Replacing a gas hose with your own hands: rules for installation work

There are a number of good reasons for replacing a gas hose, including simple wear and tear of the hose. According to technical standards, a gas service worker must be called to perform this work. But what to do if the need arises in a country house, for example, where you can’t hope for a prompt arrival from gas workers? Act on your own!

However, first you need to understand the technological nuances according to which this work is performed. We will tell you how to replace a gas hose with your own hands. Using the information, you can competently remove the old hose and install a new one, without fear for the safety of your family and neighbors.

We have described in detail all types of hoses approved for use in the gas industry. As an example, the process of installing a new gas stove with a full set of equipment is given. The information presented for consideration will be useful both to those who decided to carry out the replacement themselves and to customers of gas workers’ services.

Choosing a chimney for a gas boiler

Any wall-mounted gas boiler needs a chimney. Depending on the model, this can be either a traditional chimney or a small horizontal chimney that can be led outside directly through the wall of the house.

Photo 4: Installation of a coaxial chimney for a turbocharged boiler

In double-circuit boilers with an open combustion chamber, the combustion process occurs with the help of air from the room in which the heating device is installed. Typically, such models are installed in specially equipped boiler rooms. To remove combustion products, they are connected to traditional chimneys for gas boilers made of ceramic or stainless steel.

Wall-mounted boilers with a closed combustion chamber (turbocharged) use outside air in their operation. It is supplied inside the device through one of the channels of the coaxial chimney. The second channel is used to discharge flue gases into the atmosphere. A coaxial chimney is very easy to install and you can connect a gas boiler to it yourself.

What is a bellows eyeliner and what are its advantages?

A bellows gas hose is a corrugated pipe made of stainless steel. Special fittings are installed at the ends of the hose to create a strong and safe connection. The connection to the pipes and equipment is secured using union nuts made of the same material. To increase the level of tightness, metal or plastic sealing rings are installed at the joint.

As a rule, sealing gaskets are included in the flexible hose kit.

Eyeliner kit

The advantages of a bellows hose over other types of flexible hoses designed for connecting gas equipment are:

• strength and rigidity. According to manufacturers' requests, the service life of the bellows is up to 25 years;
• possibility of correct operation at different temperatures;
• not exposed to direct sunlight;
• ability to withstand high pressure;
• possibility of stretching, and when the length increases to 50%, the strength of the liner does not decrease.

The disadvantages include the cost of the equipment, which is 2–3 times higher than the price of rubber analogues.

Installation

Connecting gas stoves using a flexible hose is carried out according to a standard scheme, which consists of the following steps: a main pipe - a riser - passes through each apartment of a gasified house. A pipe extends from the riser, called a pipe by experts, at the end of which a gas tap is installed. A gas meter is installed between the tap and the outlet, taking into account fuel consumption. The tap section size is usually 1/2, which corresponds to a diameter of 15 mm. One end of the flexible hose is screwed to the tap, making sure to treat the threaded connection with sealant.

The hose must be screwed directly to the tap; there should be no additional connections or unnecessary bends. The use of adapters is allowed only in cases of extreme necessity, when it is not possible to purchase a hose compatible with the outlets of the faucet and stove. In this case, all connections must also be well coated with sealant and, upon completion of installation, checked using soap foam.

If no soap bubbles appeared on the surface when the gas was turned on, then the installation was carried out correctly and the device can be safely used. In addition, when connecting a flexible hose, it is necessary to install paronite gaskets equipped with a metal mesh and included in the hose kit. The mesh will act as a kind of filter and protect the system from possible contamination.

After the hose is connected to the gas tap, it should be screwed to the stove. To do this, there is an inlet pipe on the rear wall of the device, which can be located either perpendicular to the rear wall of the furnace or at a slight angle relative to it. The angular location of the nozzle is more preferable, since it does not allow the hose to bend sharply and allows you to install the slab almost flush to the wall.

Quite often the inlet pipe has a 3/4 thread. In this case, it is necessary to use a fitting - a special adapter with a diameter of 1/2. The hose is connected to the furnace outlet or adapter using a union nut, which is tightened with an open-end wrench. Upon completion of installation, the connection is coated with a sealant, and after it dries, with a soap solution. Then open the gas tap and test the connection for leaks.

The above installation algorithm is purely advisory in nature, since all work on connecting the stove using a gas hose should only be carried out by a gas specialist

If for some reason you have to do the installation yourself, then you should familiarize yourself with some rules that will help you correctly connect the flexible hose, while observing all safety precautions

• It will not be possible to hide the sleeve in the floor or wall of the kitchen: it must be located in a well-accessible place and be in a free state.
• The hose must not be kinked or bent too much. The maximum permissible bending radius of the hose must be greater than the sum of its three diameters.
• Do not paint the gas hose. The paint causes the rubber to dry out excessively and can cause it to quickly crack.
• Hose connection elements and adapters are often made of different metals, which threatens electrolytic processes and damage to metal parts. To prevent such troubles, only compatible metals can be screwed: copper with brass and steel with steel.
• Over-tightening the nuts may cause them to break and require replacement of the entire hose.
• Installation of flexible hoses longer than 4.5 meters is prohibited. If the gas stove is significantly removed from the main tap, the outlet is increased using steel pipes. Any welding work to extend the “vacation” should be carried out after the house is completely disconnected from the gas supply and only by gas service specialists.
• After connecting the flexible hose, a note is made in the gas subscription book with the exact date of installation. This information will help you not miss deadlines and change your sleeve on time.

Installation of gas supply

Installation of the bellows gas hose is carried out in compliance with the following rules:

• it is unacceptable to hide the liner in the wall, since any leak that is not detected as soon as possible can lead to emergencies, damage to property and loss of life;
• Do not install a hose with a large number of kinks;
• condensation on the equipment will help reduce the service life of the liner.

Installation diagram:

1. choosing an installation location in accordance with the recommendations given above;

Optimal connection diagram for a gas stove

1. turning off the gas supply to the premises. To make a temporary shutdown, you can use the tap installed in the apartment, and if it is missing, you need to contact the management company;

Individual gas shut-off valve

1. dismantle the old eyeliner (if any);
2. if the supply line and tap are missing, then before connecting the equipment, it is necessary to cut a thread on the pipe and install a tap that allows you to shut off the gas supply directly in the living room. For example, to troubleshoot equipment;
3. dielectric installation;
4. A flexible hose is connected to the tap. As a rule, in this situation, the “nut” connection method is used;

When connecting the liner, special attention is paid to installing the sealing gasket. A connection without a gasket will not be completely sealed

To increase the tightness, you can additionally use FUM tape or other similar material.

