The construction or repair of a water supply, heating, sewerage system in a private house or apartment requires the purchase of pipes and connecting devices. We will tell you how to choose the right pipes and steam fittings malaysia required for the installation of a particular system.
Types of pipes
It is more expedient to classify pipes by material of manufacture:
For a long time and successfully, pipes made of carbon steel have been used in heating systems. Until recently, their use was economically viable. Steel pipe products are the most optimal in terms of cost. Steel pipelines are capable of operating at temperatures above 150 degrees. Products made of steel are distinguished by high mechanical strength and are not afraid of impacts. The steel piping is well suited to the high pressure of the district heating system. The main disadvantage of carbon steel products is their strong susceptibility to corrosion. To combat corrosion, steel pipes are galvanized, which significantly increases the service life. A more expensive solution is stainless steel piping. They have all the advantages of conventional steel products. Additional advantages are corrosion resistance and aesthetic appearance. The downside is the high cost of this option. More recently, they began to produce corrugated stainless steel pipe. Such a corrugated pipe can be bent by hand, which makes it possible to do with a minimum of connections.
Copper pipes have long become exotic in our market. The cost of non-ferrous metals does not allow them to be widely used for the manufacture of pipelines. However, these products can be used for the most critical areas of heating systems, water supply, sewerage or gas supply. Copper pipelines have high heat transfer, do not overgrow with deposits from the inside, are not afraid of corrosion, and are inert to the chemical composition of water. Copper pipes are easily connected using fittings or soldering.
A modern alternative to metal products are pipes made of polypropylene. The main advantage is complete inertness to corrosion. The pipelines are capable of operating at temperatures up to 90 degrees. Polypropylene pipes have low thermal conductivity, which minimizes heat losses in the pipeline. The products are designed for operation at an operating pressure of up to 10 atmospheres. The material is very lightweight and flexible, resistant to low temperatures. Polypropylene pipe sections are easily soldered using polypropylene fittings or threaded connections using combination fittings. Products made of polypropylene have a low price. The disadvantages include significant linear expansion during heating, as well as sensitivity to an increase in the temperature of the coolant.
Polyethylene pipes are devoid of the disadvantages of polypropylene products. They tolerate higher temperatures well, although their normal operating temperature is 80 degrees. There is no linear expansion during heating. Products are not afraid of corrosion, they tolerate water shocks well. Polyethylene is very durable, bends easily, which is important for installation. The connection of pipeline sections is carried out using compression or pressure fittings.
Products made of metal-plastic are gaining great popularity due to their high consumer qualities. The metal-plastic pipe is a multilayer structure made of polyethylene and aluminum foil, joined by high-tech glue. The maximum working temperature can reach 120 degrees. Working pressure is allowed up to 20 atmospheres. The devices are devoid of the linear expansion effect. The metal-plastic pipe is sold in coils, which makes it easy to purchase the right amount. The disadvantages include the need to use expensive metal fittings for installation.
Benefits of different types of pipes
It can be stated that the time has come to change metal pipelines for products made from more technologically advanced materials. In all respects, the best choice for the heating system of an apartment or a private house is metal-plastic pipelines. The second and third places are shared by polypropylene pipes and products made of cross-linked polyethylene. For water supply and sewerage systems, you can choose all types of pipes made of polymer material.