How long is the gas aluminum pipe life in general?
The service life of the gas aluminum pipe is generally 50 years, and the temperature resistance and pressure resistance should meet the requirements of the national compulsory standard, at the working temperature of 60 DEG C and the working pressure 0.4MPa.
Aluminum plastic pipe has metal tubes, strong pressure and plastic pipe, acid, corrosion resistance of the two major characteristics, is a new generation of pipe model.
The aluminum plastic pipe is a new type of pipe made of welded aluminium tubes in the middle layer, polyethylene plastics inside and outside layers, and hot-melt adhesive between the layers. Polyethylene is a non-toxic, odorless plastic. It has good impact resistance, corrosion resistance and weather resistance. The longitudinal welding of aluminum alloy in the middle layer makes the pipe have the compressive strength of the metal, and the shock resistance makes the pipe easy to bend and does not rebound,
The long service temperature of aluminum plastic pipe is 95 DEG C (50 years, 1MPa), the highest service temperature is 110 centigrade. The aluminum-plastic composite pipe made of PE plastic, the structure of molecular chain - (-CH2 - CH2-) n-, is a very stable structure of plastic, and the middle layer of aluminum plastic pipe inside and outside the outer plastic layer of isolation, allowed to join the light stabilizer, enough to resist oxygen aging without affecting the water contact layer is wei. Because of the aluminum tube and aluminum composite as a whole, the linear expansion coefficient with aluminum is about 0.025mm/m / C, PPR tube 1/6, the change of temperature, the deformation is smaller, and the plastic pipe is a flexible coil pipe itself can absorb a certain amount of deformation, will not cause the thermal expansion deformation of pipeline system.