1. connecting the supply to gas equipment using an o-ring. All nuts and fittings must be fixed using an open-end wrench without unnecessary effort. Even slight overtightening can lead to damage to the seal and rapid depressurization;

Connecting the liner to the equipment

1. examination. To identify a leak, you can use a soap solution and an ordinary brush (sponge). If soap bubbles appear on the surface when applying the solution, then the connection is not airtight.

Leak detection with soap emulsion

How to connect a gas stove yourself, watch the video.

If you cannot install the equipment yourself, it is recommended to contact gas service specialists. Replacing the eyeliner will cost approximately 300 - 500 rubles.

Installation requirements

Natural gas is an explosive gas, so the requirements for the premises must be strictly observed. In the room it is necessary to provide:

• the presence of a ventilation duct to remove combustion products;
• the presence of a window with an area of ​​0.03 m2 per 1 m2 of room, door width - 80 cm;
• the ceiling height must be at least 2.5 m, the room volume must be at least 15 m2;
• the chimney is in accordance with the standards, the pipe cross-section is selected according to the boiler power;
• the presence of a ventilation window in the door or wall with a ventilation grille of 8 cm2 per 1 kilowatt of device power;
• fire resistance of walls - 0.75 hours;
• no furniture nearby, unobstructed access to the device;
• an expansion tank must be installed at the highest point of the heating system;
• installation of a gas analyzer that is capable of blocking the access of gas in the event of a leak.

It is prohibited to install the device in the bathroom and toilet, in residential premises, and the double-circuit device in the kitchen. Devices with a power of 150 kilowatts or more can be installed only on the ground floor or in the basement. When installed in a kitchen, the area should be calculated at 0.2 m2 per 1 kilowatt of power.

Other types of gas hoses for gas stoves: sizes, prices

A gas rubber hose in a metal braid has an internal part made of polymer materials, which is covered with a layer of vulcanized rubber on top. On the outside, the hoses are braided with special steel threads, creating a so-called reinforced layer.

The main disadvantage of using hoses is considered to be the high ability of steel to transmit electricity, as well as the susceptibility of the internal polymer material to destruction, which may not be noticed due to the presence of upper layers. If the stove is not in use, it is recommended to shut off the gas hose during this time, which will increase its service life. The price for a finished product 60 cm long starts from 140 rubles.

When using this type of connection, you additionally need to install dielectric inserts, which are installed at the junction of the hose and the gas pipe. The presence of a dielectric will protect the gas stove and the hose itself from the effects of stray current, which can cause a fire.

A gas rubber hose in a metal braid has a disadvantage - it is the high ability of steel to transmit electricity

Advantages of using rubber reinforced hose:

• affordable price;
• ease of installation;
• operation in a wide temperature range: from -35 to +50 °C;
• wide choice of length and diameter.

Reinforced PVC hose is considered more modern than the options listed above due to the fact that the characteristics of the material do not allow the product to conduct electric current. In addition, polyvinyl chloride does not break down as easily as rubber. Additional strength to the hose is provided by the presence of two layers of PVC. Inside the sleeve there is a black material, and the top layer is most often distinguished by a yellow color. It is used for supplying various types of gas mixtures: acetylene, propane and butane.

The PVC gas hose for a gas stove is designed for operating pressure up to 0.63 MPa, and the temperature at which gas can be operated varies from -20 to +90 °C, which is a significant advantage. Another positive aspect of using PVC products is the wide range of sizes, with the maximum length of a gas hose for a gas stove being 5 meters and the minimum length being 0.4 m. Galvanized steel is used for the manufacture of fittings, and dielectric properties are ensured due to the presence of a paronite gasket. Other advantages of the product:

• does not collapse upon contact with a hot stove;
• affordable cost, price per meter of product starts from 170 rubles;
• not subject to destruction when exposed to hot drops of oil;
• suitable for use under high load conditions;
• long service life: minimum – 12 years, maximum – 20 years.

The PVC gas hose is considered more modern and is used for supplying various types of gas mixtures

Connection tools and parts

In most cases, the master has the necessary parts. All you have to do is pay the cost of the installed elements. But you can buy everything yourself, after specifying exactly what you need.

For installation you will need:

1. Flexible hose.
2. Ball valve.
3. Sealant: FUM tape or Loctite 55.
4. Pad.
5. Dielectric coupling (if the stove needs to be connected to electricity and a metallized hose is installed).

The hose with which the device is connected to the gas pipeline must be made specifically for gas. They are always marked in yellow. If there is a blue or red mark on it, then such an element will not fit, since they are intended for water. The following types of hoses are distinguished:

• Rubber – made of high-strength vulcanized rubber reinforced with textile thread. It is flexible and durable, withstands temperatures from – 35 to + 50 °C. At the same time it is inexpensive.
• In a metal braid - a modification of the previous version, where the strength is increased due to the presence of a metal casing. The price for it, of course, is also higher.
• Bellows - is a corrugated pipe made of metal-plastic. It is wear-resistant, withstands pressure changes, bends and stretches well. Of all those presented, it has the highest cost.

Before purchasing, check with a specialist which hose is best to purchase.

A ball valve will be needed if the shut-off element has not been replaced for a long time. Some houses still have paddle taps, which is unacceptable under the latest regulations. The new valve should be made of nickel plated brass.

FUM tape or Loctite 55, which are complex synthetic sealants, are used as a sealant to create a safe connection. Previously, flax thread was used for these purposes, however, it does not always provide a tight connection. These products are much more reliable and durable.

The gasket is installed between the hose and the stove itself. It is needed to prevent small debris from entering the device from the gas supply system. This significantly increases the operating time of the equipment. The gasket has a diameter of 3 mm and is usually supplied with the device.

A dielectric coupling is needed if the stove has an electric oven or ignition, i.e. it is connected to electricity. This is necessary so that if you accidentally touch the hose while the oven is on, electrical potential does not accumulate, which could damage it.

