What are water pipes better: polypropylene, metal or plastic? Water pipes which is better at the cottage and in the apartment?

Sooner or later people face the question of how to replace the water pipes. What better choice does the house or apartment, and this affects the proper and continuous operation of the water systems.

Leading positions in products made of polypropylene, HDPE and metal, which start to displace the metal. The characteristics of materials, prices, conditions and financial possibilities of the user depend on the chosen water pipes. Which is better? Consumer reviews are inclined in the direction of the polypropylene and metal.

Polyethylene pipe

Make the decision on what water pipes is better to install in the apartment, quite difficult. Most owners stop at of the polypropylene. The tubing is sealed, welded fittings create reliable and durable connection. They can be of different configurations of the coupling, angles of 90⁰ and 45⁰, crosses and tees.

Primary tool

For welding apply special tool - polypus (for folk - iron or a soldering iron). The heating element 2 is installed in the nozzle of required diameter. They are inserted into the pipe end and the fitting, after which they are heat for 6-10 sec. Then hot parts are removed and are interconnected. In just a few seconds is welding, provides reliable strength of the connection. To disconnect the parts it is no longer possible.

The Special properties of polypropylene allow it to be used for heating and water. One of its varieties - "random copolymer" is the most heat resistant and is used where allowed the water temperature to 95⁰C, and its increase to 100⁰When the failures do not reduce the life of the pipeline.

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The advantages and disadvantages of polypropylene products

The pipe has its own advantages and disadvantages. Advantages of polypropylene pipes as follows:

• Resistance to active chemicals;
• Simplicity and high speed of installation;
• High plasticity, prevents destruction of the pipe in the freezing water in the system;
• Durability when used in high temperature networks;
• Environmentally friendly.

The Disadvantage of pipes is their stiffness. As a result, for their installation requires more swivel fittings. In addition, the polymer has a greater thermal deformation, which should be considered during installation. In the absence of thermocompensation tubing can deform and even collapse.

Polypropylene pipes are classified into 3 types:

1. PN 10 - design for cold water supply and Underfloor heating.
2. PN 20 - for pipelines of hot water supply temperatures up to 80⁰(universal).
3. PN 25 for operation at high temperature (up to 95⁰).

The Last type of pipe reinforced with foil of aluminium or fibreglass. The perforated metal allows not to use glue to connect the layers. Reinforcement increases the strength and stability of the products. The pipe can be plated outside or inside. Aluminum is used mostly to reduce the thermal expansion.

Fiberglass is applied without bonding the layers. It is fused with a layer of polypropylene, ensuring a quality connection.

Plastic pipe

The Design consists of 2 layers of polyethylene PE-X and disposed between aluminum layer. The metal connected to the plastic with a special glue. Its properties depends on the quality of the product. All manufacturers have their own formulations of glue, which they constantly improve. Creates flexibility and smoothness, and aluminum - strength and reduced thermal expansion of the pipe when heated. The best specifications are product of Germany, Belgium and Italy.

Between a pipe connected to a compression or press-fittings. In the first case only requires a wrench, and the second special tool.

Five-layer pipe design has a small thickness, whereby the flexibility of the product. The aluminum layer is very thin and more like tin foil than metal layer.

The advantages and disadvantages of metal

Products have their pros and cons. The positive properties of pipe the following:

• Flexibility often without fittings;
• Light weight;
• Working environment temperature reaches +95⁰C;
• Low temperature deformation;
• Resistant to corrosion and action of aggressive media;
• A slight noise when transporting liquids.

Disadvantages of the following pipes:

• Flammability of the material;
• The elements have different thermal deformation, leading to delamination of the pipe by adhesive layers and at the joints with brass fittings;
• Material poorly resists ultraviolet radiation;
• Low strength under shock loads;
• Narrow diameter range is 16-33 mm;
• Pipe burst by freezing water in it;
• The high cost of fittings.

Another disadvantage is the narrower bore section of the fitting in comparison with the diameter of the pipe. This creates additional resistance to the movement of water.

PNDpipe

Polyethylene (PE) pipe is applied in 2 versions: for technical and drinking water. It is elastic and is sold in coils. Due to this, installation requires fewer fittings, which are made from plastic.

PE pipe is mainly used for outdoor plumbing. It is resistant to low temperature down to -50⁰S. the Flexibility, durability and low cost made it popular for water supply and irrigation of suburban areas. Tubes are operated for a long time, do not become overgrown and is not subject to corrosion. Hot water conventional PE pipe is not suitable, because their working temperature does not exceed 45⁰C. Now frequently used cross-linked polyethylene for water pipes. Which is better, it is crystal clear. But their price is much higher, although the quality too.

What are water pipes better - plastic or metal?

In the market of metal products gradually replaced by plastic. If you want to buy water pipes, which is better, determined by price and quality.img alt="what are water pipes better than plastic or polypropylene" height="240" src="/images/2018-Mar/16/38d333761105384bba76f2f4f8e6d453/4.jpg" width="240" /> one must consider the cost of not only pipes, but also other components. Polypropylene is a bit cheaper than plastic, but a special savings on fittings. Do not forget that the pipe installation requires welding machine, the acquisition of which is necessary to spend. For a large plumbing costs are not so great, since a soldering iron is easy to learn on their own, and the involvement of specialists will be much more expensive.

Polypropylene pipes are produced over a wider range of diameters in the direction of increase ranging from 63 mm For larger diameters the question of which plumbing pipe is better - plastic or plastic, not worth it. It is obvious that there is need to apply PP.

Plastic products have a much lower coefficient of thermal expansion than the polymer due to the presence of metal interlayers (5-6 times lower). Therefore, for polypropylene pipes require thermocompensator in the form of loops. The presence of materials with different thermal expansion in one system reduces the period of exploitation of plastic pipes with frequent temperature exposure.

Plastic water pipe mount is simpler and does not require expensive welding machine. Communications of the polypropylene obtained sealed, but the welds are no different in strength to the material.

Water pipe at the cottage

In the farm economy for irrigation and personal needs always need water pipes. What are the best in the country? It is obvious that this products made of HDPE that benefit from other materials according to the following criteria:

1. The Ratio of quality-price.
2. Durability, flexibility and ease of processing.
3. Add fittings manually does not require special tools, knowledge and skills.
4. The Presence of special adapters for installation of valves and connections of consumers (shower, sink, watering device).

All components and instruments are sold in specialized stores. To water do not interfere with the movement of the plot, it can be buried in the ground. To prevent damage to pipe garden tool for her paving the trench of the plastic trays, covered with top bars. Tubing can be set annually, but it also left in place. Then in the winter he drained the water, and system purged, e.g. with a vacuum cleaner.

Domestic water

What a water pipe is better to use at the cottage, in a rustic house or apartment in the premises? Specifications: polypropylene and plastic pipes allow them to apply successfully for internal use. They are easy to hide behind walls or under floors that preserves the integrity of the interior. Reliable connections guarantee the pipe against leaks. If shortcomings, it is mostly due to incorrect installation or faults.

Conclusion

Many owners find it difficult to choose a water pipe. Which is better of existing types, it is difficult to determine because of metal-plastic and polypropylene products have their pros and cons. All this is reflected in the characteristics of products, which always should be examined in detail. Which plumbing pipe is better to put, depends on the quality, technical characteristics, and preferences of the owners and their financial capability.

HDPE Pipes are more suitable for garden and outdoor supply. For the price and performance they are far ahead of competitors.