | From minus 70 to 700 | ||
Combustible (including liquefied) and active gases, flammable and combustible liquids | Regardless of the pressure | 350 to 700 | ||
Non-flammable liquids and vapors, inert gases | Regardless of the pressure | 450 to 700 |
Note. For substances that are hazardous in terms of properties or a combination of properties that are not included in this table, hazard groups should be established in agreement with the Gosgortekhnadzor authorities.
Table 4
22. The image of warning signs should be taken in accordance with Drawing 2 and Table 5
Toxic substances | Flammable substances | radioactive substances | Explosives |
Caustic and corrosive substances | Harmful and allergic substances | Oxidizer | Other hazards |
Table 5
Options | a, mm |
1 | 56 |
2 | 52 |
3 | 74 |
4 | 105 |
5 | 148 |
23. In cases where the impact of aggressive flowing substances can cause a change in the hue of distinctive colors, pipelines should be marked with marking plates.
24. Labeling plates should be used to additionally indicate the type of substances and their parameters (temperature, pressure, etc.) required by the operating conditions. Marking plates on pipelines or on the surfaces of structures to which pipelines are attached must be marked with alphabetic or numeric inscriptions.
25. The inscriptions on the shields of the pipelines must be made in a clear, well-defined font and must not contain unnecessary data, little-used terms and incomprehensible abbreviations. The font for inscriptions is recommended to be taken in accordance with GOST 10807-78.
It is allowed to designate the type of substance by means of numbers in accordance with Appendix 3. The designation of the type of substance by means of chemical formulas is not allowed.
26. The direction of the flow of substances transported through pipelines should be indicated by the sharp end of the marking plates or arrows applied directly to the pipelines. The shape and size of the arrows must match the shape and size of the labels.
27. Marking shields must be of four types: 1 - to indicate the flow moving in both directions; 2 the same, in the left direction; 3 the same, in the right direction; 4 - to indicate the place of selection of the transported substance.
28. The dimensions of the camouflage shields must correspond to those indicated in Fig. 3 and in table. 6.
Table 6
Size options | a, mm | b, mm | Height of letters h, mm | |
one line | two lines | |||
1 | 26 | 74 | 19 | - |
2 | 52 | 148 | 32 | 19 |
3 | 74 | 210 | 50 | 25 |
4 | 105 | 297 | 63 | 32 |
5 | 148 | 420 | 90 | 50 |
29. Size options for labels, inscriptions and warning signs should be used mainly:
- 1-in laboratories;
- 2 and 3-in industrial premises;
- 4 and 5 - on outdoor installations and outdoor trunk routes.
30. When attaching them to pipelines, warning signs should be placed together with marking plates.
31. The height of markings on pipelines should be taken depending on the outer diameter of the pipeline in accordance with drawing. 4 and table. 7.
Table 7
Size options | Outer diameter D, mm | Height of letters h, mm | |
one line | two lines | ||
1 | up to 30 | 19 | - |
2 | 81 to 160 | 32 | 19 |
3 | 161 to 220 | 50 | 25 |
4 | 221 to 300 | 63 | 32 |
5 | St. 300 | 90 | 50 |
The color of markings and arrows indicating the direction of flow applied to pipelines and marking plates should be white or black, taking into account the greatest contrast with the main color of the pipelines.
The color of the inscriptions when applied against the background of identification coloring is taken:
- white-on green, red and brown background;
- black on blue, yellow, orange,
- purple and gray background.
32. The size of labels, inscriptions and warning signs should be selected depending on the distance from which they should be perceived by personnel associated with the operation of pipelines in accordance with drawing. 5 and tab. eight.
33. Paint and varnish coatings for identification painting, marking plates and warning signs must be carried out in accordance with the current standards for paintwork materials and coatings, depending on the material of pipelines or the insulation protecting them and operating conditions, as well as the cost of paint and varnish coatings and the technology of their application.
34. Paints and varnishes used for identification painting, marking plates and warning signs must meet the requirements of the relevant standards, as well as technical documentation approved in the prescribed manner.
35. When preparing surfaces for painting, applying and drying paint and varnish coatings, the safety regulations and fire prevention measures provided for by the current fire regulations and rules must be observed.