It would also be useful to prepare a container with soapy water and a brush or sponge. They will be useful for checking whether there are any leaks anywhere.

If you are connecting the plate to the cylinder, you will also need a pressure stabilizer. It is absolutely necessary, since the pressure in the cylinder is much higher than in the pipes. And to reduce it, a special part is used.

The employee has the rest of the tools: keys, screwdrivers, and you don’t need to prepare anything additional.

If you don’t have a meter, you can immediately ask the master to do this work too. Of course, you need to pay for the additional service of installing a gas meter, but you won’t have to issue a call in the future. Just discuss this point in advance, buy a meter and all the components. We have already talked about which gas meter is better.

Bellows Gas Hose: Best for Gas Stove

If you ask a specialist what type of hose for a gas stove should be, most likely he will suggest purchasing a bellows version for installation. This type of hose is considered the most reliable for connecting the hob to the central gas supply. In addition to gas stoves, it is used to connect water heaters and gas boilers used for individual heating. A bellows is an elastic corrugated shell that protects the inner layer from mechanical and other types of damage.

The great demand for bellows hoses is due to the high technical characteristics and reliability of the devices. The products easily withstand the high pressure created by the gas flow in the pipe. Ease of connection is provided by two fittings designed for connection to a gas pipe and directly to the device. All hose components are made from high-quality stainless steel, which guarantees maximum service life.

Helpful advice! For a safer connection when connecting the hose, a special gasket made of plastic or soft metal is additionally used.

The bellows gas hose is considered the most reliable for connecting the hob to the central gas supply

The price of a gas hose for a gas stove of this type is significantly higher than the cost of other product options, but the service life is at least 10 years longer than the service life of other devices. So, the minimum time during which you can safely use a bellows hose is 25 years, although some companies give a 30-year warranty. The final price is usually influenced by the manufacturer and size of the product.

You can find out how much a gas hose for a gas stove costs (depending on the characteristics) from this table:

Tips for choosing

One of the factors influencing the choice of a particular model of tabletop stove is often the presence or absence of a stationary gas pipeline. It depends on this whether it will be a stove for main gas or for bottled liquefied gas.

The number of burners on the stove is determined by the volume and frequency of food preparation, as well as the specific use of the device. For 1-2 people or for travel use, a one- or two-burner stove is sufficient, but for a larger family, a three- or four-burner model will be required.

When choosing a stove, you also need to pay attention to the technical characteristics

Dimensions and weight. Tabletop stoves generally have standard dimensions within 55x40x40 cm. Weight does not exceed 18-19 kg. Such small-sized devices do not take up much space. Burner size. If there are 3-4 burners on the stove, let them be of different sizes. Coating

This is especially important for the hob. It must be durable, so it is preferable to choose a plate coated with stainless steel

In addition, such material is easier to wash off contaminants. Enameled coating is cheaper, but it is not durable. In addition, chips often form on it. It is advisable to choose a model with a lid. This will protect the stove from damage during transportation and keep it clean during storage. A stove with electric ignition (piezo ignition) is easier to operate. Availability of gas control. This option prevents gas leakage and makes the stove safe to use. An electric oven is more powerful and gets hotter, but it also consumes a lot of electricity. The safest oven is with double-layer heat-resistant glass in the door (there is no risk of burns). It’s good if the design of the model for main gas allows it to be connected to a cylinder. In this case, the kit must include a special adapter-jet. Imported models often have more additional options, but their cost is higher.

The design of the slab and its color are chosen taking into account personal taste. However, it is worth considering that coatings made in shades of brown look much more impressive. In addition, dirt is not so noticeable on them.

The main advantages and disadvantages of using bellows hoses

Simple models of bellows hose are presented in the form of corrugated products, which are distinguished by the presence of a round cross-section. If you choose a more expensive option, then in addition there will be a metal sleeve or polymer coating for protection. The modernized version of the bellows hose has a built-in thermal protection valve, which, when the temperature rises critically, independently shuts off the flow of gas. Of course, this option will also affect how much the hose costs, but the losses that can be incurred in the event of a gas leak will be much higher. Other advantages of bellows hoses:

• easily bend and stretch;
• can withstand loads up to 6 atm;
• are operated in a wide temperature range from -50 to +200 °C;
• are made of high-quality materials that comply with all GOST standards;
• meet the technical requirements for domestic use;
• maximum possible service life - up to 30 years from the date of installation;
• withstand the influence of electric current up to 1.5 kW;
• a large selection of hose lengths for connecting a gas stove - from 0.4 to 5 m;
• compatibility with most types of gas equipment and various accessories;
• the presence of a coating that protects the base of the hose from the effects of various household chemicals used for cleaning and disinfecting the kitchen.

Simple models of bellows hose are presented in the form of corrugated products

Additional safety for the hose is provided by an electrically insulating polymer layer, which protects not only from mechanical stress, but also from high-frequency currents that are created by some household appliances, for example, a microwave oven. Due to the strength of the hose, manufacturers guarantee the integrity of the connection even in the event of natural anomalies, such as an earthquake, when the stability of the building is compromised.

The only relative disadvantages include the price, which is several times higher than the cost of similar products from other groups. However, the presence of a large number of positive characteristics, which include a significant service life, covers this drawback.

Helpful advice! When installing a stove or hob with a built-in electric ignition function, experts recommend additionally installing a dielectric insert between the gas supply tap and the bellows hose to ensure greater safety.

Where to install the stove

The floor under the gas stove must be level so that the hob is positioned strictly horizontally - this will have a positive effect on the safety of the stove and the quality of food preparation.

Rules for leveling the slab height

Most stoves are equipped with legs with height adjustment. This makes it possible to install the equipment on uneven ground. If the floor is crooked and the legs are not adjustable, then you can continue to place a lining under them of the required height from a solid material - chipboard, thick cardboard.

The taps must be in good working order, easy to turn and easily accessible for an adult.

The second thing that should be provided is free access to valves and connecting units. This will allow you to quickly take action to eliminate malfunctions or gas leaks.

Gas hose location

The third rule is to choose the correct location for installing the stove. For each model, the manufacturer recommends a gap between the back wall of the stove and the wall of the room. The size of the gap is specified in the operating instructions for the device.

