Laying the line, moving the gas pipe and installing the stove on your own is prohibited in the redistribution of housing. Without the permission of the special department, it is only allowed to move the plate within a limited range. Gas workers with appropriate training are invited to replace the gas pipeline and rearrange the communication sections.
- Standards and rules for the placement of gas pipes in an apartment
- Reasons for transferring gas pipes
- Redevelopment
- Major overhaul
- Alteration of gas distribution
- Preparatory stage
- General requirements for gas supply
- Getting permission
- Work order
- Tools and materials
- Dismantling the old pipe
- Change options
- Work process
- Gas riser replacement
- Features of the transfer in the kitchen
- Checking the entire system for leaks and performance
- Coordination of work on the transfer of the gas pipe
Standards and rules for the placement of gas pipes in an apartment
The rules for arranging a gas pipeline in housing are prescribed in the text of SNiP 2.04.08 - 1987.
Principles for the placement of pipeline sections:
- wall decoration made of combustible materials is protected by plaster or metal panels;
- it is impossible to dismantle the shut-off valve from the pipe, it is located in an accessible place;
- the gas pipeline is painted in a contrasting color with the wall with waterproof compounds;
- laying in the thickness of walls and horizontal ceilings is done using a case with a shock-absorbing insert.
Devices and installations are connected to the gas pipeline with rigid fasteners. The conclusion about the possibility of reworking the gas distribution is given by a technician.
Reasons for transferring gas pipes
The official program of government agencies allows capital repairs and replacement of gas pipe risers in old apartment buildings free of charge.
Reasons for work:
- gas release was detected when the tap is closed (repairs are being done in the apartment);
- damage to pipes and welds is visually distinguished;
- the service life has expired (for houses built more than 50 years ago).
Utilities report on the planned replacement of the supply pipeline, while the organization develops a work schedule. Residents give access to equipment within designated periods.
Do not interfere with the repair, because foremen work with gas pipelines that are in common use and are on the balance sheet of a communal organization.
Redevelopment
A common reason for reworking the gas distribution in an apartment is the purchase of a kitchen unit, where there is a built-in heated panel or oven. For installation, it is necessary to shorten or lengthen the pipe sections in order to supply the gas to the installation site.
It is recommended that you contact a licensed design firm to draw up a redevelopment plan, move equipment and lay a gas pipeline from the general input. In apartments, it is forbidden to move risers, plates, pipelines into rooms. Coordination is also needed to combine the living room and kitchen.
Major overhaul
Before the start of the repair, the housing and communal services inform the tenants about the inspection and the beginning of the repair. Dismantling and installation work causes discomfort for those living in the apartment. Residents are worried that professionals may damage furniture or finishes and are trying to negotiate additional agreements with contractors.
The organization invited to redesign the gas pipeline is not obliged to draw up an agreement with the owners of each apartment.Owners give access to the replacement site as part of a utility replacement program. Residents have no right to refuse, so as not to provoke further emergencies. In the absence of assistance, gas workers turn off the common valve on the riser.
Alteration of gas distribution
Sometimes a gas pipe runs in place of the hinge of kitchen cabinets. The owners cut the back walls, make holes in the furniture, and move the cabinet away from the wall using bar spacers. Such actions entail a reduction in the kitchen space. Experts can digest the line at a different height from the floor so that the installation of furniture takes place without obstacles.
The installation area of the sink may coincide with the installation location of the gas pipeline. Technical conditions (TU) do not allow laying a pipe with gas under the sink, therefore the gas pipeline rises above the cabinets, and a vertical section is made above the stove.
Preparatory stage
The flexible hose also cannot be changed by yourself. The organization is responsible for the extension, cutting and transfer of the gas pipe in the kitchen. The sequence and other features of the work should be known by the landlord in order to prevent illegal actions.
Usually 2 people work, who begin the rearrangement a week after the project is completed and approval is received. By the beginning of the work, there is already information about the sites that will be refurbished. There is a diagram of a new arrangement of additional gas appliances, for example, a heating column.
General requirements for gas supply
Pipes are installed only horizontally or vertically, rotation is allowed at 90 °. Diagonal, curved arc is not permitted.
Rules for conducting the supply line:
- internal wiring is carried out in an open way, decorative elements are made removable and with identification markings;
- it is prohibited to conduct through ventilation risers, window and door openings;
- rigid elements are used, the length of flexible hoses for connecting plates cannot exceed 3 m;
- pipes are connected by welding, detachable contacts of two segments are prohibited.
Work begins by shutting off a valve on a house or a specific area. The service provider is responsible for interfering with the gas supply.
Getting permission
For illegal redevelopment or connection of plates, columns, general administrative and criminal punishment follows, depending on the situation. The minimum fine is 2 thousand rubles, and if an accident occurs due to arbitrariness or people suffer, the culprit faces up to 5 years in prison.
