I.Features：

PEX-AL-PEX composite pipe is composite pipe of five layers, inside and outside layers of which are made of Cross-Linked (PEX), tightly bonded with melt adhesive to the mid-layer of aluminum core which is longitudinally welded in a butt-welded or overlap-welded way, this kind of pipe is the perfect union of metal and the plastic ones.

II.Specification:

Overlapped welding

Butt welding

III.Advantages:

1.Compared with the metal pipe, the composite pipe has the same strength, easy to bend, reluctant to retain former shape;

2.Super properties of high temperature, high pressure and corrosion resistance;

3.Smooth inner surface of the pipe reduces resistance to the fluids. The ability to conduct water is 30% more efficient;

4.Good property of heat preservation, heat conduction coefficient is 0.45W/m.k,which is much less than metal pipes and it can save insulation materials outside the pipe;

5.Easy to cut and install; 

6.Life pan of the composite pipe is more than 50 years.

IV. Technical Parameters:

V.Application:

1.Under floor heating;

2.Heating system of Cali duct and wall, the equipment for snow melting in cold regions;

3.Heat and cold pipes for life, solar energy water heater, irrigation engineer in agriculture;

4.Pipes for coal gas and natural gas, air-condition and blower;

5.Pipes for electric wire and cable;

6.Pipes for oil and industrial liquids transportation.