Nowadays, it is difficult to imagine the life of cities and towns, as well as industrial enterprises without a well-established pipeline system. They supply liquids and gases, allow people to heat their homes and enable businesses to operate successfully. However, taking advantage of the existence of gas pipelines, one must remember that gas communications are quite dangerous, and damage to them is fraught with a serious accident.

From the history of gas pipelines

The first gas pipelines were used in Ancient China... Bamboo was used as pipes, but there was no pipe in the pipes and the gas was supplied by "gravity". Connections of bamboo pipes were packed with tow, such structures allowed the Chinese to heat and light their homes, evaporate salt.

The first European gas pipelines appeared in the second half of the 19th century. Then the gas was used to create street lighting. The first street lamps were oil-based, and in 1799 the Frenchman Le Bon proposed thermal lamps that could illuminate and heat rooms. The idea was not supported by the government, and he equipped his house in thousands, which remained a Parisian landmark until the death of the engineer. Only in 1813 did Le Bon's students manage to start lighting cities in this way, but this was already in England. It came to Paris six years later, in 1819. Artificial coal gas was used as fuel.

St. Petersburg began heating premises by transferring gas through a gas pipeline in 1835, and Moscow in 1865.

Types of gas pipelines depending on the gas pressure inside them and the method of laying

A gas pipeline is a structure of pipes, supports and auxiliary equipment designed to deliver gas to the desired location. Gas movement is always carried out under pressure, on which the characteristics of each section depend.

Gas pipelines are trunk or distribution. The former transport gas over long distances from one gas distribution station to another. The latter are designed to deliver gas from the distribution station to the place of consumption or storage. The pipeline can include either one or several lines interconnected by a single technological chain.

Main gas pipelines are of two categories, depending on the gas pressure in them.

The first category of gas trunklines operates under pressure up to 10 MPa.
The second category of gas trunklines is designed to operate with gas, the pressure of which is up to 2.5 MPa.

Distribution pipelines are divided into three groups depending on the gas pressure in them.

Low pressure. Gas is transferred to them at 0.005 MPa.
Medium pressure. Gas transmission in such pipelines is carried out under a pressure of 0.005 to 0.3 MPa.
High pressure. They work under pressure from 0.3 to 0.6 MPa.

Another classification makes it possible to divide all gas pipelines, depending on the method of their laying, into underground, underwater and surface ones.

What is a security zone of a gas pipeline and what is it for?

This is a piece of land symmetrical about the axis of the gas pipeline, the width of which depends on the type of gas pipeline and is established by special documents. The establishment of protective zones for gas pipelines makes it possible to prohibit or restrict construction in the area where the gas pipeline passes. The purpose of its creation is to create normal conditions for the operation of the gas pipeline, its regular maintenance, maintaining integrity, as well as minimizing the consequences of possible accidents.

There are "Rules for the Protection of Main Pipelines", which regulate the establishment of buffer zones for various pipelines, which include gas pipelines transporting natural or other gases.

Agricultural work is allowed on the territory of the buffer zone, but construction is prohibited. Reconstruction of existing networks and networks must be coordinated with the organization that maintains and operates the gas pipeline. The number of works that are prohibited from being carried out in the security zone also includes the arrangement of basements, the performance of welding works, the installation of fences that prevent free access to pipes, the creation of landfills and storage facilities, the installation of stairs resting on a gas pipeline, as well as the device of unauthorized connections.

Features of the security zone of high pressure gas pipelines

The protective zone of the 1st and 2nd category gas pipelines is arranged in the same way. Their function is to supply gas to low and medium pressure distribution networks.

Gas pipelines high pressure 1st category work with gas under pressure from 0.6 MPa to 1.2 MPa if they move natural gas or gas-air mixtures... For hydrocarbon gases transported in liquefied form, this pressure should not exceed 1.6 MPa. Their protection zone is 10 m on both sides of the axis of the gas pipeline in the case of distribution gas pipelines and 50 meters for high-pressure gas pipelines through which natural gas is transported. If liquefied gas is being transported, the security zone is 100 m.
High-pressure gas pipelines of the 2nd category transport natural gas, gas-air mixtures and liquefied gas under pressure from 0.3 to 0.6 MPa. Their security zone is 7 m, and if the main gas pipeline is 50 m for natural gas and 100 for liquefied.

Organization of a security zone for a high-pressure gas pipeline

The safety zone of the high-pressure gas pipeline is organized by the operating organization on the basis of a project that specifies the survey carried out after the completion of construction and the issued permits. To maintain it, the following activities are performed.

Every six months, the organization operating high-pressure gas pipelines is obliged to remind individuals and organizations that operate land in protected zones about the peculiarities of land use in these areas.
Every year the route must be updated and, if necessary, all the documentation issued on it must be corrected. The high-pressure gas pipeline protection zone is being specified accordingly.
The protective zone of a high-pressure gas pipeline is marked on its linear sections with the help of columns located at a distance of no more than 1000 m (Ukraine) and no more than 500 m (Russia), the column should also indicate all angles of pipe rotation.
The points of intersection of the gas pipeline with transport lines and other communications must be marked with special plates notifying that there is a high-pressure gas pipeline exclusion zone. Stopping vehicles within the designated security zone is prohibited.
Each column is supplied with two posters with information about the depth of the alignment, as well as its direction. The first plate is installed vertically, and the other with mileage marks - at an angle of 30 degrees for visual control from the air.

Features of the security zone of medium pressure gas pipelines

The security zone of the medium-pressure gas pipeline is 4 meters in accordance with regulatory documents. As for high pressure lines, it is established on the basis of technical documentation provided by design organizations. The basis for the creation of a security zone and its application to the master plan is an act issued by local governments or executive authorities.

The protected zone of the medium-pressure gas pipeline assumes the presence of restrictions similar to those indicated for the high-pressure routes. To carry out any excavation work in the security zone, it is required to obtain a permit from the organization serving this section of the gas pipeline.

The marking of guard zones for medium pressure is carried out in the same way. The columns should contain plates with information about the name of the gas pipeline, the linking of the route, the distance from the plate to the axis of the pipeline, the size of the security zone, telephones for communication with the organization serving this section of the gas pipeline. Shields are allowed to be placed on communication networks and control and measuring columns.

Features of the security zone of low pressure gas pipelines

The main function of gas pipelines low pressure is to ensure the supply of gas to residential buildings and structures, which can be either built-in or detached. Transportation with their help a large number gas is unprofitable, therefore large consumers - public utilities do not use such networks.

The protective zone of the low-pressure gas pipeline is 2 m in both directions from the axis of the pipe laying. Such gas pipelines are the least dangerous, therefore the security zone around them is minimal. Restrictions on its operation are similar to those introduced for security zones of other types of gas pipelines.