Main manufacturers of bellows gas line

The market leader in the production of bellows hoses is considered to be the Italian company Emiflex, which has also been certified in Russia. After some research, approval for the use of hoses from this company was given by the state organization Rostest. In addition, the manufacturer received the appropriate permit from Gosgortekhnadzor, which approved the use of products for connecting household gas in residential premises.

The Emiflex gas hose has the following technical characteristics, which make the company a market leader:

• the product is designed to work with natural and liquefied gas;
• the maximum gas pressure for which the product is designed is 7 atm;
• the device can be operated without loss of properties at temperatures from -20 to +100 °C;
• thickness of the metal bellows hose – 2.1 cm;
• it is permissible to stretch the product twice its original length;
• Hoses are available in various cross-sectional diameters - 1, 1/2, 3/4 (in inches);
• Among the types of fastenings, options such as nut-nut and nut-fitting are available;
• The outer coating of the bellows protects the product from exposure to chemical detergents.

The maximum length of the Emiflex gas hose, which is certified in Europe, is 2 meters. For the production of devices, stainless steel is used, marked AISI 316 L. In addition, the hose comes with an aluminum gasket, which is used during installation. The manufacturer draws attention to the fact that lengthening the sleeve is possible only during installation. It is unacceptable to stretch the hose during operation.

Another certified Italian manufacturer in the Russian Federation is Idrosapiens SRL, which also has a European quality certificate confirming the product’s compliance with standards for household use.

The gas hose from Idrosapiens SRL has excellent technical characteristics

Gas hoses from this company guarantee high-quality and safe operation for 15 years. At the same time, longer use is not excluded, but without providing a warranty from the manufacturer. Below is a table indicating the price of gas hoses from Italian manufacturers.

Stages and problems encountered

With rare exceptions, every home owner, when purchasing it, does not have the opportunity to choose which equipment to use for cooking: gas or electric. This is due to the fact that already at the design stage, residential premises acquire an energy system that will be used in the kitchen. The equipment is installed according to the developed project.

Accordingly, before making a decision to abandon gas in an apartment, it is important to study the design of this apartment or other residential premises. You should carefully, including involving professionals, study the capabilities of the electrical network of the premises

In an apartment building that was originally designed to use gas, as a rule, the design load on the electrical networks does not allow installing an electric stove instead of a gas one. Therefore, it is imperative, if you act legally, to install and arrange new electrical wiring that corresponds to the new equipment used.

The prepared project with the signatures of the residents is sent to the appropriate authorities in order to approve the redevelopment, since this redevelopment is considered just a redevelopment. Mandatory organizations when coordinating refurbishment are the management company, the housing inspection, and organizations involved in the sale of gas and electricity. Only after all the necessary permits have been obtained can you proceed to the next stage - dismantling the gas stove and, if possible, the pipe supplying gas to the room.

In our country, work with gas equipment is subject to mandatory licensing. The peculiarity of this stage is that removing the “blue” fuel supply pipe in a gasified apartment building is very difficult and, as a rule, impossible

Therefore, when deciding to change the energy source, you should pay attention to this aspect. Professionally performed dismantling of gas equipment means no problems in the further operation of the premises

If the gas supply pipe remains in the room, it must be inspected at least once every six months to detect gas leaks, which only a licensed organization has the right to carry out. Each locality has its own, determined by local authorities.

The next stage is the arrangement of electrical wiring, if required by the developed and agreed upon project, and installation of electrical equipment. Installing an electric stove, replacing the wiring - this is the type of work that must be carried out by specialists

This is very important because electricity, if used improperly, can cause harm to human health, even death.

Accordingly, when choosing a contractor that will install electrical equipment, you should pay attention to whether it has a license to carry out electrical work, as well as whether its employees have permission to work with electricity of the corresponding category

What is common to the stages of dismantling and installation of new equipment under consideration is that upon completion, a certificate of completion must be drawn up, which indicates the contractor, the types of work performed, the contractor, the warranty period, and the signatures of the parties handing over and accepting the scope of work. Attached to the act are copies of licenses to carry out this type of work and specialist approvals certified by the contractor.

The documents discussed in the previous paragraph will be required for the next stage of re-equipment, namely contacting the appropriate authorities to commission the electric stove and wiring. Such authorities are Rostechnadzor, an organization involved in the sale of electricity, a technical inventory bureau of local governments, and a management company. At this stage, the state supervisory function in the field of energy supply to the population ends. The further method of payment for electricity and the refusal to consume gas fuel is also determined.

What is a dielectric insert for gas: main purpose

The dielectric insert (coupling) is a cut-off fitting that prevents failure of gas equipment, which can be caused by stray current. These currents are formed in the ground due to a violation of the integrity of a household or industrial electrical line. In addition, their source is a railway or tram line. Stray current enters the gas pipeline due to the difference between the resistance of the soil and the metal parts that make up the gas pipeline. It is through the main line that the current enters the household gas pipeline.

Another reason for the occurrence of stray current in the gas system may be poor-quality grounding of household appliances that come into contact with the gas pipe. In general, we can say that there are many reasons for the appearance of stray currents, and the consequences from them will only be negative. To avoid this problem, a dielectric is used for the gas hose, which is inserted between the gas tap and the bellows connection to the gas appliance.

The coupling is installed in order, firstly, to prevent failure of gas equipment, especially if it is modern equipment equipped with a large number of electrical functions. Secondly, the presence of a dielectric prevents the occurrence of a spark, which can cause a fire or even an explosion. For these reasons, according to the rules of the gas service, a dielectric must be used to connect gas equipment, be it a bellows or rubber liner. It comes in two types:

• dielectric couplings - attached between the gas pipeline and the hose that fits the device;

The thread of the fitting can be cut both outside and inside the end part

• dielectric bushings - are non-conducting bushings mounted in the place of dismountable mating of gas pipe elements.

Like bellows hoses, inserts are classified by size, which vary depending on the diameter of the threaded part - 1/2, 3/4 and 1. Therefore, for any type of flexible bellows gas line, you can select a product of the appropriate size. The thread of the insert can be either external or internal. Both bushings and couplings have the same strength characteristics and are designed for a pressure of 6 atmospheres.

Interesting information! The dielectric material used in the production process of the bushing is polyamide, a non-flammable polymer characterized by a significant resistance of approximately 5 million ohms.

Dielectric couplings are special fittings with threaded ends, mounted between the gas pipeline and the fuel-consuming device.