36. In heated and ventilated industrial premises without aggressive environments, it is recommended to carry out the identification coloring of pipelines, marking plates and warning signs with pentaphthalic enamels of grades PF-115 according to GOST 6465-76, PF-133 according to GOST 926-82 and other brands according to the technical documentation approved according to established order.
It is recommended to paint fire-fighting pipelines and equipment with red enamel according to the technical documentation approved in the prescribed manner.
37. Identification colors and signal colors are allowed to be accepted in accordance with the following standards of the color standard card index:
- green #343-344;
- red #10-11;
- blue #423-424;
- yellow #205-206;
- orange #101-102;
- purple #505-506;
- brown #647-648;
- gray #894-895.
Required shades of purple and brown in accordance with the samples of Table. 1 can be obtained by adding white paint.
38. The identification coloring of pipelines and the color finish of marking plates and warning signs should be periodically renewed, taking into account the provision of clear visibility of colors, images and inscriptions. The coloring should be even, without streaks, wrinkles, spots and should not peel off.
39. Marking boards, inscriptions and warning signs should be located taking into account local conditions at the most critical communication points (at branches, at junctions, at points of selection, at valves, gate valves, valves, gates, control devices, at places where pipelines pass through walls , partitions, ceilings, at inputs and outputs from industrial buildings, etc.). Marking plates, warning signs and inscriptions on pipelines should be located in well-lit places or illuminated to ensure their clear visibility, while light sources should not obscure the images and inscriptions, as well as dazzle personnel when observing them.
Table 8
It is recommended to take the lowest illumination at critical points of communication when labeling plates, inscriptions and warning signs are located in them at 150 lux with fluorescent lamps and 50 lux with incandescent lamps.
40. In all industrial premises where there are pipelines, in places that are well accessible for viewing, identification coloring schemes for communications should be hung out with a decoding of distinctive colors, warning signs and digital notation accepted for marking pipelines.
X>0.526-0.683y
x<0,410-0,317у
y>0.282+0.396x
at<0,547-0,394x
Below are answers to the most common questions about marking pipelines for industrial and civil facilities.
What color should the pipelines be painted in the central heating station, ITP, boiler room?
According to GOST 14202, the marking of pipelines does not depend on the object, but depends on the substance in the pipeline.
Pipelines with the transported substance WATER are painted green, STEAM - red, AIR - blue, GAS - yellow, ACIDS - orange, ALKALINE - violet, LIQUIDS - brown, OTHER - gray.
How to mark pipelines in the central heating station, ITP, boiler room?
The most common substances in the pipelines of the central heating substation/ITP/boiler rooms are water, steam, and gas.
The pipeline with water should be painted green, with steam - red, with gas - yellow. Identification coloring is allowed to be applied in sections.
It is also necessary to indicate the name and direction of movement of the substance using or . Their color must be the same as that of the identification markings. The locations of the shields are regulated by regulatory documentation.
What color should the hot/cold water/coolant pipes be painted?
All pipelines transporting substances whose main component is water are painted green in accordance with.
How, according to regulatory documentation, to distinguish the color of the supply pipeline from the return pipeline in the central heating station, ITP, boiler room?
If you mark the pipelines in accordance with, then the supply and return pipelines are painted green (if the coolant is water).
To identify the supply and return pipelines, use the appropriate designations with the direction of movement and the inscription, for example “HEATING TRANSPORT SUPPLY”
Is it correct to mark the coolant supply / return pipelines with yellow and brown rings on a green background?
The requirement to mark the supply pipeline of the heating network with a yellow ring on a green background, and the return pipeline - with a brown ring on a green background, is borrowed from the now inactive "Typical instructions for the operation, repair and control of stationary pipelines of network water RD 34.39.501, TI 34-70-042- 85" and was valid only for network water pipelines that are on the balance sheet of power plants.
The current regulatory documentation for marking pipelines with coolant refers exclusively to the requirements of GOST 14202.
How to mark gas pipelines correctly?
Pipelines transporting any gases are painted yellow in accordance with.
Specify the name of the gas and the direction of movement with or .
