This type of plastic pipes used for water supply, heating, transfer of compressed air, industrial fluids. Even the title shows that the metal plastic multi-layered tube. It consists of 5ti layers. 1st – PEX (cross linked) polyethylene, 2nd – glue, 3rd – aluminum foil, 4th – glue, 5th – PEX polyethylene.
Often referred to as metal-pipe triple. The glue connecting the three parts of metal-pipe has a special structure, which provides stable and reliable coupling of its layers.
There are two types of metal pipes: suture and seamless. The technical difference lies in the method of forming the third layer. When you create a layer of aluminum welded pipes for piling over the top and connects with ultrasound, with the creation of seamless pipe aluminum layer butt laser. A combination of metal pipe impact on their quality.
In the end, welded pipes is cheaper and less reliable and seamless. Inlet temperature of fluid in the welded pipes should not exceed 40 ° C, while the seamless pipes can safely transfer fluid temperature of 95 ° C. Due to the inner layer of plastic avoids oxidation and corrosion. Are mounted with metal fittings.