How to choose?

Before you start buying a hose for a gas stove, you need to pay attention to a number of points and listen to some recommendations. Gas hoses should be purchased in specialized stores that specialize in the sale of gas equipment

Such establishments, as a rule, work with trusted suppliers and sell only certified products. In addition, sales consultants have sufficient knowledge and are well versed in the intricacies of connection. Often in special stores you can submit an application for connecting a gas stove, which will be carried out by trained people

Gas hoses should be purchased in specialized stores that specialize in the sale of gas equipment. Such establishments, as a rule, work with trusted suppliers and sell only certified products. In addition, sales consultants have sufficient knowledge and are well versed in the intricacies of connection. Often in special stores you can submit an application to connect a gas stove, which will be carried out by people trained in this.

In general, the requirements for the materials from which gas hoses are made are much higher than the requirements for the production of the same water hoses. This is because gas hoses need to withstand the very low temperatures encountered when transporting liquefied bottled gas. In addition, gas models should not burn themselves and support combustion, and also have a left-hand thread.

However, the most important requirement for gas hoses is the presence of an insulating insert, which was already mentioned above. The fact is that to increase the anti-corrosion resistance of steel gas pipes located in the ground, they are given a positive potential. And there is no guarantee that one of the residents of the apartment building did not use the gas riser as grounding for their household appliance.

This situation can lead to a short circuit, heating the metal braid of the hose and creating an explosive situation. In addition to the possibility of a spark occurring in the gas pipeline and detonation of the gas-air mixture with dire consequences, a person standing at the stove can receive an electric shock, and with a significant potential of stray charges, even serious electrical injury. To prevent such situations, the set of rules SP 42-101-2003 regulating the equipment of gas distribution networks included clause 6.4 on the mandatory equipping of internal gas pipelines with dielectric inserts, which must be installed even on polyethylene hoses.

Today there are two types of stray current cutoffs. The first is represented by dielectric couplings (MD), made in the form of an insulating fitting, equipped with threads on both sides. Couplings are mounted between the main valve and a flexible hose, and are the most common type of insulator. Dielectric couplings are available in four thread sizes: 1⁄2, 3⁄4, 1 and 1 1⁄4. This variety of diameters makes dielectrics compatible with any type of pipeline fittings used in intra-house networks. Moreover, couplings are available with thread/thread, nut/nut, and thread/nut ends, which makes selecting the right fitting much easier and allows you to adapt to any type of connection.

How to properly install the dielectric when making bellows connections

According to the state safety standard, a dielectric insert must be installed between the gas tap and the bellows connection. Basic steps to be taken when installing the bushing:

1. Turn off the gas valve. It is important to leave the gas on the stove so that it all burns out.
2. Take 2 adjustable wrenches: with one you need to hold the valve body, and with the second, you need to tighten the nut of the bellows connection that connects the pipe to the gas appliance.
3. Screw any seal onto the free ends of the coupling (a polymer version is best for this), and then manually screw the dielectric into the gas pipeline.
4. Again, using 2 keys, one of which holds the valve, and the second holds the coupling, the product is screwed in until it stops. It is important not to overdo it here, so as not to strip the threads and deform the valve body.
5. Screw the nut from the bellows hose onto the other end of the coupling, holding the dielectric with an adjustable wrench, and tighten the connection firmly.

After completing all the steps, you need to check the joint for leaks. To do this, use either a small brush or a shaving brush, which is first lathered generously. A soap solution is applied to all joints and inlets, after which the gas tap is slowly opened. If even small bubbles or foam suddenly appear, the tap should be turned off and the quality of the joints should be additionally checked. You can use a gas appliance only if the soap solution does not bubble. Neither matches nor lighters should be used to check leaks, as in the event of a leak they can cause a tragedy.

Any sealant must be applied to the free ends of the dielectric coupling

Connectivity

To connect the heating boiler to the main line, the following conditions must be met:

1. The gas appliance must have a fitting with an external thread, which the rubber sleeve can reach.
2. For ease of installation, an adapter in the form of a brass corner is installed.
3. Gaskets must be present to prevent gas leakage.
4. The end of the hose attached to the boiler is equipped with a mesh that prevents microparticles from penetrating into the device.

At the end of the installation procedure, you can cover the butt joints with a soap solution. The appearance of air bubbles will indicate a gas leak. The connection method is simple, but requires correct adherence to technology.

How to make a safe gas connection: connection features and safety precautions

Regardless of which hose for the gas stove is chosen: bellows or any other flexible hose option, the connection will be made according to the same pattern. Before connecting the hose, you need to unfold the gas device and inspect the back wall of the product. On some models, the gas pipe is marked “Output”. Depending on the configuration, the product must be placed straight or at a slight angle.

In any case, it is important that the hose does not bend too much. To avoid this, additionally purchase corner adapters that allow you to change the angle of direction of the sleeve. In advance, before carrying out all work, it is necessary to think about the location of the stove and calculate the length of the hose.

Important! Before starting work on installing or replacing a gas hose, you must turn off the gas valve and do not open it until measures have been taken to identify a possible leak.

The riser is most often located in one of the corners of the kitchen, and a pipe extends from it, connected by welding, with a gas tap attached to it, to which a flexible bellows gas supply will be attached. If the faucet has an external thread, then a union nut is used to connect the hose. If there is an internal thread, the sleeve is screwed directly into it.

Before you begin work on installing the gas supply, you must turn off the gas valve.

It is imperative to install a paronite gasket between the entrance to the gas equipment and the hose, which comes complete with the tap. Some experts recommend purchasing a gasket equipped with a metal mesh yourself. If a high-quality faucet has been chosen, then you can be sure of the reliability of the gasket.

After installing the paronite gasket, the bellows hose is screwed to the outlet of the plate, and then all connections are tightened using a wrench. At the last stage, it is necessary to conduct an inspection for the possible presence of leaks, using a soap solution, as in the case of installing a dielectric. If no bubbles appear, the cooker or other device can be used safely.

Connecting a gas cylinder to a stove at the dacha, where can I go myself?

This question makes you wonder where to go for help, whether you can make the connection yourself, whether this is a difficult process.