It is also necessary, depending on the parameters of the gas, to apply red or yellow warning rings (Table 3, ), and if the gas has a hazardous property (flammability, toxicity, oxidizing agent), then an appropriate hazard sign must be applied.
How to mark steam pipelines?
Steam pipelines must be painted red and put on a red shield with the name and direction of its movement.
If the pressure in the steam pipeline is more than 1 kgf / cm² and the temperature of St. 120C, a yellow warning ring must be applied over the paint. With an increase in steam parameters, the number of applied rings increases (see Table 3
GOST 14202-69 has the status of a valid document.
What materials should be used when marking pipelines in accordance with GOST 14202-69?
There are also no documents prohibiting marking with self-adhesive tapes and PVC-based markers.
Moreover, the use of self-adhesive materials is more expedient (generally accepted all over the world) - more convenient, faster, more accurate, allows you to more accurately comply with the important requirements of GOST for color, size, font and shape.
GOST 14202-69 Pipelines of industrial enterprises. Identification painting, warning signs and labels.
This GOST defines the requirements for labeling labelspipelines. Coloring should be standard, warningsigns, the presence of an arrow that indicates the direction of movementsubstances and names of substances.
Colors and dimensions of pipeline marking in accordance with GOST 14202-69
Unmarked pipes can be hazardous to life and property. Accidents, injuries and damage to equipment can be authorized by people who do not know what is in a particular pipe.
Proper pipe identification prevents fatal errors. Accidents that occur due to negligence in enterprises lead to physical and psychological consequences for the personnel and are often very costly for the enterprise.
Proper pipe identification is a guarantee of the best understanding of the building structure and a clear understanding quickly for new workers and temporary staff. At the same time, this simplifies repair work and prevents time-consuming searches for the cause of a breakdown. In the event of an accident, correctly made identification will save such valuable time - and perhaps even help save someone's life.
We suggest you order and buy double-sided arrow stickers for pipelines in Moscow. Arrows markers are made of PVC film on an adhesive basis, operated in conditions from -40 to +80 degrees. The temperature during gluing the marking arrows must be at least +10 degrees. Arrow stickers are resistant to water and humidity; as well as exposure to slightly alkaline and slightly acidic environments.
PRICE
pipeline marking GOST 14202-69
Dimensions of the sticker for marking the pipeline, depending on the diameter of the pipe |
sticker price In rubles with VAT 20% |
Sticker for marking the pipeline arrow, size 126x26 mm for pipes with a diameter of up to 80 mm. | from 4.50 |
Sticker for marking the pipeline arrow, size 252x52 mm for pipes with a diameter of 81 to 160 mm. | from 13.90 |
Sticker for marking the pipeline arrow, size 358x74 mm for pipes with a diameter of 161 to 220 mm. | from 27.00 |
Sticker for marking the pipeline arrow, size 507x105 mm for pipes with a diameter of 221 to 300 mm. | from 46.80 |
Sticker for marking the pipeline arrow, size 716x148 mm for pipes with a diameter of more than 300 mm. | from 70.00 |
The minimum order amount is 5000 rubles.
Marking pipelines arrows, stickers.
All substances that are transported through pipelines are divided into 10 groups. Each group was assigned a color. This did not affect only the groups “Combustible gases” and “Non-combustible gases”, and “Combustible liquids” and “Non-combustible liquids” - all gases are indicated in yellow, and liquids in brown.
Marking of pipelines "Water"
The Water group is green. Marking pipelines arrows (or stickers) "WATER" have a clarification of what water is transported through the pipes:
cold water, hot water, city water, hot water supply, hot water return, cold water supply, cold water return, heating supply, heating return, distilled water, return water, cold water, water for injection, clean water, technical water, drinking water, contaminated water, condensate, condensate supply, condensate return, saline water, purified water, drainage, make-up water, direct heating, direct boiler circuit, raw water, boiler circuit return, heating return, feed water, make-up water, direct DHW , chemically treated water, warm water, chilled water, sealing water, contaminated condensate, clean condensate, water for mixing, water for decanter, waste water, waste water, coolant supply, coolant return, fire extinguishing water
All these names of "Water" are depicted on a green background in white or black letters and have a white or black edging, respectively, around the perimeter of the marking arrow or a sticker on the pipeline.