The protective zone of the low-pressure gas pipeline is marked similarly to the two previous ones. If the plates located on the bindings are yellow, then the laid pipeline is made of polyethylene. If it is green, then the pipe material is steel. The label does not have the red border on the top, which is typical for high-pressure pipelines.

Protective zone of the external gas pipeline

An external gas pipeline is a gas pipeline that is outside buildings to a diaphragm or other shutdown device, or to a case, with the help of which it is entered into a building when underground option... It can be located underground, aboveground or above ground.

For external gas pipelines, there are following rules defining security zones:

The security zone of the external gas pipeline along the routes is 2 m on each side of the axis.

If the gas pipeline is underground and is made of polyethylene pipes, and the route is marked with copper wire, then the protective zone of the underground gas pipeline in this case is 3 m from the side where the wire is located, and 2 m from the other side.
If the gas pipeline is arranged for that, regardless of the pipe material, its protective zone is 10 m on both sides of the pipe axis.
If the gas pipeline is inter-settlement and crosses wooded areas or areas overgrown with bushes, its buffer zone is 3 meters on both sides of the axis. They are arranged in the form of glades, the width of which is 6 meters.
The security zone of gas pipelines located among tall trees is equal to their maximum height so that a tree falling cannot cause a violation of the integrity of the gas pipeline.
The protective zone of an external gas pipeline passing under water through rivers, reservoirs or lakes is 100 m. It can be visualized as the distance between two parallel planes passing through conventional boundary lines.

How a security zone is established for a specific gas pipeline

The protected zone of the gas pipeline is one of the territories with a special land use regime. At the same time, there is a sanitary protection zone for these objects, the rules for the arrangement of which are established by SanPiN 2.2.1 / 2.1.1.1200-03.

According to Appendix 1 to these rules, the sanitary zone of a high-pressure gas pipeline depends on the pressure in the pipe, its diameter, as well as the type of buildings and structures in relation to which the distance is calculated.

The smallest of rivers and other reservoirs, as well as water intakes and irrigation structures is 25 m for main gas pipelines of any diameter and type.

The largest protective zone for a high-pressure gas pipeline is necessary when it comes to a main gas pipeline of the 1st class with a diameter of 1200 mm in cities, summer cottages and other places where people gather. In this case, the length of the sanitary zone reaches 250 m.

More detailed data on the sanitary protection zones of the main gas pipelines of natural and liquefied gas can be found in the corresponding tables of this document. For highways transporting liquefied gas, the sanitary zones have been significantly increased.

Violation of the security zone of the gas pipeline. Legal and environmental implications

Violation of the security zone of the gas pipeline can cause a serious man-made accident, fire or explosion. They can be caused by unauthorized excavation in security zones without the consent of the organization serving the gas pipeline, falling trees, damage by cars.

In the best case, a violation of the insulation will occur, in the worst case, cracks and other defects will appear on the pipe, which over time will cause a gas leak. Such defects may not appear immediately and only cause an emergency condition over time.

Damage to gas pipelines due to violation of security zones is punishable by a large administrative fine, which depends on the degree of damage caused. The demolition of buildings and structures built on the territory of the protected zones is carried out by the decision of the administrative court.

Conducting unauthorized earthworks, unauthorized planting of trees and shrubs, organizing sports competitions, placing fire sources, building buildings, developing sand pits, as well as fishing, deepening or cleaning the bottom and arranging a watering hole in the places where the underwater section of the gas pipeline passes is punishable by fines from 5 thousand rubles.

Protected zones in the design of gas pipelines: land acquisition and arrangement

The Rules for the Protection of Gas Distribution Networks will help to determine which protective zone of the gas pipeline should be applied in each specific case. Typically, this documentation, along with other approvals, is provided by the designers. The question of who will coordinate the project with the services operating the networks, as well as with the local authorities, is determined by the work contract. The organization carrying out the project must have a license for these types of work.

The first stage in the creation of a security zone is the execution of a control and executive survey. Its main purpose is to check the correctness of the bindings and their compliance with the design documentation.

The result of this survey is the updated coordinates of the characteristic points of the finished route, the location, number and geometry of the elements and parts of the gas pipeline, as well as the established regulatory points, measuring instruments, Hydraulic fracturing and GRU, supports and other structures.

Protective zones for gas distribution networks are determined by the Rules approved by Government Decree No. 878 on November 20, 2000.

Protected zones of gas mains are regulated by the Rules approved by the Ministry of Fuel and Energy on 04/29/1992 and Gostekhnadzor (No. 9) on 04/22/1992.

The result of these works is a map or plan for this land management object, which is subject to agreement with the owners or users. land plots through which the gas pipeline passes. One copy of the land management file for this site is transferred to the state land registry authorities.

Outdoor gas pipelines, structures / SNiP 2.04.08-87 *

General instructions

4.1. The requirements of this section apply to the design of external gas pipelines from gas distribution stations or hydraulic fracturing stations to gas consumers (outer walls of buildings and structures).

4.2. Projects of external gas pipelines laid through the territory of settlements should be carried out on topographic plans in the scale provided for by GOST 21.610-85. It is allowed to carry out projects of inter-settlement gas pipelines on the plans of 1: 5000 with fixing the axis of the route in nature. It is allowed not to make longitudinal profiles of gas pipeline sections laid on a location with a calm relief, in the absence of crossings of the gas pipeline with natural barriers and various structures.

* Sections, paragraphs, tables, formulas, which have been amended, are marked in these building codes and regulations with an asterisk.

4.3. The laying of external gas pipelines on the territory of settlements should be envisaged. As a rule, underground in accordance with the requirements of SNiP 2.07.01-89 *. Aboveground and aboveground laying of external gas pipelines is allowed inside residential areas and courtyards, as well as on other separate sections of the route.
The laying of gas pipelines in relation to the metro should be provided in accordance with the requirements of SNiP 2.07.01.89 *.
On the territory of industrial enterprises, the laying of external gas pipelines should be carried out, as a rule, above the ground in accordance with the requirements of SNiP II-89-80 *.

4.4. * The choice of the route of underground gas pipelines should be made taking into account the corrosiveness of soils and the presence of stray currents in accordance with the requirements of GOST 9.602-89.

4.5. * Entries of gas pipelines into residential buildings should be provided in non-residential premises available for inspection of gas pipelines. In existing residential buildings owned by citizens on the basis of personal property rights, it is allowed to enter the gas pipeline into the living quarters where the heating stove is installed, provided that the disconnecting device is located outside the building.
Gas pipelines in public buildings should be provided directly to the room where the gas appliances, or into the corridors.
The placement of disconnecting devices should be provided, as a rule, outside the building.

4.6. Gas pipelines inlets into buildings of industrial enterprises and other buildings of an industrial nature should be provided directly into the room where the units consuming gas are located, or into the adjacent room, provided that these rooms are connected with an open opening. In this case, the air exchange in the adjacent room must be at least three times per hour.

