PEXb Tube for Water System

Pexb-anUV pipe has two layers, the material of its internal layer is silicane crosslinked polyethylene, the white one ,green environment, has the capacity of heat-resistance for a long time and aging resistance with innocuity as well as corrosion resistance.And the external layer , black one,mix with polyethylene,carton black and oxidation inhibitor,has the excellent capacity of ultraviolet radiation resistance , Compared with current common metal pipes, it is more heat-preservation and energy-saving. Therefore, it will be a new type of pipe with benefit to environmental protection.
Technical Indexes:
Specification:
Outside Diameter(mm) SDR
 11 9 7.3
 PEX Series
 5 4 3.15
 Wall thickness (mm) Weight(kg/m) Wall thickness(mm) Weight (kg/m) Wall thickness(mm) Weight(kg/m)
12 1.3 0.045 1.4 0.049 1.7 0.059
16 1.5 0.083 2.0 0.083 2.2 0.098
20 2.0 0.111 2.3 0.131 2.8 0.153
25 2.3 0.169 2.8 0.197 3.5 0.238
32 2.9 0.268 3.6 0.323 4.4 0.382
40 3.7 0.425 4.5 0.503 5.5 0.594
50 4.6 0.659 5.6 0.78 6.9 0.926
63 5.8 1.04 7.1 1.24 8.7 1.46
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
Anti-UV Layer: The carbon black content should be no less than 2.5% in conformity with the national concerned stipulations.
Sanitation: The inner tube should meet the requirements of GB/T17219 criterion.
Advantages of the product
Anti-ultraviolet, green environment
Firm connection, safe without leakage
Age resistance, anticorrosive, long service life
Service Range
Pipeline Network of Solar Energy Installations
Supply System of pure water
Cold and hot water system in building
Central Air-conditioning System
Irrigation System of Agriculture and Garden
Storm Sewer System