Installation of a gas meter in the apartment: step-by-step installation instructions
If recently gasometers were found only in rare apartments, now installing a gas meter has become a frequently performed procedure. This is due both to the mass gasification of apartments and private households, and to the increase in tariffs for this type of natural resources, because it is the controller that allows you to accurately track consumed blue fuel and spend it economically.
In view of the relevance of such equipment, in this article we suggest that you familiarize yourself with the features of household meters, the intricacies of choice and installation rules, including the process of obtaining permits and step-by-step instructions for installing a gas meter.
The content of the article:
- The device of a household gas meter
- How to choose a suitable counter?
- Features of the installation of a gas meter
- How does commissioning take place?
- Sealing and checking the counter
- Installation and Operation Requirements
- Installation Services Cost
- Conclusions and useful video on the topic
The device of a household gas meter
There are many models of gas meters that differ in their dimensions, operating principle, design, purpose and other criteria.
In everyday life, membrane-type devices, which are also called diaphragm or chamber, are most often used. This type of meter was invented in Great Britain at the end of the 19th century and has been successfully used since then.
Such devices are characterized by low cost, sufficient strength and durability. Among the shortcomings can be attributed to a low, but still sufficient for domestic purposes bandwidth and a rather large size.
Such natural gas meters consist of several compartments, which are separated from each other by alternately opening sashes. In addition, each element is associated with a special cross-shaped mechanism.
Briefly, the functioning process can be schematically represented as follows:
- Initially, gas enters the first compartment: its overflow causes deformation of the diaphragm.
- The latter drives the leaflets of the device, which begin to open a little in turn, allowing a certain volume of gas to penetrate into the next chamber. Immediately after the release of the previous compartment, the sash closes tightly.
- The movement of the flaps, passing another batch of gaseous fuel, gives a mechanical impulse, which also causes the cross mechanism to move.
- Under its influence, the rotation of the special device “stars” begins, which allows you to calculate how much gas flow has passed through the system.
The readings of such a counter are quite accurate.
How to choose a suitable counter?
What should I look for if you decide to put a device in a house or apartment? The main criterion for choosing a device is its ability to pass a certain amount of gas through itself per hour. This value can be determined independently by studying the technical parameters of all blue fuel appliances in the apartment.
On average, a standard four-burner stove consumes 1.56 cubic meters of gas in one hour, while a gas column uses 2.5 cubic meters. If both units are located in the apartment, you need to add these numbers.
It is worth paying attention to the markings affixed to gas meters: it will help to understand what parameters the device is designed for.
The letters and numbers applied to the model indicate:
- G1.6 indicates that the device passes 1.6-2.5 cubic meters of gas per hour;
- G2,5 - from 2.5 to 4 cubic meters;
- G4 - from 4 to 6 cubic meters.
There are also more powerful controller options (G10 or G16), the characteristics of which are calculated according to the same principle.
When choosing a device, the following factors should also be considered:
- number of residents in the house;
- ambient temperature at which the meter will be operated - if the device is planned to be used outdoors, it is advisable to purchase devices with temperature compensators that can be used even in cold weather;
- diameter of the thread provided at the exits of the gasometer;
- distance between the centers of the controller outputs.
Gas pipes can be 1/2 inch, 3/4 and 1 inch. The first option is adopted in apartments, but can also be used in private houses, where other elements are also used.
The purchase of a gas meter should be agreed upon with the specialists who will install the device. To do this, you should contact the selected company for consultation, having previously determined the approximate capacity and sketching the floor plan.
Detailed recommendations for choosing the best gas meter we have given in the next article.
When buying, you should pay attention to the exact manufacturing time of the purchased meter, since the verification period of the device is determined not by the day of purchase or installation, but by the date of issue.
Features of the installation of a gas meter
Since gas controllers belong to the category of high-risk devices, only specialists who have passed the relevant certification should install them.
Stage # 1 - Choosing a Service Company
In Government Decree RF № 410 dated 05/14/13 The circle of organizations that are allowed to work with gas equipment (installation, repair, replacement) is defined.These include companies that transport natural fuels to the junction of the network.
Before contacting a specialized organization, try to find out the following information:
- Does the installation company have permission to carry out work related to gas networks?
- What experience does the organization have in this area; how long has she been engaged in such work?
- What guarantees apply to the installation of gas equipment?
When choosing a contractor, one should not focus only on the low cost of work. You should be wary of the low price of services: this may indicate an insufficient qualification of employees or the use of cheap materials of inadequate quality.
Stage # 2 - applying for a gasometer installation
Information about the gas service can be easily found using the gas payment receipt, on the back of which is usually the telephone number of the relevant organization. By calling the indicated number, you can consult a specialist, find out the address of the gas supply service from him, as well as the work schedule.