4.7. Gas pipeline inlets should not pass through foundations and under the foundations of buildings. The intersection of foundations at the inlet and outlet of hydraulic fracturing pipelines is allowed.
4.8. Entries of gas pipelines into technical undergrounds and technical corridors and wiring through these premises in residential buildings and public buildings are allowed only when external low-pressure gas pipelines are connected to them in intra-quarter collectors.

4.9. Gas pipelines are not allowed to enter basements, elevator rooms, ventilation chambers and shafts, waste bin rooms, transformer substations, switchgears, machine rooms, warehouses, rooms related to explosive and explosive fire hazard to categories A and B.
4.10. Constructive decisions inputs should be taken taking into account the requirements of paragraphs. 4.18 and 4.19 *.

4.11. Steel pipe connections should be provided for welding.
Detachable (flange and threaded) connections should be provided at the places of installation of valves, on condensate traps and hydraulic locks, at the points of connection of instrumentation and electrical protection devices.

4.12. It is not allowed to provide detachable joints on gas pipelines in the soil.

Underground gas pipelines

4.13. * The minimum horizontal distances from underground and surface (in the embankment) gas pipelines to buildings (except for hydraulic fracturing) and structures should be taken in accordance with the requirements of SNiP 2.07.01-89 *. The specified distances from the buildings of the hydraulic fracturing station to the incoming and outgoing gas pipelines are not standardized.
It is allowed to reduce up to 50% of the distances specified in SNiP 2.07.01-89 *, for gas pipelines with a pressure of up to 0.6 MPa (6 kgf / cm2), when laying them between buildings and under the arches of buildings, in cramped conditions on certain sections of the route, as well as from gas pipelines with a pressure of over 0.6 MPa (6 kgf / cm2) to free-standing non-residential and auxiliary buildings.
In these cases, in the areas of convergence and 5 m in each direction from these areas, it is necessary to provide:
use of seamless or electrowelded pipes that have passed 100% inspection of the factory welded joint non-destructive methods, or electrically welded pipes that have not passed such control, but laid in a case; non-destructive testing of all welded (assembly) joints.

The distance from the gas pipeline to the outer walls of wells and chambers of other underground engineering networks should be taken at least 0.3 m.In areas where the clear distance from the gas pipeline to wells and chambers of other underground engineering networks is from 0.3 m to the standard distance for this communications, gas pipelines should be laid in compliance with the requirements for laying gas pipelines in cramped conditions.

When laying electric-welded pipes in a case, the latter should protrude at least 2 m in each direction from the wall of the well or chamber.
Distances from the gas pipeline to the towers of the overhead communication line, the tram, trolleybus and electrified railways contact network should be taken as to the towers of overhead power lines of the corresponding voltage.

Minimum distances from gas pipelines to the heating network channelless laying with longitudinal drainage should be taken in the same way as duct laying of heating networks.
The minimum clear distance from the gas pipeline to the nearest pipe of the heating network of channelless laying without drainage should be taken as to the water supply. The distances from the anchor supports that go beyond the dimensions of the pipes of the heating network should be taken taking into account the safety of the latter.

The minimum horizontal distance from the gas pipeline to pressure sewerage allowed to take as before the water supply.
The distance from the gas pipeline to narrow-gauge railways should be taken as to tram tracks according to SNiP 2.07.01-89 *.
Distances from gas pipelines to warehouses and enterprises with flammable materials should be taken according to the norms of these enterprises, but not less than the distances specified in SNiP 2.07.01-89 *.
The minimum horizontal and vertical distances from gas pipelines to main gas pipelines and oil pipelines should be taken in accordance with the requirements of SNiP 2.05.06-85.
Distances from inter-settlement gas pipelines with a pressure of 0.6 MPa or more to the bottom of the embankment and the edge of the excavation slope or from the extreme rail at the zero marks of the railways of the general network should be taken at least 50 m. the specified distance to the values given in SNiP 2.07.01-89 *, provided that the gas pipeline is laid in this section at a depth of at least 2.0 m, the pipe wall thickness increases by 2-3 mm more than the calculated one and all welded joints are checked by non-destructive testing methods ...

4.14. It is allowed to lay two or more gas pipelines in one trench, at the same or different levels (steps). In this case, the distances between gas pipelines in the light should be sufficient for the installation and repair of pipelines.

4.15. * The vertical distance in the clear when crossing gas pipelines of all pressures with underground engineering networks should be taken at least 0.2 m, s electrical networks- in accordance with the PUE, with cable communication lines and radio broadcasting networks - in accordance with VSN 116-87 and VSN 600-81, approved by the USSR Ministry of Communications.

4.16. At the intersection of underground gas pipelines, heating network channels, communication collectors, channels of various purposes with a passage above or below the structure to be crossed, it is necessary to lay a gas pipeline in a case extending 2 m in both directions from the outer walls of the crossed structures, as well as non-destructive testing of all welded joints within the intersection and 5 m to the sides of the outer walls of the crossed structures.
A test tube should be provided at one end of the case that extends underneath protective device.

4.17. The depth of laying gas pipelines should be taken at least 0.8 m to the top of the gas pipeline or case.
In places where no traffic is foreseen, the depth of gas pipelines may be reduced to 0.6 m.

4.18. The laying of gas pipelines transporting undried gas should be provided below the zone of seasonal freezing of the soil with a slope to condensate traps of at least 2 ‰.
Inputs of gas pipelines of undried gas into buildings and structures should be provided with a slope towards the distribution gas pipeline. If, due to the conditions of the terrain, the necessary slope to the distribution gas pipeline cannot be created, it is allowed to provide for the laying of a gas pipeline with a break in the profile with the installation of a condensate collector at the lowest point.
The laying of gas pipelines of the vapor phase of LPG should be provided in accordance with the instructions of Sec. nine.

4.19. * Gas pipelines in places of passage through the outer walls of buildings should be enclosed in cases.
The space between the wall and the case should be carefully sealed to the full thickness of the structure to be crossed.
The ends of the case should be sealed with elastic material.

4.20. Laying gas pipelines in soils with inclusion construction waste and humus should be provided with a device for a gas pipeline of a base made of soft or sandy soil with a thickness of at least 10 cm (over protruding unevenness of the base); backfilling with the same soil to the full depth of the trench.
In soils with a bearing capacity of less than 0.025 MPa (0.25 kgf / cm2), as well as in soils with the inclusion of construction waste and humus, the bottom of the trench should be reinforced by lining antiseptic wooden beams, concrete beams, pile foundations or ramming crushed stone or gravel. In this case, backfilling of soil under the gas pipeline and backfilling of it should be done as indicated in the first paragraph of this paragraph.