Marking pipelines "Steam"
The red background is used to designate the following group of substances transported through pipelines: "STEAM". Pipeline marking arrows (stickers) of the "PAR" group are:
steam, wet steam, wet saturated steam, steam return, deaf steam, heating steam, saturated steam, hot steam, high pressure steam, low pressure steam, medium pressure steam, clean steam, dry steam, industrial steam, fire extinguishing steam, superheated steam steam, dry saturated steam, steam supply, technical steam, return steam, supply steam, water steam, treated steam, live steam, flash steam.
These names are written in black or white letters on a red background. And the arrows for marking pipelines of the "PAR" group have a white or black border.
Marking of pipelines "Air"
The marking of pipelines of the "AIR" group has a blue (cyan) color. Arrows marking "AIR" have different names:
air, atmospheric air, vacuum, high pressure air, low pressure air, pressure air, dry air, moist air, exhaust air, exhaust air, dry compressed air, instrumentation air, hot air, ventilation air, compressed air, blast air, polluted air, heated air, outdoor air, exhaust air, cooled air, purified air, supply air, recirculated air, sterile air, exhaust air, cooled air, cold air.
The letters and edging on the marker are contrasting - black or white.
Pipeline marking "Gas"
The fourth group "GAS" combustible and non-combustible. Arrows for marking pipelines "GAS" of bright yellow color. Write in black on a yellow field:
gas, nitrogen, nitrogen for fire extinguishing, ammonia, argon, argon for fire extinguishing, acetylene, biomethane, bromoethylene, butane, hydrogen, exhaust gases, high pressure gas, low pressure gas, helium, gas-air mixture, dimethylamine, sulfur dioxide, flue gases, inert gas, malodorous gas, isobutane, methane, propane, hydrogen sulfide, liquefied gas, chlorine, ethylene, purified gas, sulfuric acid fumes, carbon dioxide, gas mixture, purge gas, vinyl chloride, oxygen, methane, ozone, nitrogen oxide, natural gas , fuel gas, carbon monoxide, freon, fluorine, hydrogen fluoride, chloromethane, pure gas, ethane, cyclopropane.
Marking of pipelines "Acid"
The sixth acid group. On an orange background, in black letters:
acid, nitric acid, citric acid, sulfuric acid, hydrochloric acid, acetic acid, waste acid, acidic water.
Marking of pipelines "Alkalis"
The seventh group of alkali. For the manufacture of markings on pipelines for the transportation of alkali, purple markers are used, with white or black writing of the transported substance:
alkali, ammonia, caustic soda 10%, caustic soda 17%, sodium nitrite.
Marking pipelines "Liquid"
Liquids, whether flammable or not, are all displayed in brown. And, as a rule, they write in white on the arrows marking pipelines:
liquids, sewerage, centrifuge, oil, crude oil, refined oil, diesel fuel, sugar syrup, fresh yeast, cider base, juice concentrate, initial oil sludge, oil sludge for decanter, prepared oil sludge, oil sludge, substandard oil, flocculant, deacidified sulfate soap, tall oil, sulfate soap, black lye.
Marking of pipelines "Other substances"
Gray color denotes other substances, including powder, loose, aqueous pulps, gels, etc.
Perhaps you will also find information on .
Arrows, names of the transported substance of own production in rolls
Hazard symbols applied to arrows marking pipelines
Flammable substances |
Explosives |
Toxic substances |
Corrosive Substances |
radioactive substances |
Oxidizer |
Biological hazard |
Harmful and allergic substances |
---|
Liquids Acids
Alkali gas
Designation of the type of substance on the arrows
marking pipelines with numbers
Numerical designations | Substance being transported Name |
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1 | Water | ||||||||||||||||||||
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2 | Steam | ||||||||||||||||||||
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3 | Air | ||||||||||||||||||||
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4 | combustible gases | ||||||||||||||||||||
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5 | Non-flammable gases | ||||||||||||||||||||
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6 | acids | ||||||||||||||||||||
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7 | alkalis | ||||||||||||||||||||
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8 | Flammable liquids | ||||||||||||||||||||
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9 | Non-flammable liquids | ||||||||||||||||||||
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0 | Other substances | ||||||||||||||||||||
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■ GOST R 12.4.026-2001. Signal colors, safety signs and signal markings. Purpose and rules of application. General technical requirements and characteristics. Test methods.