Like the connection of any gas equipment, the connection of the gas cylinder and the stove in the country must be supervised by a representative of the gas service. If it is not possible to promptly call a specialist or the application was not responded to as quickly as we would like, you can handle it on your own. But after this, you still need to call a specialist to evaluate the work of the amateur and correct any shortcomings if any are discovered.

First you need to make sure that the stove is in order, as is the gas cylinder (there should be no obvious damage, severe wear, etc.).

You should also stock up on tools:

• gas tube;
• gas reducer;
• cabinet for storing the cylinder.

The algorithm of actions will be as follows:

1. The cylinder should be placed at a distance of 5 meters from the stove.
2. The place for installing the cylinder must be prepared: you need to install a special cabinet and prepare fastenings.
3. Now you need to connect the hose by screwing it onto the hose of the stove.
4. Tighten the clamps as much as possible.
5. Install the gearbox on a special adapter with wrapping tape.
6. Connect the cylinder.
7. Open the valve and check for leaks. To do this, use a regular soap solution: there are no bubbles, which means everything went well.

Installation recommendations

Experts advise following several rules when attaching gas hoses:

• to avoid kinks, tension or twisting, in order to connect the hose to the plate without compromising its integrity, you should select a bending radius of the part equal to three diameters of the hose used;
• the length of the part is selected taking into account the required distance, so that it is possible to move the equipment if necessary, and the type of product that was chosen, with some supply of hose for the gas stove, so that unnecessary stress is not created in the structure;
• the place must be accessible for inspection of parts;
• there should be no extraneous connections on the device;
• the product cannot be painted to prevent surface cracking;
• connections are made using metal tips;
• parts should be protected from condensation causing oxidation.

Regardless of which hose you connect to the gas stove, you should use the electric ignition very carefully.

Operational safety: features

Before using flexible hoses, it is necessary to carry out an external inspection of them, as well as check their functionality. In addition, you should look at the quality certificate of the purchased device and make sure there is a warranty.

Gas connections using auxiliary fittings are prohibited. In some cases, craftsmen use metal pipes for such purposes, but this happens rarely.

Hoses should be connected following safety rules.

Eyeliners should not come into contact with flammable substances, materials and cutting objects.

Although metal pipes are used extremely rarely, sometimes such installation is required - then elements made of durable metal are used to connect them. Of course, such a design will be durable, but if desired, the slab will be impossible to move from its place, and communications will have to be disconnected.

The use of flexible hoses during installation will allow you to move the structure if necessary

What to consider for connection security

To safely connect and use the equipment, you should follow some rules:

• whatever the hose is to connect the gas stove, its location must be freely accessible so that it is not blocked by foreign objects;
• You should not replace the hose on a gas stove with your own hands; it is better to invite a gas specialist;
• connecting equipment with a flexible hose must be carried out in strict compliance with safety requirements;
• after connecting, the hose should sag slightly, without tension;
• the element must not be bent or twisted;
• the part cannot be painted;
• It is worth replacing the element a little earlier than the time for which it was designed; you cannot wait until a gas leak begins at the stove and then change the hose.

Replacement of the liner must be carried out by specialists licensed for such activities. They also periodically check the functionality of the equipment.

Additional nuances and requirements

The importance of hose selection cannot be underestimated.
When you buy it, you must inspect it completely. The slightest deformation is categorically unacceptable.

When all the components have been purchased, you will have to thoroughly check the dimensions. Most often, the delivery kit contains a so-called template. The cut in the tabletop must be made exactly along it. But it is advisable to check everything one more time. After all, the slightest mistake can result in serious losses.

When choosing a place to install a hob in a country house, in an apartment or in a private town house, be sure to pay attention to the following points:

• constant access to fresh air;
• lack of contact with water;
• a safe distance from furniture and easily flammable objects.

It is worth considering that cutting with your own hands in countertops made of synthetic stone is impossible. It is advisable to order such a tabletop ready-made, with a hole already made at the factory. But working with chipboard and MDF is quite possible. Masking tape is placed near the markings or even on them to avoid splitting during work. Clamps that hold it in place will help prevent the cut from falling and breaking the tabletop.

Before starting work, you should carefully study the household appliances themselves. It is strictly unacceptable to install hobs that are even slightly damaged. It may be dangerous. Gas hoses longer than 3 m are also considered unsafe. Connections between them are especially not allowed.

But the length of the cord for connecting to an outlet can be practically unlimited. What should be strictly avoided is connecting the panel through a tee or other splitter. The plug must be inserted directly into the outlet, without “intermediaries”. This requirement is related to security.

Hobs can only be moved to other premises with the permission of the gas control authorities. Therefore, if it is impossible to connect the panel directly to the pipe, you should use reliable hoses. It is recommended to stretch and attach them before installing the furniture. This will be more convenient for the installers themselves. Experts advise connecting bellows hoses not directly to gas valves, but through connecting units (plumbing pipes and fittings).

Winding of flax is done clockwise. When it is screwed on, you need to use gas paste. It is applied in a relatively thin layer.

People who care about maximum safety often install thermal shut-off valves on gas pipes. They will immediately shut off the gas supply if something catches fire or the temperature rises to more than 80 degrees. Sometimes gas jets are only included in the kit, but are not installed during factory assembly. Then you need to put them in their proper places, guided by the instructions in the technical passport. The plumbing corner, included in the kit by default, is installed immediately; There is no need to reel it in, but a gasket is required.

As soon as the hob is installed in the designated place, its boundaries are immediately aligned. Only then can the fasteners be tightened. You need to cut off the protruding parts of the seal with a sharp knife. At the same time, care must be taken not to deform the surface of the tabletop.

But it will be necessary to check the quality of the installation. First, open the gas valve and check whether there is a smell of gas. Of course, this should only be done with open windows and without fire. If everything is in order, they try to light a fire. At the slightest suspicion of a problem, you must turn off the panel, disconnect it from the power supply and call specialists.

Rules for connecting a stove in a private house

If in a city apartment the duties of gas supply service specialists, with whom the owner has entered into a voluntary-compulsory agreement, include mandatory inspection of gas equipment at least once every six months for the safety of the entire house, then in the private sector the situation is different.

Here the homeowner independently makes a decision on gas supply; he can connect to the central gas pipeline and enter into an agreement with the relevant services, similar to apartments, or use an autonomous gas supply from cylinders and gas holders.