4.21. In the presence of groundwater measures should be taken to prevent floatation of gas pipelines, if this is confirmed by calculation.

Overhead and surface gas pipelines

4.22. * Overhead gas pipelines should be laid on free-standing supports, stacks and columns made of non-combustible materials or along the walls of buildings.
In this case, laying is allowed:

on free-standing supports, columns, ramps and stacks - gas pipelines of all pressures;
along the walls of industrial buildings with rooms of categories B, D and D - gas pipelines with a pressure of up to 0.6 MPa (6 kgf / cm2);
on the walls of public buildings and residential buildings not lower than III-IIIa degree of fire resistance - gas pipelines with pressure up to 0.3 MPa (3 kgf / cm2);
on the walls of public buildings and residential buildings of IV-V degrees of fire resistance - low-pressure gas pipelines with a nominal pipe diameter, as a rule, no more than 50 mm, and when placing gas pressure regulators on the outer walls and other structures of these buildings - gas pipelines with a pressure of up to 0.3 MPa - in the areas before entering them into the regulators.

Transit laying of gas pipelines is prohibited:

on the walls of buildings for children's institutions, hospitals, schools and entertainment enterprises - gas pipelines of all pressures;
along the walls of residential buildings - medium and high pressure gas pipelines.

It is forbidden to lay gas pipelines of all pressures through buildings with walls made of panels with metal cladding and polymer insulation and for buildings of categories A and B.

4.23. Overhead gas pipelines laid on the territory of industrial enterprises and supports for these gas pipelines should be designed taking into account the requirements of SNiP II-89-80 * and SNiP 2.09.03-85.

4.24. High-pressure gas pipelines are allowed to be laid along blank walls, above windows and doorways of one-story and above the windows of the upper floors of multi-storey industrial buildings with rooms for explosion and fire hazard categories C, D and D and auxiliary buildings interlocked with them, as well as buildings of detached boiler houses.
V industrial buildings it is allowed to lay low and medium pressure gas pipelines along the frames of non-opening windows and the intersection of the light openings filled with glass blocks by the indicated gas pipelines.

4.25. The distances between gas pipelines laid along the walls of buildings and other engineering networks should be taken in accordance with the requirements for laying gas pipelines inside premises (Section 6).

4.26. It is not allowed to provide detachable connections on gas pipelines under window openings and balconies of residential buildings and public buildings of a non-industrial nature.

4.27. Aboveground and surface gas pipelines, as well as underground gas pipelines in areas adjacent to the places of entry and exit from the ground, should be designed taking into account longitudinal deformations for possible temperature effects.

4.28. Gasket height overhead gas pipelines should be taken in accordance with the requirements of SNiP II-89-80 *.
In a free area outside the passage of vehicles and the passage of people, it is allowed to lay gas pipelines on low supports at a height of at least 0.35 m from the ground to the bottom of the pipe.

4.29. Gas pipelines at the points of entry and exit from the ground should be enclosed in a case. In places where the possibility of mechanical damage to gas pipelines is excluded (impassable part of the territory, etc.). installation of the cases is optional.

4.30. Gas pipelines transporting undried gas should be laid with a slope of at least 3 ‰ with devices for removing condensate at the lowest points (drain fittings with locking device). Thermal insulation should be provided for these gas pipelines.

4.31. The laying of LPG gas pipelines should be provided in accordance with the instructions of Sec. nine.

4.32. The horizontal distances in the light from above-ground gas pipelines laid on supports and above-ground (without embankment) to buildings and structures should be taken not less than the values indicated in table. 6.

4.33. The distance between aboveground gas pipelines and other engineering communications of aboveground and aboveground laying should be taken taking into account the possibility of installation, inspection and repair of each of the pipelines.

4.34. Distances between gas pipelines and by air lines power transmission, as well as cables should be taken according to the PUE.

4.35. * The distances between the supports of aboveground gas pipelines should be determined in accordance with the requirements of SNiP 2.04.12-86.

4.36. It is allowed to provide for laying on free-standing supports, columns, overpasses. Shelves of gas pipelines with pipelines for other purposes in accordance with SNiP II-89-80 *.

4.37. Joint laying gas pipelines with electrical cables and wires, including those intended for servicing gas pipelines (power, for signaling, dispatching, valve control), should be provided in accordance with the instructions of the PUE.

4.38. The laying of gas pipelines along railway and road bridges should be provided in cases where it is allowed by the requirements of SNiP 2.05.03-84 * while laying gas pipelines should be carried out in places that exclude the possibility of gas accumulation (in the event of its leakage) in the bridge structures.

Gas pipelines crossings through water barriers and ravines

4.39. Underwater crossings of gas pipelines through water barriers should be provided on the basis of data from hydrological, engineering-geological and topographic surveys.

4.40. Gates of underwater river crossings should be provided on straight, stable reach areas with gentle, non-eroded riverbanks with a minimum width of the flooded floodplain. The section of the underwater passage should be provided, as a rule, perpendicular to the dynamic axis of the flow, avoiding sections of rocky soils.

Table 6

Buildings and constructions	Clear distance, m, to buildings and structures from above-ground gas pipelines laid on supports and above-ground (without embankment)
	low pressure	medium pressure	high pressure category II	high pressure category I
Industrial and warehouse buildings with premises of categories A and B	5*	5*	5*	10*
The same categories C, D and E	-	-	-	5
Residential and public buildings of I-IIIa degree of fire resistance	-	-	5	10
The same, IV and V degrees of fire resistance	-	5	5	10
Open warehouses of flammable and combustible liquids and warehouses of combustible materials located outside the territory of industrial enterprises	20	20	40	40
Railway and tram tracks (to the nearest rail)	3	3	3	3
Underground network engineering: water supply, sewerage, heating network, telephone sewerage, electrical cable blocks (from the edge of the foundation of the gas pipeline support)	1	1	1	1
Roads (from curb, ditch outer edge or road embankment foot)	1,5	1,5	1,5	1,5
Open switchgear and open substation fence	10	10	10	10
* For gas pipelines of hydraulic fracturing (incoming and outgoing) the distance is not standardized. Note. The "-" sign means that the distance is not standardized.

4.41. Underwater crossings of gas pipelines with a width of water barriers with a low-water horizon of 75 m and more should be provided, as a rule. In two lines with a throughput of 0.75 of the design gas consumption each.
It is allowed not to provide for a second (reserve) gas pipeline thread when laying:
looped gas pipelines, if, when the underwater crossing is disconnected, an uninterrupted supply of gas to consumers is ensured:
dead-end gas pipelines to industrial consumers, if these consumers can switch to another type of fuel for the period of repair of the underwater crossing.

