PEX Tube Performance Index:
Test Item Technology Requirement
Crosslinking Degree(%) ≥65
LongitudinalReversion (%) ≤3
Hydraulic Test 20,12.0Mpa of hoop stress,1h,no seepage,no broken
 95,4.8Mpa of hoop stress,1h, no seepage,no broken
 95,4.7Mpa of hoop stress,22h, no seepage,no broken
 95,4.6Mpa of hoop stress,165h, no seepage,no broken
 95,4.4Mpa of hoop stress,1000h, no seepage,no broken
Density (g/cm3) ≥0.94
Tensile-strength (N/mm2) 20   19~26      100    9~13
elongation at break(%) 20  350~550       100   500~700
Temperature() -70~+95
Linear Expansibitlity (m/m°k) 20  1.4×10-4       100   2.05×10-4
Vicat Softening Point() 133
Coeffient of Heat Conductivity (W/m°k) 0.35
5.Anti-UV Layer: The carbon black content should be no less than 2.5% in conformity with the national concerned stipulations.
6.Sanitation: The inner tube of the PEX Tube should meet the requirements of GB/T17219 criterion.
7.Advantages of the PEX Tube:

Anti-ultraviolet, green environment
Firm connection, safe without leakage
Age resistance, anticorrosive, long service life