rpap5 （butt welding of aluminum-plastic composite pipe）
inner and outer adopt imported high temperature resistant polyethylene (pe-rt) raw materials, the middle is aluminum. between layers we use imported hot melt adhesive. according to implementation of the standards cj/t159----2006.
rpap5 to allow long-term working temperature is 95 ℃, allowing long-term working pressure 1.25mpa, temperature failure moment was 110 ℃. bursting pressure test value is7.98mpa ,far exceeded the national standard. the tests approve that rpap5 is heat-resistant and voltage-resistant.
一．main technical parameters
thermal conductivity    0.45w/(m•k)
thermal expansion     0.025mm/(m•k)
bending radius       ≥5d
medium temperature    -40℃----95℃
pipe ring radial direction   2400----3320n
gas permeability       0
pipeline inwall       roughness 0.0004mm
bursting pressure       6.0----9mpa 
working temperature     95℃  
working pressure       1.25mpa

二．range of application
building high-temperature radiator heating system
central air-conditioning piping system
solar pipeline system
wall-hung boilers heating pipe system
pharmaceutical companies on the system temperature water supply system，etc.