4.42. When crossing water barriers with a width of less than 75 m with gas pipelines intended for gas supply to consumers that do not allow interruptions in the gas supply, or when the width of the flooded floodplain is more than 500 m at the horizon level high waters(GWV) with a 10% supply and duration of flooding by flood waters for more than 20 days, as well as mountain rivers and water obstacles with an unstable bottom and banks, it is allowed to lay a second (reserve) line.

4.43. The minimum horizontal distances from bridges to underwater and surface gas pipelines in the places where they pass through water barriers should be taken according to table. 7.

4.44. The wall thickness of pipes for underwater crossings should be taken 2 mm more than the calculated one, but not less than 5 mm. For gas pipelines with a diameter of less than 250 mm, it is allowed to increase the wall thickness to ensure negative buoyancy of the gas pipeline.

4.45. The boundaries of the underwater passage of the gas pipeline, which determine the length of the passage, should be considered the section bounded by the GWV not lower than the marks of 10% availability. Stop valves should be placed outside the boundaries of this area.

4.46. Distances between the axes of parallel gas pipelines at underwater crossings should be taken at least 30 m.
On non-navigable rivers with a channel not subject to erosion, as well as when crossing water obstacles within settlements, it is allowed to provide for the laying of two gas pipelines in one trench. In this case, the distance between the gas pipelines in the clear should be at least 0.5 m.
When laying gas pipelines in floodplain areas, the distance between gas pipelines is allowed to be the same as for the linear part of the gas pipeline.

4.47. The laying of gas pipelines at underwater crossings should be provided with a deepening into the bottom of the crossed water barriers. The design elevation of the top of the ballasted gas pipeline should be taken at 0.5 m, and at crossings through navigable and floatable rivers 1 m below the predicted bottom profile, determined taking into account the possible erosion of the channel within 25 years after the completion of the crossing.

Table 7

		Horizontal distance between the gas pipeline and the bridge, m, when laying the gas pipeline
Water barriers	Bridge type	above the bridge		below the bridge
		from the surface gas pipeline	from the underwater gas pipeline	from the surface gas pipeline	from the underwater gas pipeline
Shipping freezing	All types	According to SNiP 2.05.06-85		50	50
Shipping non-freezing	Also	50	50	50	50
Non-navigable freezing	Multi-span	According to SNiP 2.05.06-85		50	50
Non-navigation non-freezing	Also	20	20	20	20
Non-navigable pressure for gas pipelines:
low	One- and two-span	2	20	2	10
medium and high	Also	5	20	5	20

At underwater crossings through non-navigable and non-melting water barriers, as well as in rocky soils, a decrease in the laying depth of gas pipelines is allowed, but the top of a ballasted gas pipeline in all cases must be below the mark of a possible erosion of the bottom of the reservoir for the design life of the gas pipeline.

4.48. * The width of the trench along the bottom should be taken depending on the methods of its development and the nature of the soil, the regime of the water barrier and the need for a diving survey.
The steepness of the slopes of underwater trenches must be taken in accordance with the requirements of SNiP III-42-80.

4.49. Calculation of underwater gas pipelines against surfacing (for stability) and their ballasting should be carried out in accordance with the requirements of SNiP 2.05.06-85.

4.50. For gas pipelines laid in the sections of underwater crossings, solutions should be provided to protect the insulation from damage.

4.51. On both banks of navigable and timber floating water barriers, identification marks of established samples should be provided. At the border of the underwater passage, it is necessary to provide for the installation of permanent benchmarks: with a barrier width with a low-water level up to 75 m - on one bank, with a greater width - on both banks.

4.52. The height of the laying of the above-water passage of the gas pipeline should be taken (from the bottom of the pipe or superstructure):
when crossing non-navigable, non-melting rivers, ravines and gullies, where ice drift is possible. - not less than 0.2 m above the GWW level with a 2% supply and from the highest ice drift horizon, and if there is a grubber on these rivers - at least 1 m above the GWW level with 1% supply;
when crossing navigable and floatable rivers - not less than the values established by the design standards for bridge dimensions on navigable rivers and the basic requirements for the location of bridges.

Crossings of gas pipelines through railway and tram tracks and highways

4.53. * The intersections of gas pipelines with railway and tram tracks, as well as with highways should be provided, as a rule, at an angle of 90 °.
The minimum distance from underground gas pipelines at their intersection by tram and railway tracks should be taken:
to bridges, pipes, tunnels and pedestrian bridges and tunnels (with a large crowd of people) on railways - 30 m;
to the switches (the beginning of the wits, the tail of the crosses, the points of connection to the rails of the suction cables) - 3 m for tram tracks and 10 m for the railways;
to the overhead supports - 3 m.
Reduction of the indicated distances is allowed by agreement with the organizations in charge of the crossed structures.
The need to install identification posts (signs) and their design at the crossings of gas pipelines through railways the general network is decided by agreement with the Ministry of Railways of Russia.

4.54. * The laying of underground gas pipelines of all pressures at intersections with railway and tram tracks, highways of categories I, II and III, as well as high-speed roads within the city, main streets and roads of general city significance should be provided in steel cases.
The need to install cases on gas pipelines at the intersection of main streets and regional roads, freight roads, as well as streets and local roads is decided by the design organization, depending on the traffic intensity. In this case, it is allowed to provide for non-metallic cases that meet the conditions of strength and durability.
The ends of the cases must be sealed. At one end of the case, a control tube should be provided that goes under the protective device, and on inter-settlement gas pipelines - an exhaust plug with a sampling device, brought out at a distance of at least 50 m from the edge of the subgrade.
In the annular space of the case, it is allowed to lay an operational communication cable, telemechanics, telephone, drainage cable of electrical protection intended for servicing the gas supply system.

4.55. * The ends of the case should be taken out at a distance, m, not less:
from the extreme drainage structure of the railway subgrade (ditch, ditch, reserve) - 3;
from the extreme rail of the railway track - 10; and from the path of an industrial enterprise - 3;
from the outer rail of the tramway track - 2;
from the edge of the carriageway of streets - 2;
from the edge of the carriageway of highways - 3.5.
In all cases, the ends of the cases should be brought out of the bottom of the embankment at a distance of at least 2 m.

