Installation of gas pipes in the apartment: the rules of connection, isolation and packing technology

At the stage of construction of the gas system in the house is designed as a single unit for all apartments. In the new apartment buildings often have a common system, in it all the tenants are connected per-apartment individually. Internal repairs as often require changes to the original draft. In this case, the installation of gas pipes in the apartment or private house belongs to the high-risk work. To prevent an emergency or at the stage of execution of works, or during operation, requires fulfillment of all regulatory requirements from design to verify the quality of the connection elements system.

Gazomontazhnye work in the apartment

Features of the installation work, gas pipes in apartment buildings

The beginning of works is associated with the response to the question, the work of the equipment will serve the system. After that only specialists have the right to carry out design work to meet the wishes of the customer and the actual conditions of the apartment layout.

Important! Make changes to an existing apartment building gas supply system spontaneously banned at the legislative level.

Customer must provide, in addition to technical documentation, the following information:

that will be connected to the pipeline: a gas stove, water heater, individual heating system, water heating devices. Specify the number and provided technical passport;
hypothesis of the location of all connected devices;
information about changes in the pipeline in the apartments of neighbors, the depth proleganiya highway;
suggestions about the level of the installation and the availability of all components of elements (access protection for children, animals).

If you are going to carry out the installation of gas pipes in a private apartment should be remembered that:

gas pipes in living rooms are not set;
zadekorirovat any conduit structure not amenable to rapid dismantling impossible. To this should always be freely available;
the ventilation system must be common to all apartments. In the room with the gas pipes provides autonomous;
in the placement of devices necessary to provide fire protection measures, for example, non-flammable wall coating with plaster.

SNIP, the formation of the project, final documentation

For apartment buildings stringent rules installation of gas equipment:

gas pipeline systems must not interfere with the door, window openings, ventilation shafts and highways;
pipes are laid at a height of not less than 2 m from the pitch level;
Ceiling height with equipment more than 2.2 m;
length of flexible pipe sections is limited;
distance between the gas and any type of regulated electrical installation regulations of electric equipment;
access not only to individual sites but to the entire system must be free, for repairs, maintenance work;
between a room with appliances operating on gas and other premises must be a barrier in the form of a door or any partition;
room has a window with fortochnoy or venting mode, the existing ventilation;
type pipe fastenings (hook, bracket, hose clamp, suspension) and the distance between the fastening points determined SNIP.

Note! If the system is installed under the liquefied gas, it provides bias of 3 degrees.

Project organization starts to work if given a package of documents. he formed

of the notarized copy of the technical passport of an apartment;
expert report, drawn up an act of chimney of gorgaza;
permission for connection of architectural design; all technical documentation for gas appliances (conformity certificates, data sheets).

But you can not independently collect documents and the start enable it to carry out a special bureau. Then the customer receives a finished project with all approvals, as well as estimates, the cost. In addition, it is necessary to issue the contract to conduct technical supervision.

Upon receipt of the project carried out installation work. The last stage of the commissioning of a new gas pipeline consists of the following steps:

Create a package of executive and technical documentation.
To check the correctness and quality of the Commission's work in the customer, artist works, representatives gorgaza.
Seal the gas meter.

gorgaza representatives are entitled continuous monitoring of the operation of gas equipment.

Oplombirovka counter representative gorgaza

Which to choose the pipe

Selection of tubes for a gas pipeline in residential buildings of any type and is bounded GOSTs taken into consideration gas barrier property, resistance to mechanical damage. It can be steel or copper pipes. Internal wiring between components in some instances be permitted to exercise through the use of reinforced tubes of rubber or vulcanized certified flexible hoses.

The pipeline inside the house refers to a system with a pressure up to 0.05 Pa, which is classified as low. Such systems are served by general purpose pipes relating to electrically welded. When choosing a pipe guided by the parameters:

outer and conditioned (inner) diameter. This value depends on the characteristics of the project, rather than on the type of pipe;
selection of the optimal type of connection, which is considered to be welded. For this fit, and copper, and steel pipes. The installation locations of valves, gas and instrumentation be flanged, threaded connection, docking socket;
Copper pipes have connectivity via a press-fitting;
copper products more expensive but have better corrosion performance over steel. They have a more aesthetic appearance even in the unpainted state.

Important! Plastic pipes indoors to establish not only illegally but also dangerous: the connection elements system of gas pipes shrinkage of the building may be not tight, the action of ultraviolet radiation breaks plastic.

The diameter of the pipes

The recommended parameters are presented in Table pipes

The name of the everyday	designation	External diameter, mm	Inner diameter, mm
Inch and a quarter	1 1/4	42,3	32
Whitworth	1	33,5	25
three-quarter	3/4	26,8	20
half-inch	1/2	21,3	15

These values are suitable for low pressure gas systems, and the mean for installation in a private home and apartment.

For private homes pipe diameter is calculated taking into account such indicators:

the total amount of gas consumption;
the number of devices;
type heating system;
the total building area.

For safe installation of the pipeline

Installation work is carried out only by trained and coordinated the project experts.

Safety measures before starting work:

remove any pockets of open fire;
turn off the electric heating equipment;
install a warning sign of the repair work to the gas;
block access to the gas station of work;
remove from the pipes of gas residues. Blowing in ventilation ducts inside the premises is prohibited.

mount the stages depend on the specifics of the project, but the main stand:

grinder system is cut in the appropriate places;
cut in the input and output of gas are put into the flat plug;
cut off some parts are welded and others as provided by the project;
if necessary, is done with a drill hole in the pipes, which are welded to individual elements of the system;
Installation cranes, the junction is sealed on the thread tow, paronitovye gasket, special ribbons.

Only after the formation of the entire network can be connected gas equipment, remove the plug and connect to the system of the building.

Security measures after work:

provide a ventilated area;
if fundamental changes were made to the gas system of an apartment (and not just a piece of pipe was replaced), a gas pipeline blown. Here it is blown from the air and gas samples are taken on the content of oxygen therein. This is done as long as the oxygen content rate becomes equal to or lower than 1%;
check all joints for leaks, this is normally done by using a soapy solution, but professionals use special instruments.

Important! General safety requirement - after the installation of gas pipes are painted in a color that it does not merge with the color of the walls. From a design standpoint uncomfortable, but practical in an emergency.

Tips from the experts

The length of the flexible tubing so that they naturally sag and allowed to move gas equipment if necessary. However, they do not hang down to the floor, not strained, do not interfere with other communications.
If necessary, rotate the pipe, it is cut and set stationary stub. Further, the pipe is drilled hole, and it is welded new section.
Replacing gas stove are recorded ratios multistory houses the internal volume of the room: 2 hotplates - 8 m3, 3 hob - 12 m3, 4 - 15 m3. The studio apartments without a dedicated room for the kitchen, these figures are increased by 2 times. Therefore, just change one plate to the other is impossible: this issue requires review and approval by the relevant authorities.
If the gas pipes are routed through walls, they must be enclosed in a case. Between the pipeline and the pouch is sealed all special insulation space.
The gas pipe can be bent in view of the fact that the radius of curvature of at least 2.5 pipe diameters.

In view of the increased danger of the inside of the house any work on the gas supply system, the solution of this problem must be provided in the art. They execute the order with all the regulatory requirements.