pe-xb is laminated with the alloy aluminuim and special glue in the middle.it is also called five layers pipe:PEXb/glue/aluminium/glue/PEXb.PAP pipe can be used for water and gas.

advantages:

1 easy to cut and stall,with brass fitting for connect.it can be rolled and packaged in desired length and easily bent,the weight is only 1/10 of metal pipe,so lower transportation fee and lower cost.much labor cost can be saved

2smooth inner surface of the pipe reduces resistance to the fluids.the ability to transport water is 30%more efficient

3 the temperature ranges from -40 degree centigrade to 95 degree centigrade.heat conduction coefficient is only 0.45W/m.k

4 light weight,only 1/10 of galvanized pipes and lower transportation fees and lower cost

5 lifespan of the pipe is more than fifty years(based on normal use)

PEX