4.56. * The depth of laying the gas pipeline under railway and tram tracks and highways should be taken depending on the method of production construction works and the nature of the soil in order to ensure traffic safety.
The minimum depth of laying the gas pipeline to the top of the case from the foot of the rail or top of the coating at zero marks and recesses, and if there is an embankment from the foot of the embankment, it should be provided, m:
under the railways of the general network - 2.0 (from the bottom of the drainage structures - 1.5), and when performing work by the puncture method - 2.5;
under tram tracks, industrial railways and highways:
1.0 - in the production of work open way;
1.5 - when performing work by punching shear, horizontal drilling or shield penetration:
2.5 - when performing work by the puncture method.
At the same time, at the intersections of railways of the common network, the depth of laying the gas pipeline in sections outside the case at a distance of 50 m in both directions from the ground bed should be taken at least 2.10 m from the ground surface to the top of the gas pipeline.
When arranging crossings under the railways of a common network in heaving soils for gas pipelines with a temperature of the transported gas in winter time above 5 ° C, their minimum laying depth should be checked in order to comply with the conditions under which the effect of heat release on the uniformity of frost heaving of the soil is excluded. If it is impossible to ensure the specified temperature regime, replacement of heaving soil or other design solutions should be envisaged.
The thickness of the walls of the gas pipeline pipes at the crossings through the railways of the common network must be taken 2-3 mm more than the calculated one, and for these sections, in all cases, a very reinforced type of insulating coating should be provided.

4.57. The height of the overhead gas pipelines laying at the intersections with electrified and non-electrified railways, tramways, highways, trolleybus contact network should be taken in accordance with the requirements of SNiP II-89-80.

Building regulations

Section 5. Placement of hydraulic fracturing. Placement of the GRU. Equipment for hydraulic fracturing and GRU. Placement of combined regulators. Section 10. Eternally frozen soils. Undermined territories. Seismic areas. Areas with heaving, subsidence and swollen soils.

The use of "blue fuel" for domestic needs has a significant drawback - the complexity in the implementation of delivery and storage. This drawback was overcome thanks to a gas holder - a "vat" for liquefied hydrocarbon gas.

Arrangement of autonomous gasification is subject to a set of requirements and standards. First of all, it is necessary to assess the parameters of the site, to determine the distance from the gas tank to the residential building, the nearest buildings and communications.

The main gasification of remote settlements has not yet been completed, and many settlements are left without a convenient "blue fuel". Alternative solution centralized gas supply - installation of a gas tank and arrangement of an autonomous network.

Gas holder is a monolithic container for storing natural gas. Structurally, the reservoir is made in the form of a tank with a neck. In the upper part there are elements that control the pressure and the remaining fuel.

Undoubtedly, the operation of any gas equipment is associated with a certain risk, therefore, a number of requirements are imposed on the organization, on the location and installation technology of the gas tank.

In the galgozer, the liquefied gas is gradually converted into steam, the propane-butane composition enters the reactor and gains the required pressure. Through the gas pipeline "blue fuel" is supplied to consumers

The site for the installation of a gas storage facility is assessed according to the following criteria:

relief;
the composition of the underlying and enclosing ground layers and the proximity of groundwater;
availability of water intake points, residential, utility and public premises.

Relief. The area selected for surface mounting must be flat. This requirement is especially important when installing ground modifications - installation on a slope is prohibited.

Priming. It is permissible to locate a gas storage facility in soil massifs with different moisture content. The convenience of carrying out land works and the choice of the type of gasholder will depend on the physical and mechanical properties of rocks.

If there is no risk of valve flooding, models without a high neck can be used. Alternatively, a tank is suitable, where the bends are attached to welded-in nozzles 12 cm long - this "safety" height, if there are doubts about flooding.

For places with "high" groundwater designs with an elongated throat have been developed to protect the reinforcement. Due to the protection device, the operation of the gas tank is stable and efficient

Water is an excellent conductor of heat waves, and the process of evaporation of the propane-butane mixture determines the temperature of the medium. The higher the indicator, the more intensive the process. Installation work in low-moisture rocks is easier, but the environment for the normal operation of the gasholder is less favorable.

Lumpy soil can be dangerous, especially if its components are poorly rounded, i.e. with sharp edges. Boulders, pebbles and coarse gravel complicate the installation of the equipment, and the mass of gravel and gruss puts additional stress on the pipeline.

In most cases, a pit is developed for the installation, which is recommended to be filled with a river or quarry sand after submersion of the structure.

Proximity to water sources... According to building regulations, the minimum distance from the gas tank to the reservoir (well, well) is 15 m, to the water main is 5 m.

Neighborhood with buildings. Fire-prevention distances from containers with liquefied gas to structures are indicated in paragraph 8.1.6 of the "Gas distribution systems" regulatory document (SNiP 42-01-2002). The next section is devoted to this issue.

It is more practical to place the gas tank closer to the gate for unhindered access of the gas carrier and filling the tank.

The area above the gas storage is a kind of exclusion zone. It is forbidden to equip a place for a barbecue, to install barbecues and other flammable equipment.

In addition, concreting or paving of the site, as well as organizing a parking space and planting trees, is unacceptable.

Fire distance to objects of protection

Definition optimal location for on site depends on the volume of the tank and the method of its installation: underground or surface installation. For each option, strict standards have been determined, the disregard of which is unacceptable for explosive, environmental and fire safety requirements.

Volume - a determining parameter of the remoteness of buildings

The correct choice of volume depends not only on the location of the container on the site, but also on the convenience of use. The volume of the gas tank is selected so that one filling is enough for 1-1.5 years. The volume is calculated based on the area of the house.

According to the norms, 20 liters of "blue fuel" are consumed per year for heating 1 square meter of housing. If gas is used in parallel for cooking, hot water supply, then the indicator increases to 27 l / year.

Knowing the dimensions of the house and the needs of the residents, it is not difficult to carry out the calculation. For example, a gas tank with a volume of 4000 liters or more is suitable for a cottage of 200 square meters. An alternative option is to determine the size of the tank according to the capacity of the boiler plant. For example, a 50 W boiler will require a 5000 liter gas tank.

It should be noted that the maximum filling of the gas storage is 85% of the total displacement, and the minimum fuel residue is 5%. Therefore, when choosing a gas tank, a certain margin must be taken into account (plus 10-15%)

Standards for the location of underground gas tanks

For year-round operation in cold winters, it is necessary to choose an underground "storage". The module is immersed below the soil freezing line, which supports natural gas evaporation when sub-zero temperature outside.

General standards for distance from underground tanks of any volume:

sports grounds, children's complexes, garages - 10 m;
underground heating pipeline, sewerage - 3.5 m;
external communications not included in the group of backup equipment - 5 m;
the edge of the roadway is not fast road for 1-2 lanes - 5 m;
motorways and highways with 3 or more lanes - 10 m;
access tram track, industrial railway tracks - 10 m.

The distance to buildings for various purposes is determined by the capacity of the liquefied gas tank. The gradation of values is provided for "storages" with a volume of up to 10 cubic meters, 10-20 cubic meters, 20-50 cubic meters.

Distance to residential buildings for monoblock tanks up to 10 cubic meters - 10 m, up to 20 cubic meters - 15 m, up to 50 cubic meters - 20 m.The distance of public buildings - 15, 20 and 30 m, respectively

Various standards are provided for with respect to industrial premises... The range of distances is 8-15 m. The distance to the railway tracks is also regulated general purpose- 20-30 m depending on the displacement of the gas tank.

