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P. 3

Permissible Operating Pressures
                                                                                                  Properties of OXYPEX Piping Systems
                        DIN 16893 PEX PIPING SYSTEMS  Projected Service Life
                           (Hot and Cold Water)
           Temperature  Service Life Year  PN 12.5   Safety Factor 1.5  SDR 7.4  The table on the left provides more detailed  (Outer Diameter)  ( Wall Thickness)  Dimension Ratio  Nominal   Class of Vesbo OxyPex   Coil Length  Permeability Ratio
                                                                                                    D                                    S                                 Standard
                                                                                                                                                           Oxygen
                                                                                                                                       Pipes
                                                                                                                           pressure
                       SDR 11
                              SDR 9
                                                                                                                                                   m
                                                                                                                                                          mg.O 2 /m².day
                                                                                                   mm
                                                                                                            mm
                              PN 16
                                     PN 20
                        Allowable Working Pressure (bar)  information on permissible pressures of various  16  1.8   SDR 9  PN 16  1/8; 2/8; 4/10; 5/8  160.0, 200.0, 400.0,   <0.1
                                                                                                             2.0
                 1     13.2   16.6   20.9                                                                    2.2     SDR 7.4  PN 20  1/10; 2/10; 4/10; 5/10  500.0, 600.0
                 5     12.9   16.3   20.5     pipe pressure ratings at various temperatures.                                       1/8; 2/8; 4/10; 5/8  160.0, 200.0, 400.0,
         20°C    10    12.8   16.2   20.4                                                          17        2.0     SDR 8.5  PN 16             500.0, 600.0  <0.1
                 25    12.7   16.0   20.1                                                                    2.0     SDR 11  PN 12.5  1/6; 2/6; 4/8; 5/6  160.0, 200.0, 400.0,
                 50    12.6   15.9   20.0                                                          20        2.8     SDR 7.4  PN 20  1/10; 2/10; 4/10; 5/10  500.0,   <0.1
                 1     11.7   14.7   18.5                                                          25        2.3     SDR 11  PN 12.5  1/6; 2/6; 4/8; 5/6  160.0, 200.0  <0.1
                 5     11.5   14.4   18.2     Examples                                                                             1/6; 2/6; 4/8; 5/6
         30°C    10    11.4   14.3   18.1                                                          32        2.9     SDR 11  PN 12.5            160.0, 200.0  <0.1
                 25    11.3   14.2   17.9
                 50    11.2   14.0   17.7     Vesbo Multilayer OXYPEX SDR 11 hot and cold
                 1     10.4   13.1   16.5
                 5     10.2   12.8   16.2
         40°C    10    10.1   12.7   16.1     water pipe, transporting water at a temperature
                 25    10.0   12.6   15.9                                                       Features               Test Method       Unit       Value
                 50     9.9   12.5   15.7     of 30°C is projected to last more than 50 years
                 1      9.3   11.7   14.7                                                       Density                DIN 53 497        g/cm 3     0.94
                 5      9.1   11.4   14.4                                                       Linear Expansion Coefficient  DIN 53 752   K -1     2x10 -4
         50°C    10     9.0   11.3   14.3     under normal operating conditions with an
                 25     8.9   11.2   14.1                                                       Thermal Conductivity   DIN 52 612-1     WK -1 m -1  0.41
                 50     8.8   11.1   14.0     operating pressure of 11.2 bar.
                 1      8.3   10.4   13.1                                                       Elastic Modulus        ASTM D790        N/mm 2       600
                 5      8.1   10.2   12.9                                                       Surface Resistance     DIN 53482          W         >10 12
         60°C    10     8.0   10.1   12.8
                 25     7.9   10.0   12.6                                                       Elongation at Break    ASTM D638          %          400
                 50     7.9    9.9   12.5     Vesbo Multilayer OXYPEX SDR 7.4 hot and cold      Impact Strength        DIN 53453        m.J.mm 2   No cracking
                 1      7.4    9.3   11.8
                 5      7.3    9.1   11.5                                                       Degree of Cross-Linking  DIN 16892        %         Min.65
         70°C    10     7.2    9.1   11.4     water pipe, transporting water at a temperature
                 25     7.1    9.0   11.3
                 50     7.0    8.9   11.2     of 70°C is projected to last more than 50          •  Class 1 (70 °C / 8 bar)  •  Class 2 (70 °C / 8 bar)  •  Class 4 (60 °C / 10 bar)  •  Class 5 (60 °C / 8 bar)
                 1      6.6    8.4   10.5
                 5      6.5    8.2   10.3
         80°C
                 10     6.4    8.1   10.2     years under normal operating conditions with
                 25     6.4    8.0   10.1
                 1      6.0    7.5    9.5
         90°C    5      5.8    7.4    9.3     an operating pressure of 11.2 bar.
                 10     5.8    7.3    9.2
                 1      5.7    7.1    9.1
         95°C
                 5      5.5    7.0    8.8
                                              SDR is the short form of Standard Dimension Ratio
       Quality Assurance & Health             SDR = Diameter / Wall Thickness
       Certifications                         SDR = d /s = Pipes series index from ISO 4065
                                                                                                   A high-temperature flexible plastic pressure pipe with a 35 year
                                                                                                   history of successful use in the European market with extensive
                                                                                                   testing for durability and material performance, made of cross-
                                                                                                   linked high density PEX .
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