With the latter options, you will most likely have to connect the gas stove yourself or with the help of hired specialists without any guarantees. Therefore, you should approach the matter with full responsibility and carefully study the technologies in order to choose the right components and carry out high-quality installation.

Installation of gas hoses

Where to contact?

To officially change the stove to a more modern model, you will need to:

• buy a unit;
• contact a gas company that has an SRO certificate, that is, permission to install gas equipment in a residential building.

Private gas services most often offer their services at affordable prices. After installing a new stove, it will be necessary to register it with Gosgaz. Employees from licensed companies are also authorized to make entries in the passport of the new gas unit

It is most rational to call a gas specialist from the municipal gas organization, because the fewer intermediaries in this important matter, the better

There is a certain procedure for replacing slabs in private households. In megacities, there are city programs according to which all gas stoves must be modernized. Often such operations are implemented at the expense of municipal budgets (Moscow, St. Petersburg, Nizhny Novgorod).

• if the slab is on the balance sheet of municipal or state organizations;
• if the homeowner has benefits, being a hero of Russia or the Soviet Union, a participant in the Great Patriotic War;
• slabs are also changed for elderly people who do not receive any subsidies;
• poor citizens whose income is below the minimum wage;
• citizens who live in non-privatized households under a social tenancy agreement.

Before starting operation of the stove, you should draw up a document “On technical inspection”. It is also called a “defective statement”. It is usually compiled in several copies. It should contain the following entries:

• about existing faults;
• operating time of this device.

After analyzing the annual preventive inspections of the slab, a final document is drawn up. Then an application is made to the DEZ, which indicates the request for a replacement. The DEZ employee must put the homeowner in line to replace the gas appliance.

To make the replacement yourself, you need to take the following steps:

• submit an application to the REU of the city gas service, where you should indicate a request to replace the unit;
• a specialist will arrive from this organization, who will assess the amount of work to be done and issue an invoice;
• if the homeowner installed the stove himself, he is obliged to write a request for permission to connect it;
• after the invoice is received, it should be paid and an agreed time for the master to come and do his work;
• After installation, a corresponding mark must be placed in the gas stove passport.

Rules for connecting a stove in an apartment

When using a stove in an apartment, it is better to entrust its connection to specialists from gas supply services and organizations, with whom you must first conclude an agreement for the supply of natural fuel with the opening of a personal account to pay for services. An agreement is usually necessary when purchasing a new apartment; the list of documents that are generally needed to connect a gas stove in compliance with all standards is as follows:

1. Certificate of ownership of the apartment and a certificate confirming state registration of housing.
2. Registration certificate for the apartment.
3. An old contract for the maintenance of the stove and a subscriber's book, if available.
4. Passport for the installed stove and gas meter.

The documents collected by the homeowner are submitted to the gas service, after which its specialists issue forms for filling out a gas supply contract. After filling out the papers and receiving instructions on the operation of gas installations, the contract is signed by both parties with the issuance of permission to connect the equipment.

Pipes for gas stoves and panels

Why do many people want to connect the stove with their own hands?

This issue should be addressed separately. Now not only state, but also private teams can connect the stove. But the prices for their services sometimes leave much to be desired. That is why many rely solely on their own strength. After all, at first it may seem that there is nothing complicated when it comes to connecting a stove in an apartment. But that was not the case, because you will have to deal with the entire gas supply system. Therefore, we recommend that you think again before taking on such work.

If you want to save money, contact a local gas supplier. Of course, adjusting to their schedule will not be convenient for everyone, but you will save an extra penny in the family budget.

Connection using a pipe

Connecting a gas stove with a metal pipe is used quite rarely in households - this technology is complex, economically unprofitable and obsolete, and it does not allow installing the stove in another place. To connect, it is necessary to manufacture and bend a pipe of a given size, cut threads at its ends and connect it to the main line and equipment using couplings.

1. When carrying out work, several options are considered: in the first case, the supply pipe is welded to the main pipeline, and the second end is connected to the slab using a surge coupling with a fixing nut.
2. In another option, couplings with lock nuts are installed at the edges on the supply pipe section (threads are pre-cut on both sides), which is then screwed to the main pipeline and the outlet pipe of the slab.

You can do without couplings with nuts to implement a collapsible connection if you have a welding machine - for this, American adapters are welded to the two ends of the pipe.

One of the rather rare connection options is the use of copper pipes - in this case, the workpiece is bent as required with a pipe bender and fittings with union nuts are soldered to its ends.

Connection diagram for a pipe section using couplings

Instructions for self-connection

Paying a gas technician for installation work is not too high, but many home craftsmen prefer to do everything themselves. This is a feasible task that requires the purchase of components and theoretical knowledge.

To connect, you will also need to prepare the following tools and buy materials:

• keys: gas No. 1, adjustable 22-24;
• a screwdriver for tightening the clamp, if required;
• sealants (Loctite 55 thread, flax, FUM - tape);
• gasket ½;
• gas sleeve;
• ball valve 1/2′;
• a brush and soap solution, which will be required to control the work.

A rag and a plastic stopper will also come in handy. The rag will be used as a temporary seal against gas leaks. The narrowed edge of the plug must be adjusted to fit the hole in the supply pipe. If during the extraction process a homemade part gets stuck, you can easily remove it with a corkscrew.

Step #1: Removing the old slab

Shutting off the crane when lowering is a primary task to ensure the safety of the work being performed. Next, you need to unscrew the locknut located on the outlet and remove the coupling. If the old slab has a coupling and locknut that were previously painted, this will significantly complicate the process of dismantling them.

Sometimes it is not possible to complete this procedure, then you will need to cut the eyeliner with a grinder.

The gas stove is dismantled after disconnecting the gas main from the conductor pipe. Difficulties that arise with unscrewing the lock nut on a metal pipe can be solved by cutting off the liner

In the process of unscrewing the squeegee located in the lowering valve, it is necessary to hold the valve itself with a key. It does not have to be removed unless you plan to replace the faucet. When they plan to delay the installation of the slab, an additional plug is installed on the lower side.

Step #2: Replace the faucet

There are situations when the wall is located very close to the tap and there is no way to dismantle it. In this case, it is necessary to bend the fastening and install a wedge between the wall and the pipeline. However, this is done in such a way that it is possible to continue doing the work.