After that, you should visit the selected company to apply for the installation of a gas meter in an apartment or house.
In this case, you need to take documents such as:
- passport of the Russian Federation;
- certificate of ownership of housing or a lease;
- paid receipt for gas, certifying the absence of debts.
Since service employees may ask you to attach copies of documents to the application, it is better to make them in advance.
Stage # 3 - installation of a gas meter and payment for work
Employees of the company will explain in detail how to install a household gas meter in a house or apartment, and after receiving the application, they will schedule a visit for the master. He will determine the technical capabilities of the installation of equipment, as well as make all necessary measurements.
According to the master’s conclusion and his measurements, an estimate will be drawn up and equipment purchased, including a gas meter suitable for the room.
After that, the client again needs to visit the gas service in order to agree on the time for further work, as well as to make full or partial payment.
Step # 4 - Choosing a Device Location
The installation location is usually discussed with a wizard who can offer his own placement option. But he should not insist on it, if the choice of the owner does not violate the key provisions of the rules for installing a domestic gas meter in an apartment, which are regulated in SNiP 42-01-2002 and SP 42-101-2003.
According to the latest document, their placement is based on the conditions of comfortable operation (installation, maintenance, repair). The gas meter is usually mounted in the room where the gas stove, gas boiler or other equipment is located.
The meter can also be mounted in the space adjacent to the gasified one, even if there is an opening between them, while the presence of a niche is unacceptable. The device can also be installed outside the building, but in this case it is advisable to hide it under a canopy or in a special box to protect it from external influences.
The meter should be at a distance of no more than 0.8-1 meters from the unit that consumes blue fuel (column, stove, boiler). There is also a standardized height of the gasometer - 1.6 m.
The gas device should be separated from the wall by 3-5 cm to provide corrosion and sound protection. The shut-off valve is placed on the side of the stove at a distance of no more than two meters.With the upper wiring provided, this part should be on the descent.
The gas metering device should be visible, it is advisable not to cover it with interior items.
The counter should not be located directly above the sink or in other places with high humidity. A section of pipe to and from the gas pipeline should not have a bias towards the gasometer.
In addition, the room in which the gas metering device will be placed must have good natural or compulsory ventilation.
Stage # 5 - installation of the device
On the appointed day and hour, the company's repair staff will come to you, who must perform all the manipulations.
For installation, a wide variety of elements are used. First of all, it is a mechanical or electronic gas meter (you can use different models, including a number of foreign ones). Before installation, it is necessary to carefully examine the appearance of the device for defects and damage.
There are some more components. Next, we will discuss them in more detail.
Thermal stop valve (KTZ)
A feature of this element is its ability to automatically shut off the gas flow to household appliances in case of temperature increase. The part consists of a housing, inside of which there is a spring-loaded locking element, which is supported in open form by a low-melting insert.
As soon as the valve temperature reaches 90 ° -98 ° C, the insert melts, causing the element to fold, blocking the gas flow.
Gas shutoff valve
The familiar part is used to mechanically shut off gas access. Household gas taps, which are usually made of brass, are designed for use on low-pressure gas pipelines (up to 5 Bar).
The manufacturers' assortment includes many models, distinguished by control methods ("handle", "butterfly"), sizes and connection options (nut-fitting, nut-nut). Therefore, even if it is necessary to carry out a replacement, it will not be difficult to select the desired crane. The main thing in the process of performing the replacement of this component is not to ignore safety regulations.
Isolating Compound (IS)
A device that is designed for dielectric sectioning of a pipeline. Similarly, the system is divided into connecting sections between which the overflow of electric current is excluded.
Insulating joints can be used for surface and underground pipelines. Their use helps to reduce the likelihood of failure of the measuring equipment due to electric discharges resulting from various reasons.
Gas hose (bellows)
A flexible part is used to connect gas appliances (columns, stoves) to the gas pipeline. Moreover, these tasks are often performed by the users themselves without involving a representative of the gas service. If you want to replace the hose with your own hands, we recommend that you familiarize yourself with the rules installation work.
In practice, various options can be used to install the meter hoses and eyeliner: from ordinary rubber elements to stainless steel corrugated parts with extremely high strength.
Installation technicians should ensure that the threads of the overhead nuts and meter fittings match. When performing work, it is necessary to pay attention to the direction of the arrows printed on the parts.
The fitting o-ring may only be used once, while using paronite PON-2.0 (GOST 491-ЗС) or oil and petrol resistant rubber 1-2 mm (GOST 7338-65).
How does commissioning take place?