SNiP allows a reduction in the interval between a residential building and a "gas vat" by 50%. However, such a decision must be based on technical reasons and agreed with the local gas distribution unit.

The distance should be counted from the nearest point of the foundation to the wall of the gas holder. This rule is not specified in regulatory documents, but is practiced when installing a gas storage

In addition to the requirements for the distance between the gas tank and various facilities, there is a list of rules for regulating the underground "storage":

installation depth - at least 60 cm from the upper wall of the tank to the ground surface;
the distance between underground gas tanks is at least 1 m;
there must be free access to the neck and fittings of the container.

Regardless of the capacity, the underground tank is mounted on a foundation - a concrete slab. The base prevents the reservoir from "floating" in the event of ground movements.

Subtleties of mounting a surface tank

The use of a ground gas tank has several significant advantages: simplicity, speed of installation and a decrease in the intensity of metal corrosion. Local damages are easy to detect and repair in a timely manner.

However, this type of equipment is rarely used to supply gas to a private house. The main reason is a significant decrease in system performance in winter. At sub-zero temperatures (below -0.5 ° C), liquefied gas does not evaporate naturally.

To maintain the process, it is required to equip the gasholder with an evaporator. With an insignificant consumption of "blue fuel", capital investments in gasification will pay off for a very long time. Due to the ground location, the requirements for fire-prevention distances from the gas storage to buildings and other facilities are more stringent.

The minimum distances are given separately for three groups of standard sizes: up to 5 cubic meters, from 5 to 10 cubic meters and tanks with a capacity of 10-20 cubic meters. The "+" sign denotes the distance from the gas tank to real estate objects that are not serviced by the unit

Additional restrictions on the location of the ground "gas vat":

general railways - 25-30-40 m in accordance with the volume;
local tram and railway tracks - 20 m;
roads of IV-V category (1-2 lanes) - 10 m, I-III categories (from 3 lanes) - 20 m.

For safety reasons, a kind of open hood is installed above the gas tank, which protects the module from direct sunlight and precipitation. Overheating of the tank or lightning can lead to an explosion, and rain and snow can lead to accelerated corrosion.

Placement of mobile gas storages

Mini-gasholder - roomy gas bottle volume up to 500 cubic meters, equipped with the required safe operation fittings: reducer, level gauge and safety valves. The equipment is compact in size, for example, the parameters of a 480 l tank are: length - 2 m, diameter - 60 cm.

At correct use its service life is the same as that of a full-size gas tank. The mini-model is stationary or mounted on a trailer, which ensures the mobility of the gas storage.

Refueling is greatly simplified, since it becomes possible both at the location and at the gas station.

An important advantage of the mini-gasholder is the absence of strict requirements for its placement. Work on connecting the tank to gas system at home take about two hours

According to SP 63.13330 of 2011, a minimum distance from a house to a small gas tank is permissible, namely, placement directly against the wall. The remoteness of the equipment from other objects of protection is not specified.

Mini-gas tanks are in demand to provide autonomous gasification of premises with relatively low or seasonal fuel consumption: country houses, heating of cafes, hotels. The reservoir is often used as a back-up source of gas in case of interruptions to the centralized line.

Set of requirements for laying a gas pipeline

Certain standardized norms are also imposed on the arrangement of the gas pipeline from the gas tank to the house. Gas is supplied to the premises through an underground pipeline through the basement inlet. Safety rules prohibit the introduction of the gas pipeline into the house by an underground route.

Scheme of entering the pipe line into the house. Legend: 1 - gas tank, 2 - concrete base plate, 3 - condenser collector, 4 - underground pipeline, 5 - basement input unit

General requirements for laying a gas pipeline at the "gasholder-house" section:

track depth - at least 1.7 m;
the width of the trench - there are no strict restrictions, the value depends on the footage of the gas pipeline and the quality of the soil;
the minimum slope towards the condensate trap is 1 cm per 1 m (no more than 5 °), the maximum slope is 100 mm;
distance from the highway to the foundations of buildings - 2 m or more;
distance to parallel placed communications - 1 m, with a cross arrangement - 2 m in height.

The underground gas pipeline is assembled from polyethylene pipes high density with nitrile content. Ground line - steel gas pipes. The polymer pipeline should not reach the point where the soil temperature drops to -20 ° C or less.

The transition of the polyethylene-steel gas pipeline is carried out at a depth of 40 cm. The site must be protected from electrochemical corrosion- used polymer coating to a height above ground level

Gas tank operation safety

Despite all the advantages of autonomous gasification, many consumers are frightened off by the thought of the risks of storing a flammable substance on a site near a residential building.

To ensure safety, it is not enough to maintain the required distances during installation; it is necessary to comply with all conditions for refueling, operation and maintenance of the gas-holder installation.

Operating rules:

Preservation of an inexhaustible supply - about ¼ of the volume. When all the fuel is used, a vacuum is formed in the container; during further refueling in violation of the technology, an explosion is possible.
Filling the gas tank exclusively by a specialized company. Minor savings on the services of unskilled gas workers can lead to fire.
Monitoring the operation of the safety valve. Timely troubleshooting will prevent an emergency.
Avoiding gas leaks. The leakage of "blue fuel" is the most dangerous - the propane-butane mixture "spreads" downward, as it is heavier than air.

The likelihood of fuel leakage exists in case of damage to the tank, malfunction of the fittings, improper repair or refueling, as well as in the event of a leaky connection of the elements of the gas distribution system.

Safety of operation and refueling is ensured by the following equipment: 1 - drainage of residues from the condenser collector, 2 - safety valve, 3 - reducer, 4 - gas pipeline, 5 - level gauge - measurement of tank filling, 6 - filling valve, 7 - gas vapor extraction valve, 8 - pressure gauge, 9 - liquid gas sampling valve

TO mandatory measures Precautions include the use of lightning protection and grounding. It is unacceptable to carry out welding work or ignite a fire near the gas tank.

He will acquaint you with the standard prices for the installation of a gas tank, in which all items of upcoming costs are analyzed in detail and recommendations for possible savings are given.

Conclusions and useful video on the topic

Video report on the operation of the installed gas tank for servicing a private house. In the review in question on the equipment of the equipment that ensures the safety of use, and the permissible distances to objects on the site:

One of the main requirements for the safe operation of the gas tank is compliance with the standardized distances from the residential building and other facilities to the gas storage facility. Under unsatisfied conditions of the site itself, some condescension regarding the boundary distances is permissible. It is better to entrust the assessment of the installation site and the installation to a specialized company.

Tell us about how you chose a place on your personal site for installing a gas tank. It is possible that you have useful information that will be useful to site visitors. Please write your comments in the block below, post a photo on the topic of the article, ask questions.