It is necessary to prepare a piece of rag sufficient to completely block the pipe after dismantling the old tap. The next thing will be to tear it off without completely unwinding it. You will also need to prepare the selected type of seal. Do not forget to thoroughly ventilate the room during work to eliminate gas vapors.

After unscrewing the tap, the outlet from the pipe is tightly fixed with a finger and then with a wet rag. The main actions are aimed at eliminating gas escape from the pipe as much as possible. In this case, the thread on the branch should not be closed, since it will be covered with the selected sealant.

Before winding the seal, the threads on the lower end must be thoroughly cleaned. Next, its winding is carried out directly. This process ensures a reliable and airtight fixation of the new faucet, which is then tightly screwed on. The last step is to install the previously removed handle on the faucet.

Using soap foam, the tightness of the connection of the faucet and the gas pipe is checked. If the work was completed correctly, installation of the gas hose can continue.

If gas equipment is connected to the mains for the first time, you will definitely need to call a gas technician. In his presence, the equipment is checked for gas leaks when the valve is open. If the gas service worker does not find any violations, he must enter the established brand of stove into the register.

Step #3: Connecting the Flex Hose to the Stove

The external thread of the hose fitting is wrapped with a sealant. After this, it must be screwed into the tap on the branch pipe. The flexible hose is connected to the manifold at the finishing stage.

Next, the stage of test opening the tap on the lower side is mandatory to check for gas leaks. Using soap foam, the joints are treated with a brush. If foaming occurs when opening the gas tap, the work must be redone.

It is necessary to check the threads located on the manifold of the plate. Quite often it is 3/8′. In this case, you will need to install a 1/2′ adapter with a seal

If the work of replacing a gas hose is carried out in a private house where bottled gas is used, an additional replacement of the nozzle with a smaller diameter will be required. If this is not done, the burners will produce too much soot, which likes to settle on furniture and dishes in the kitchen.

Safety Rules and Tips

You must adhere not only to the step-by-step instructions, but also to the requirements for a secure connection, which include the following recommendations:

• The connections and flexible hose make them accessible in case of a sudden gas leak.
• The maximum permissible length of 1.5 m cannot be exceeded by a centimeter.
• Twisting, bending, pressing, and contact with hard surfaces is not allowed.
• Normal use is permitted only after inspection by a gas service inspector.
• Before starting work, stop the gas supply and check that the valve is sealed in the closed position.
• During the installation process, only special equipment, fasteners, tools, and seals are used.
• The use of uncertified components and sealing materials is prohibited.
• After depressurization, the pipes are plugged with a damp cloth and released immediately before connection.
• For half-inch pipes, a regular cap from a PET plastic bottle is used as a stopper.

After assembly, each connection is coated with a soapy water solution to detect leaks. Bubbles indicate that the connection needs to be unscrewed, the seal removed, a new one applied and re-twisted. After this, the verification procedure is repeated. At the end of the activities, the tap is turned off, and a master from Gorgaz is called, who must carry out an inspection and make a corresponding note in the log. Even if you have to wait several days for an inspection, do not use the oven as it is unsafe even if everything is done correctly. Only a specialist will identify a defective slab if the manufacturer allowed it.

Necessary elements and accessories

For a standard connection of a gas stove, you will need the following accessories:

• flexible hose (170 centimeters);
• metal connection;
• a set of keys and screwdrivers;
• gaskets;
• seal;
• glue-foam.

For connections, special thread gaskets or fluoroplastic film are often used.

During the installation process, it is necessary to use only devices and materials that are recommended by a specialist. Thus, in the practice of craftsmen, it was discovered that the Loctite 55 thread meets quality standards and is used even in difficult joints. This material is durable, the length varies depending on the package (up to 160 meters). Thanks to the use of thread, it is possible to make hermetically sealed connections at the location of the thread. It is worth noting that such a connection can withstand even an impressive load.

Sealant "Loctite 55"

Often the joints are wrapped with fluoroplastic film, which is also suitable as a sealant. The special thing is that it can withstand pressure.

There are several types of fluoroplastic film. Therefore, to choose the best option, you should consider them in more detail.

Table 1. Types of fluoroplastic films

Fluoroplastic film

Fluoroplastic films meet the criteria required for installation:

• fire resistance;
• no corrosion;
• long-term operation;
• low toxicity;
• tightness.

Gas line service life

After installing the hose, you should check its service life and remember the installation date. The product, depending on the type, is designed for a period of 5 to 15 years. It is important not to forget to replace it on time.

Guaranteed service life is indicated in the product passport and in the certificate of conformity.

• rubber hoses (with and without sheath) – 5-year warranty, service life up to 10 years;
• PVC eyeliner – 12-year warranty, lasts up to 20 years;
• bellows gas hose - 15 year warranty, does not require replacement up to 30 years.

Documentary question

Connecting a gas stove begins not with preparatory work, but with purchasing the stove itself and carefully unpacking it. But even after the most thorough inspection, do not rush to start work. After all, you still need to get a list of documents from the gas service. To do this, you must provide local gas workers with your passport with a certificate of family composition, a title document for housing, a passport for the meter, a maintenance agreement, gas receipts, a subscription book, and a certificate of registration of ownership.

Only after this Gorgaz will issue you a subscription book with notes on instructions on how to behave with gas for you and all members of your family, forms for an agreement on the supply of gas to your home, as well as a contract for this same gas supply.

Advice: after receiving the necessary documentation, try to connect the stove as soon as possible. After all, the warranty period extends from the date of purchase of this household appliance, but not connection. Therefore, if you decide to put your new stove in the garage or pantry for an indefinite period of time, this is not the best idea.

Where to go for help

You have purchased a model that is suitable for you, but you have absolutely no idea how it is connected. Where should I go to have my gas stove connected by professionals? There are several options, each of which you can use:

• installation services are provided by stores selling gas equipment;
• organizations that have permission to work with gas systems. Upon completion of installation, you will be issued a certificate confirming that the installation of the equipment was carried out in accordance with the standards;
• calling a specialist from a specialized organization that controls the gas supply process to your home.

It is more rational to contact the specialized service. According to the law, employees of such organizations must record the changes and also make a corresponding note in the technical passport. The gas stove must be connected by a specialist who has permission to work in this area. Therefore, it is better to refuse the services of private contractors. They will not issue a certificate. Because of this, you may face a large fine in the future.