Having carried out the installation, gas service specialists without fail check the meter’s performance.
The following factors are taken into account:
- the presence of interference with the passage of fuel through the mechanisms of the device;
- meter performance;
- no gas leaks.
In addition, the consumed fuel is measured.
Upon completion of the control measures, an act on the work performed is drawn up, which indicates the following data:
- place and date of installation;
- gas meter serial number;
- Name and contact details of the installation staff;
- performance indicators at the time of installation;
- time of the planned calibration of the gas controller;
- smoothness of the star mechanism of the counter.
The document is prepared in two copies: one is issued to the owner of the apartment, the other is transferred to the gas service. The client also signs the acceptance certificate of the work performed (also in duplicate). The specialist is obliged to fill out the act of putting the apparatus into operation and the contract for maintenance of the gas meter (such papers must be executed in triplicate).
When you turn on a newly installed device, it is important to displace air from the system with gas. To do this, you need to sequentially open the gas at the inlet, and then at the outlet, which will avoid damage to the gasometer mechanism from shock loading during first use.
Sealing and checking the counter
The final step in installing the meter is to overprint and seal the mounted device. To do this, the owner must purchase a seal and call the Gorgaz employee again, who is obliged to visit the house within 5 days from the date of application.
The specialist needs to verify the correct layout of the gas meter, after which, based on the statement on the installation of the meter and documents on the completion of installation work, the device should be sealed. Without such an operation, the device is considered illegal, and its testimony is not accepted for payment for the supply of natural fuel.
After completing all the procedures, the owner of the housing should visit the HOA (DEZ), where one of the copies of the commissioning certificate is transferred. On its basis, an agreement is concluded with the management company for the payment of gas according to the testimony of a metering device. From now on, once a month the subscriber is obliged to report the meter readings to the RPI, from where the receipt with the figures of the actual consumption of the natural resource will come from.
According to Russian law, the gas meter must undergo an initial verification before commissioning or upon completion of repair work, about which an appropriate entry is made in the technical passport of the device.
The date of the next such event is entered in the same document. In this case, the landlord undertakes to ensure that checks on time.
Installation and Operation Requirements
When installing and operating gas equipment, the following points should be considered:
- The temperature of the incoming fuel, as well as the air temperature in the room, should be in the range from -20 to +60 aboutWITH.
- The model must withstand a short-term increase in fuel flow by 1/5, as well as a short-term increase in pressure by 1/10.
- The meter installation location must comply with the design documentation approved by the gas service.
- In an apartment building, gas welding operations must be carried out only after a complete shutdown of gas in the entire entrance.
- During installation work on the supply gas pipelines, it is necessary to first close the locking device, to protect it from accidental opening.
- Before disconnecting the steel parts, as well as installing the meter, it is necessary to bypass the disconnection points with a flexible insulated cable with a cross section of 16 mm2, which will protect the circuit from electrostatic voltage.
- When installing equipment, exclusively certified devices and high-quality materials should be used.
And once again the main rule: only certified gas service specialists can carry out work. All operations for the installation of gas equipment must be carried out in compliance with strict operating rules.
Installation Services Cost
Since the controller device for gas consumption is considered the property of the owner of the apartment, he is obliged to purchase it at his own expense, as well as to reimburse the costs of its installation.
The installation cost may vary, since a number of factors affect this value, namely:
- the presence of household appliances and devices, the functioning of which requires blue fuel. These include gas water heater, water heater, gas stove, boiler;
- welding work or their absence;
- the length of the pipes on which the meter is mounted;
- payment for materials and equipment (hoses, fittings).
At the moment, connecting the device in a room where there is only a gas stove, costs an average of 3000-5000 rubles, if the apartment is equipped with a gas column or other equipment, the price rises by about half.
As practice shows, the money spent on the purchase of the device and its installation pays off within one year. But it’s still better to make an initial calculation, especially if 1-2 people live in the apartment, and only the hob from the appliances.
Conclusions and useful video on the topic
We offer you a video that details the procedure for installing a gas meter with the help of gas service specialists.
A correctly selected and correctly mounted gas meter will bring great benefits to apartment owners. It will show the exact consumption of the natural resource, which will help to monitor its consumption..
A reasonable attitude to the use of gas, in turn, will avoid unnecessary expenses and significantly reduce the cost of paying for blue fuel.
Do you have questions that we did not address in this article? Ask them in the comment block - our experts will try to clarify all the points.
If you want to share your personal experience in obtaining the necessary documents and installing the meter, including the further design of the device and putting it into operation, tell us about this under our article. Add a photo of your meter, indicate how quickly in your case, the investment in installing the device paid off and if you are satisfied with the result.