When deciding to heat your home with natural gas, we need to make a gas installation of high quality materials, and a gas cabinet with fittings that will allow us to safely connect our building to the gas network. And you can find out how to secure the installation in the article.
In the following post we will delve into the gas cabinet equipment which includes: metering, shut-off and protection devices for the internal gas installation - what are they and how do they work?
Bellows gas meter
The main equipment of the gas cabinet is gas meter. Domestic installations use bellows gas meters, which are fixed with a mono connector. Mono-couplings are also important equipment gas box. There are different types of mono-couplings. The differences are based, for example, on the location of the respective province. There are mono connections for low, medium and high pressure. Usually gas pipes have an average pressure. For example, at medium pressure we use threaded couplings in most parts of Poland. Flanged connectors are used mainly in Lower Silesia. Remember that other parameters such as spacing for the gas meter should be included in the design.
Pressure regulators
A pressure regulator is a must in gas cabinets. It adjusts the pressure of the flowing gas from the mains to the pressure in the internal gas installation. Two-stage regulators are designed for domestic installation - they can be straight or curved.
On the equipment of each reducer you will find :
- body
- control diaphragm
- enforcement mechanisms
- throttling valves
- vibration damping bodies
Gas regulators are characterised by their required maximum and minimum inlet pressures , and by their maximum throughput at minimum inlet pressure.
Gas cabinet
Most importantly, the gas connection is included in every gas cabinet. However, we can distinguish between the following types of gas cabinets based on their method of installation :
- recessed - mounted in a wall recess in a special profile cover,
- free-standing - usually mounted on posts or installed in a fence,
- wall-mounted - mounted directly on the wall of the building, without a back panel,
- flush-mounted - recessed housing, only the box door is visible on the outside
Based on the material from which they are made, we distinguish between cabinets:
- plastic - most commonly used in detached houses, suitable for mounting from the fence line, in wall recesses or to be left free-standing,
- metal - made of acid-resistant steel, which is characterised by very high resistance. For maximum protection, the cabinet can be coated with an anti-corrosion treatment, such as a stainless steel gas cabinet.
In our offer you will find many variants of gas boxes, as well as liquid gas connection kits with regulator and box. What's more, we talked about whether a gas box has to be yellow in our video.
Gas tap
First and foremost, there is also a gas cock in the gas cabinet, which allows the gas supply to be shut off in an emergency or for repairs to the installation. In addition, according to the regulations, the main gas cock is installed at least 0.5 m from ground level and at least 0.5 m from the nearest edge of a window, door or other opening that allows free access.
However, it is important to remember that, for safety reasons, gas and electricity meters are not installed in a common bay and the gas box is placed at least one metre away from the electricity box.
To sum up most importantly, when deciding to heat your home with natural gas, remember to make the gas installation with high-quality materials that will allow us to safely connect our building to the gas network.