The HDPE (high-density polyethylene) pipes They are in high demand among companies that specialize in the design and construction of pipeline networks. And it’s no wonder: the results they deliver in terms of cost, lifespan, and functionality are what have made this type of pipe so popular in recent years.
The high-density polyethylene It is one of the plastics most highly valued by the industry due to its many benefits and applications. In fact, many everyday products are made from this material: bags, containers, gas tanks, bottles… Below, we will explain the benefits and drawbacks of the HDPE pipes, we'll list some of its specific applications and review the different types that exist.
Advantages of HDPE Pipes
Compared to PVC, steel, or concrete, for example, the HDPE pipes They offer many benefits. Among them are the following.
Durability
At a minimum, HDPE pipes last 50 years in perfect condition. This calculation is based on a surface temperature of 20 °C: if the pipes are buried more than 80 centimeters deep, their service life will be much longer.
Resistance
The wear and tear that this type of pipe undergoes The risk of damage from abrasion, corrosion, or chemicals is much lower than in models made of steel or concrete. What’s more, they also suffer less damage from direct exposure to UV rays.
Flexibility
With this material, it is possible to significantly alter the direction of the pipes by forming bends at low temperatures without having to use any fittings. That is why they are a good solution if you are looking for a better adaptation to the terrain.
Lightness
Transporting HDPE pipes involves a significant savings. We must keep in mind that no machinery is required, nor does it take an excessive amount of time to handle them.
Thermal stability
This material is extremely insensitive to temperature fluctuations. That is why the risk of fluids freezing in the pipelines is much lower with this system.
Minimizing Losses
Another advantage of HDPE pipes is their low roughness. This means that pressure losses are much lower than in other cases, due to its hydraulically smooth composition.
Main Drawbacks
Like virtually any material, HDPE pipes also have some drawbacks. However, these are minor compared to their advantages.
- Low resistance to excessive overloads.
- Sensitivity to expansions due to temperature changes.
- They do not allow the union neither screwed nor glued.
- They have some problems with the resin accessories acetyl.
Some applications
There are many possible uses for HDPE pipe. Among them are its use in irrigation systems, drinking water systems, wastewater systems, and, in general, Wastewater and Drainage… But they are also very useful for mining, aquaculture, natural gas and fire protection networks, and even the optical fiber.
Types of HDPE Pipes
We can distinguish Two main types of HDPE pipes. Depending on the joining method used, these are as follows.
- Fixed Systems. Of particular note are those manufactured using the thermofusion method, which are ideal for gas systems, industrial applications, and mining due to the safety and reliability they offer, and the electrofusion method, which is used primarily in LPG and natural gas systems.
- Modular Systems. These can use various types of connections, such as compression fittings, flanged connections, or Victaulic-type connections.
Staying up to date on all the features and new developments in the field of HDPE pipes It should be a priority for any professional. That's why, at Structuralia We offer a variety of Master's Programs in Construction that provide all the necessary knowledge.