4.68. Depending on the purpose of the pipeline and the parameters of the medium, the surface of the pipeline must be painted in the appropriate color and have markings in accordance with the requirements of the "Rules for the Design and Safe Operation of Steam and Hot Water Pipelines" of Gosgortekhnadzor.
Coloring, symbols, letter sizes and location of inscriptions must comply with GOST 14202. Plate heat exchangers should be painted with heat-resistant enamel.
■ SP 90.13330.2012. Set of rules. Thermal power plants. Updated version of SNiP II-58-75 (approved by Order of the Ministry of Regional Development of Russia dated June 30, 2012 No. 282).
9.1.14. The coloring of premises and equipment should be designed in accordance with GOST 14202 and GOST R 12.4.026, taking into account the color scheme of interiors and facades.
9.1.15. For structures of all kinds, corrosion protection should be provided in accordance with the requirements of the Code of Practice for Corrosion Protection.
For metal structures, if necessary, fire protection, structural or with the use of OZS, should also be provided.
When using OZS for fire protection of load-bearing metal structures, the design documentation should indicate:
Fire resistance limit of structures;
OZS Fire Efficiency Group;
Name of the OZS, designation of technical specifications and fire safety certificate;
The thickness of the OZS layer corresponding to the fire retardant efficiency group, taking into account the reduced thickness of the structure section;
Permissible types (grades) of soils according to the fire safety certificate and coating
(decorative and protective) compositions specified in the technical specifications or agreed with the developers of the OZS.
Works on the application of OZZ should be carried out in accordance with the PPR developed by a specialized organization involved in the implementation of these works.
9.4. Depending on the purpose of the pipeline and the parameters of the medium, the surface of the pipeline must be painted in the appropriate color and have markings in accordance with the requirements of PB 03-75 of the Gosgortekhnadzor of Russia.
Coloring, symbols, letter sizes and location of inscriptions must comply with GOST 14202.
2.2.1. All hot parts of the equipment, pipelines, tanks and other elements, touching which can cause burns, must be thermally insulated. The temperature on the surface of the insulation at an ambient temperature of 25 ° C should not exceed 45 ° C. The color, symbols, letter sizes and location of the inscriptions must comply with the Rules for the Design and Safe Operation of Steam and Hot Water Pipelines and GOST 14202-69 “Pipelines of industrial enterprises . Identification painting, warning signs and labels.
■ TI 34-70-042-85. Standard instruction for the operation, repair and control of station pipelines of network water (approved by the Main Technical Directorate for the Operation of Energy Systems on July 2, 1985) (RD dated July 02, 1985 No. 34-70-042-85; TI dated July 02, 1985 No. 34.39.501; CO (Standard of the organization) dated July 02, 1985 No. 153-34.39.501).
4.2.11. Coloring (color, sizes of colored rings) and inscriptions (letter symbols, sizes of letters and numbers) on pipelines must comply with the rules of the USSR Gosgortekhnadzor and GOST 14202-69.
4.2.12. The following inscriptions must be made on the main network pipelines:
Line number (Roman numeral);
An arrow indicating the direction of movement of the working environment;
Letter designations of the coolant (supply pipeline - P.S., return pipeline - O.S.).
4.2.13. On the network and make-up pipelines within the heat-preparation plant, the following must be applied:
Arrows indicating the direction of movement of the working environment;
Letter designations of the coolant (network water - S.V., make-up network water - V.P.).
Letters and numbers are in print. The inscriptions are applied with paint that is clearly visible against the background of the main color of the pipeline. It is not allowed to place an inscription on colored rings.
4.2.14. The number of inscriptions on the same pipeline is not standardized. The inscriptions must be visible from the valve control points. In the places where the pipeline exits and enters another room, as well as at the entrance and exit of the impassable channel, inscriptions are required.