Comparison of plastic and metal-plastic pipes

When arranging new or repairing old water supply systems, you will need to make an important decision and choose pipes according to the material of manufacture. These can be steel, copper, plastic and metal-plastic products. We talked more about steel and copper pipes in the previous article, and now we will study two other varieties.

Features of metal-plastic pipes

Lightweight and easy to install, these pipes have long been in high demand and popularity. The product consists of three layers:

• metal frame, which can be solid, spiral or perforated;
• two layers of plastic, under which the frame is hidden.

The plastic is designed to protect against hydraulic shocks and exposure to temperatures up to -75 g. Celsius. The service life of such products reaches 35 years.

Special fittings and shut-off and control valves are used for switching. The installation work is as simple as possible, so even a person without special skills can cope with it.

Metal-plastic pipe can be used in the arrangement of hot and cold water supply systems. Of the disadvantages, we highlight the probability that under the influence of high temperature, plastic can "flow". Also, the connecting elements need to be tightened from time to time. Pipes and connectors have medium mechanical strength.

Features of plastic pipes

Another popular type of pipes used for the arrangement of water pipes for external and internal use. They have many useful properties that other analogues have, including strength, low price, durability, corrosion resistance and aesthetics. They are connected as simply as metal-plastic products. You will need a soldering iron or special glue with fittings.

Plastic pipes are divided into three main categories:

1. Polyethylene pipes can withstand a temperature range from 0 to +40 g. Celsius. Elastic products do not crack even when water freezes, are characterized by weak thermal conductivity and are switched by soldering.
2. PVC pipes are inexpensive and practical products for hot and cold water supply or heating systems. It is tougher than polyethylene, and fittings and glue are used for switching.
3. Polypropylene pipe is used in many areas. It is similar in many characteristics to polyethylene, but the price is lower.

Thus, when choosing between plastic or metal-plastic pipes, take into account the operating conditions of the future system.