The owner offers his own version of the pipe relocation, and the technicians of their utilities allow or not the specified redevelopment. To call a specialist, the owner contacts the office at the place of registration. Sometimes it is required to attract additional firms, which will be communicated by the employees of the department.
Work order
If an oven or stove is connected, the owner purchases a bellows sleeve at his own expense. The craftsmen bring metal pipes with them, tk. their cost is already in the contractual estimate. The kitchen is freed from unnecessary furniture and utensils in order to avoid hindrances in work.
The owner has the right to demand the provision of certificates of the gas organization. The workers' qualifications are checked and only after that they can start re-equipping the gas pipeline.
Tools and materials
Cutting and welding of gas pipeline sections is carried out using special devices, units and tools that the craftsmen bring with them. The work is carried out in accordance with safety requirements.
For the gas main, the types of collectors are used:
- copper;
- steel;
- polypropylene.
The materials are distinguished by their strength and required properties, ensure tightness and prevent leakage. Steel pipes are taken of a low-carbon variety St2, St4, which can withstand excess pressure. For major re-equipment, shut-off valves made of gray cast iron, steel, bronze and brass are used.
Dismantling the old pipe
The pipeline is blown out at the working area after closing the common valve on the supply pipe in order to remove the remaining gas from the collector. When transferring, it is required to cut off a piece of the pipeline and weld a new section in the required direction. To remove an unnecessary section, the master uses a welding, pipe cutter or grinder. Previously, a metal file was used, but in modern conditions it is long and ineffective.
The area is left where the shut-off valves are located at the entrance to the apartment. This section cannot be dismantled, the gas valve can be moved if the line is severely damaged in this place.
Change options
The area near the pipes must be open so that residents are aware of the leak in time and take action. It is forbidden to embed the pipes into the wall and close them tightly with plaster or other materials.
Placed to fix the pipe:
- crimping clamps;
- hooks;
- mounting brackets;
- studs or pendants.
If electrical wiring passes nearby, it is located at least 25 centimeters. The electrical distribution board is installed no closer than 0.5 meters from the gas pipeline. For the liquefied gas main, a slope of 3 ° from the entrance is provided. If there is a counter, the slope is counted from this place.
Work process
Rubber hoses or rubber-fabric products are used less often, because bellows adapters are gaining popularity.
Actions are performed:
- The hole is welded after cutting the section.
- A hole is drilled at the point of joining a new section in the pipeline using a power tool and a drill with a metal tip.
- A piece of pipe is connected by welding, at the end, if necessary, a crane is mounted.
When connecting the tap, tow or sealant is used, a sealing tape is used. After that, the connection to the gas appliance is made with a flexible hose. The gas leak is checked with a soapy solution.
Gas riser replacement
During the procedure, there should be no strangers and smokers in the workplace. Before starting the replacement, the specialist posts a warning sign about the hazardous nature of the work. Simultaneous replacement of the riser and wiring in the apartment is not allowed, because an explosion can occur due to the spark.
The type of riser welding is selected depending on the wall thickness of the line. Most often, steel elements with a diameter of 21.3 - 42.3 mm, with a wall thickness of 4 mm, are used for feeding, which are connected by gas or electric welding.
Features of the transfer in the kitchen
Gas pipes are located so that after installation there is a possibility of their repair, preventive inspection or replacement. An injection into the pipe is carried out so that the presence of oxygen in the gas mixture during chemical analysis is no more than 1%.
Gas must come out of the pipeline evenly, without jerks, jolts and pops. The check is carried out by purging the system, while making sure that during the process the gas does not enter the atmosphere of the room, the ventilation shaft or the chimney. Before the first start-up, window openings are opened, and efficient ventilation of the kitchen is ensured.
Checking the entire system for leaks and performance
The test is done after the installation is completed, the tightness and operability are diagnosed. First, the general view of the system is examined, the connection is checked, the screwing of the fittings, and the compliance with the design scheme. Gas evolution is detected at joints and assemblies.
A soapy solution is used, which is used to coat the joints of pipes with a hose, the interface of flexible liners and a stove or oven. If bubbles form, the assembly requires revision and re-diagnosis. The master draws up an act of work performed with a description of the features, changes are entered into the technical passport.
Coordination of work on the transfer of the gas pipe
The owner contacts the employees of the gas service, explains the situation and receives advice. The application is drawn up and submitted in person when visiting the office of the organization. Based on this document, the firm sends a specialist to discuss the details.
The specialist examines the system, correlates the client's wishes with the actual situation, and answers questions.
Sometimes the plans of the customer are violated, because his wishes go against the safety measures.
The organization draws up an estimate for the work and a plan for re-equipping the gas pipeline in the kitchen. The customer pays for the service, the company agrees on the start of work.
