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Metric Pipe Pressure Re-Rating Chart for Water

Metric Polyethylene Pipe ­ AS4130 Series 1 ­ All Diameters

This chart is used to determine the maximum working pressure and expected life of AS4130 metric polyethylene pipe when it is subjected to temperatures greater than 20°C. Both the maximum pressure rating and life expectancy of polyethylene pipe are affected by temperature and operation above 40°C is not recommended without further consultation. Example Metric PE100 pipe is to be used above ground where the water supply and pipe can reach temperatures of 40°C. The maximum pressure in the system is 900kPa. The chart below indicates that PN10 has a maximum pressure rating of 750kPa at 40°C and therefore is clearly not sufficient. After factoring in a 10% safety margin (990kPa), PN12.5 can be recommended for this system. At this temperature the pipe has a design life in excess of 50 years.

PE80B

Nominal SDR* Pressure Rating 41 PN3.2 33 21 17 13.6 11 9 7.4 PN4 PN6.3 PN8 PN10 PN12.5 PN16 PN20 20ºC 320 400 630 800 1000 1250 1600 2000

Maximum Working Pressure (kPa) at Various Temperatures 50 yrs 25ºC 320 400 630 800 1000 1250 1600 2000 30ºC 280 350 550 700 880 1090 1400 1750 35ºC 260 320 500 640 800 1000 1280 1600 40ºC 240 300 470 600 750 940 1200 1500 45ºC 220 280 440 560 700 880 1120 1400 36 yrs 24 yrs 12 yrs 50ºC 210 260 410 520 650 810 1040 1300 55ºC 190 240 380 480 600 750 960 1200 60ºC 180 230 350 450 560 700 900 1130 1 yr 80ºC 130 170 260 330 410 520 660 830

PE100

Nominal SDR* Pressure Rating 41 PN4 26 21 17 13.6 11 9 7.4 PN6.3 PN8 PN10 PN12.5 PN16 PN20 PN25 20ºC 400 630 800 1000 1250 1600 2000 2500

Maximum Working pressure (kPa) at Various Temperatures 50 yrs 25ºC 400 630 800 1000 1250 1600 2000 2500 30ºC 380 590 750 940 1180 1500 1880 2350 35ºC 360 560 710 890 1120 1430 1790 2240 40ºC 340 530 680 840 1060 1350 1690 2210 45ºC 320 500 640 800 1000 1270 1590 1990 36 yrs 24 yrs 12 yrs 50ºC 300 480 600 760 950 1210 1510 1890 55ºC 290 450 570 720 890 1150 1430 1790 60ºC 270 430 540 680 850 1090 1360 1700 1 yr 80ºC 210 340 430 530 670 860 1070 1340

* Standard Dimension Ratio

AUSTRALIA ­ PPI Corporation Pty Ltd (ABN 79 010 656 005) QLD Sales Office Ph: (07) 3865 2300 Townsville Sales Office Ph: (07) 4779 7322 NSW Sales Office Ph: (02) 8706 2400 VIC Sales Office Ph: (03) 9791 3700 SA Sales Office Ph: (08) 8447 2611 TAS Sales Office Ph: (03) 6248 5933 WA Sales Office Ph: (08) 9212 3200 NT Agent Territory Hardware Ph: (08) 8947 1250 EXPORT ENQUIRIES Ph: +61 7 3865 3699 Fax: (07) 3857 0058 Fax: (07) 4779 2509 Fax: (02) 8706 2499 Fax: (03) 9791 3900 Fax: (08) 8447 8117 Fax: (03) 6248 5988 Fax: (08) 9355 0675 Fax: (08) 8984 4461 Fax: +61 7 3857 0058

NEW ZEALAND ­ PPI Corporation (NZ) Limited Christchurch Ph: (03) 313 7956 Fax: (03) 313 5551 EMAIL: WEB: [email protected] www.ppi.com.au Date: 22nd August 2008

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