Hello dear readers. If there is a gas pipe in the kitchen, special standards are imposed on it. These are the distances from surfaces and from household appliances... Competent installation of gas pipes throughout the apartment is also important.

Apartment standards

The gas pipeline is installed in the apartment according to a previously developed plan. But even before that, it is necessary to decide on the operating conditions of the gas pipeline. So, if gas pmi 2013 units function in the kitchen, it will become an obligatory element for them. Its presence in the boiler room is a guarantee of heat throughout the house.

For the positions of the gas pipe in the kitchen and apartment, the norms are as follows:

No installation in living quarters and ventilation shafts.
Intersection with the opening for windows and doors is unacceptable.
Laying in hard-to-reach areas is prohibited. For example, behind a designer finish on the wall. Gas equipment must be provided with quick and easy access in case of malfunctions.
The minimum distance of the gas pipe from the floor is 2 m.
When using a pipe with thin walls, the length of flexible communication components should not exceed 3 m. The density of connections of network elements is also of great importance.
Installation is allowed only in those rooms where the minimum ceiling height is 220 cm. And these rooms must be well ventilated.
The kitchen should not be provided with ventilation affecting living areas.
Wall and ceiling surfaces those close to gas appliances must have a special coating of non-combustible plaster. If there is no such coating on the wall, it must be insulated from gas appliances with a metal sheet. Its suitable density is 3 mm.

Private house question

To lay in a private house, you also need to know the norms. To begin with, gasification here begins with notifying the local gas organization and the planned work. It provides a technological condition that determines the algorithm for a gas pipeline device. The technical issue is being settled. Personal development for gasification is being created a certain area... Also, an order for a gas pipeline device is issued to the traffic police.

If the neighboring houses are already provided with gas, you only need to connect the pipes at a specific site to the main network. The factor of working pressure is also important here. Its parameter in the main pipes determines the choice of pipes to enter the house.

The preferred gas source determines the gas supply technology: centralized or autonomous.

Also, gas pipelines can go to private houses underground or above it.

And the norms for carrying the pipe to the kitchen in a private house are identical to the points in the housing issue.

Installation standards

The rules and regulations for installing a gas pipe in the kitchen are as follows:

The main valve is closed before work.
The gas pipeline is blown out if the pipe is moved.
Pipe-to-wall fasteners are provided. These are special clamps and brackets.

The type of fastener is determined by the length and diameter of the pipes.

If there are electrical cables near the pipes, then the minimum distance here should be up to 25 cm. electrical panel 50 cm.
Location near cooling equipment is unacceptable. In this matter, the owners often make mistakes. Can the refrigerator be placed next to a gas pipe? It is forbidden. So the radiator of the refrigerator can quickly overheat, and the device itself will become malfunctioning.
The minimum distance from the gas pipe to the stove is formed as follows: a branch to it goes only on the line of the connecting pipe. The shut-off valve is placed 150 cm from the floor and 20 cm from the side of the stove. The installation of the cash advance businesses slab is carried out using a heat-resistant flexible sleeve.
Work should be carried out in a room with stable ventilation and natural light.
The minimum ceiling height is 220 cm.
The slab and the opposite wall must be separated by at least 100 cm.
Surfaces near pipes and slabs are covered with a fire-resistant material - plaster.
Pipes are bent so that the slab is 7-8 cm from the walls.
The stove is used only in the kitchen, which has a fence from the corridor: a wall or partition and a door.
The height of the gas pipe from the floor is at least 2 m.

Another important aspect is maximum length certified gas hoses. In Russia, it has no restrictions. In Europe it is 2 m. We can have items from 2 to payday loans gallatin tn 10 m and more. It all depends on the tasks of the owners and the working conditions.

Transfer aspects

When a gas pipe interferes in the kitchen, it can be moved or masked. In the first case, you must strictly observe regulatory requirements transferring the gas pipe to the kitchen.

The same installation criteria are met here:

The maximum length of flexible elements is 3 m.

The norms of the gas pipe in the kitchen in height from the floor are 2 m (minimum).

The sections of the connection must be rigid.

The pipeline itself should be painted.

Areas of intersection of the system with the walls are "packed" - a special case is used.

When working with a gas transfer network, block the gas before work.

You need to decide on your tasks. It is better to outline them schematically and show them to specialists.

And the decision to cut or relocate the pipe in the kitchen is a prerogative. special services... The owner can only indicate his intention. And the masters can approve or prohibit it. They will tell you what the price of such an upgrade is, where is the best financial assistance grants to start and who to contact.

The algorithm of actions in solving these problems is as follows:

Contacting gas company on the registration site. Create a statement about the desired changes.
On the basis of the application, the masters arrive. They inspect the conditions, conduct a check and carry out the necessary calculations so as not to violate the norms for the location of the gas pipe in the kitchen.
Creation of an estimate. When ready plan is in the hands of the customer, other formalities are settled, the customer pays for the service. The plan is finalized if necessary.

If the work according to the customer's scenario is not safe, or the estimate does not suit him, he can disguise the pipe. For example, purchase a special elegant box

If there are no dilemmas with the estimate, then within 5 days, sow its approval, the masters arrive at the customer. Prior to their visit, the client can:

Contact them and inquire if they need any consumables and immediately resolve this issue,
Free up the area for dismantling old products and installing new ones. Workers should have no problem accessing the network.
Protect all valuables, appliances and surfaces. A tarpaulin or similar material is used for protection. After all, the work is very dusty.
The valve is blocked. Gas should not go to pipes during this period. Connecting components is easier with a siphon line.

The work itself goes like this:

To remove gas residues and debris, the pipes are blown (after blocking the gas).
An unnecessary component of the system is removed.
The resulting hole is plugged.
A hole is made at the installation site of the new elements.
A new structure and other elements, if any in the project, are welded here.
The crane is being mounted. The connecting sections are sealed with tow.
The stove is connected. The norm is observed at what distance from the gas pipe the stove can be placed. This aspect has already been considered here (the crane is at the level of the connecting pipe, the minimum distance from the side of the plate is 20 cm). In the case of a fixed annuity interest rate variation at the top, the shut-off valve is placed on the downstream side of the gas appliance. Distance from the floor: 150-160 cm. The gas riser is at least 20 cm away from the tap.
An act of completed works is formed and signed.

The question of disguise

Is it possible to hide a gas pipe when there is no way to transfer it? It is possible and necessary. There are special boxes for sale.

You can come up with your own plan for how to hide the gas pipe, and at the same time the counter in the kitchen.

If you have absolutely no idea how to effectively and harmoniously implement this, see the photo "How to hide gas pipes in the kitchen?"

Conclusion

It is necessary to install gas pipes in the apartment and in the kitchen in particular in accordance with the current regulations. This is both the observance of the law and the guarantee of your safety.