Polyethylene pipe for gas supply

Polyethylene pipes and fittings for gas supply purposes have reduced the cost and time of implementation of gas supply projects in the country. Polyethylene gas supply pipe is produced with standards much higher than the standard provided by the Gas Company and the Standards Office of Iran.

The use of pressurized polyethylene pipes dates back to the early 1950s. Applications of these pipes (polyethylene pipes) include water transfer, chemicals, cooling and heating fluids, gases, compressed air and firefighting systems, both on the ground and underground.

One of the first applications of polyethylene pipe (medium density) was in the field of gas transmission, which has been used since 1960. Currently, more than 90% of US and Canadian gas transmission lines are made of plastic, 99% of which is made of polyethylene. Polyethylene pipes are used in gas transmission networks not only in North America, but all over the world.

The fittings used in the gas supply network and for the gas supply polyethylene pipe are electrofusion fittings. Electrofusion fittings are a type of fittings that can be used in gas transmission pipelines and water supply lines. Electrofusion welding and its connections are the only type of connection approved by the IGS standard for gas transmission lines due to their very high safety. Experience has also shown that it is possible to connect polyethylene pipes with different types of polyethylene in this method. In addition to its safety, other advantages of this method are high speed and clean connection.

Advantages of using gas-fired polyethylene pipe

  1. The easy connection of the polyethylene pipe is able to connect the weld, so that the resulting connections are not only as strong as the pipe itself, but in some cases even stronger than the pipe itself. Since the main disadvantage of pressure lines is the joints, it can be concluded that polyethylene joints have better strength than other materials.
  2. The flexibility of polyethylene pipe can be bent up to about 25 times the diameter of the pipe. This eliminates the need for fittings in many cases to change the angle of the pipeline. On the other hand, the flexibility of polyethylene pipe justifies its use in seismic areas. The flexibility of polyethylene pipe is one of the most important advantages of polyethylene pipe, which makes it possible to use these pipes as a gas supply pipe.
  3. Advantages of installation Unique installation methods that can be used for flexibility and leak-free connections of polyethylene pipes, the use of these pipes is more economically and technically justified than steel pipes and saves a lot of time and money. It becomes.
  4. Corrosion resistance and chemical effect of gas supply polyethylene pipes have very good chemical resistance and are very resistant to active compounds of gas and other chemical compounds.
  5. Long life, durability and cost reduction The service life of polyethylene pipes is estimated to be between 50 and 100 years, which means a reduction in long-term replacement costs. On the other hand, the cost of brokerage, installation and maintenance of this product is very justifiable and low compared to other products.

Application of polyethylene gas supply pipe

Due to the characteristics of natural gas, the use of polyethylene pipes in gas transmission systems is one of the first applications of this pipe in the oil, gas and petrochemical industries. However, this type of pipe has been used in many gas transmission systems since 1960, which can be a valid reason for the quality and reliability of polyethylene pipes and polyethylene fittings. Today, more than 90% of the installed pipes for the distribution of the natural gas industry in the United States and Canada are made of plastic pipes, 99% of which are made of polyethylene.