Access to gas seems essential these days, especially since it is considered a clean medium. Both new and older building owners decide to install a gas system. Of course, the entire installation must be properly prepared. Pipes play an important role. How to choose the right pipes for a gas installation?
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Types of gas pipes
Many people wonder what gas pipes to choose. When choosing pipes, you should not only consider economy, but above all work efficiency. For example, you can choose black steel pipes with or without seams. They are connected by welding. It is worth noting that welding starts from the main tap. You can also choose copper pipes, which are connected by soldering. The former are used both at home and for external installations, while copper pipes can only be installed at home.
Steel pipes are used to obtain a truly durable and safe connection. To prevent corrosion, they should be protected with paint. Teflon tape or sealing tape can be used for sealing. Copper pipes are resistant to rust, but it should be noted that they expand under the influence of temperature, which means that they are only suitable for internal installation. Copper pipes should be connected using brass fittings. Connectors can also be used.
Gas installation pipes should be laid on top of the walls. When it comes to installation, we recommend clamps. Residential rooms are places where threaded connections should not be used under any circumstances. All pipes must be routed so that connections are not necessary. Soldering works much better. Only hard pipes should be used in gas installations. We also distinguish PE pipes, i.e. made of polyethylene. They can be chosen because they are durable, resistant to stress corrosion, and are also resistant to abrasion. We also distinguish brass pipes, which are very massive and heavy. They are most often used in industrial gas installations.
How much does 1 meter of gas pipe cost?
Gas pipes are not very expensive, but the type of materials used affects the price. It is worth knowing that seamless black steel pipes cost on average around PLN 22. This applies to the standard size of 33.7/2.9. Larger seamless black steel pipes, e.g. 48.3/3.2, cost PLN 33. A polyethylene pipe of similar dimensions is more expensive, especially if you choose, for example, a columnar pipe with a casing. In such a case, the cost can increase three times. You can also choose copper pipes. Their price is relatively low. For example, you have to pay around PLN 30 per running meter. This applies to pipes with a thickness of 1 mm.
What diameter should a gas pipe be?
The diameter of the pipes should be around 80 mm. This applies to models mounted to gas heaters. On the other hand, pipes used outdoors should have a diameter of 125 mm. Such solutions are particularly useful in condensing furnaces, while in gas installations, where copper pipes are used, the diameter should be 22 mm. This applies to hard steel pipes, the walls of which are no thicker than 1 mm.
What pipes should I use to connect the gas furnace to the central heating?
When connecting a gas furnace to the central heating system, the appropriate pipes for the gas installation must be used. Such an installation must work properly and discharge exhaust fumes, so it must be 100% tight. In gas installations, hard copper pipes can be used, which are connected by soldering or pressing using fittings. Steel pipes are also connected by welding. Alternatively, you can choose threaded connectors made of white cast iron. The arrangement of the pipes depends on the type of gas that the entire installation is supplied with. The pipes should be located above the electrical cables if natural gas flows in them. Additionally, the vertical sections must be located at the right distance from electrical devices, and this distance is 60 cm. T-pieces with three outlets are important. In gas installations, very solid ones should be selected, e.g. brass or copper. Cast iron ones are definitely used less often.
Pipes for gas installation in the Onninen wholesaler
If you are looking for connecting pipes for a gas installation, the Onninen installation wholesaler offers proposals from renowned manufacturers.
A good choice may be the Weba polyethylene gas connector PE32 x GZ 5/4", l=1500 . It is very durable, resistant to mechanical damage, but also overloads. For greater durability, the manufacturer has used an aluminum pipe cover. It allows for safe gas connection, e.g. to a reducer or furnace. This connector can be used outdoors without any worries. Always ensure adequate ventilation at the installation site. We also remind you that liquefied gas pipelines should be routed between partitions and must have a safety valve.
Also worth noting is the Weba 32 steel connection, thread 1", 1500x1500 PE100RC . It is designed to supply a gas connection. It can be used for various pipes or receivers. It is made of an insulated steel pipe, which is bent at a right angle. It is finished with a steel collar. The manufacturer also used an element insulation made of polyethylene with a thickness of at least 2 mm.
The Weba PE/steel 63/50 PE100 SDR11 pipe connection may also be necessary. It is made using the clamping method. It allows you to connect polyethylene receivers with steel ones. This connection is used in both individual installations and industrial networks. The connection is terminated on one side with a polyethylene pipe, and on the other - with a steel pipe, which must then be welded.
The finished gas installation must be accepted in the presence of a representative of the gas supplier. It is checked whether the gas installation is in accordance with the design and construction log entries, and the chimney protocol certifying the correct functioning of the ventilation ducts is verified. The distance of the gas pipes from other installation pipes and ventilation grilles, the durability of the fastenings, the spacing of the supports and the correctness of the passages through the partitions, as well as the paint and anti-corrosion coatings are checked. The gas installation must be checked and a tightness test must be carried out using compressed air.
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