Comparison of sdr & pressure ratings (pn) for pe100 material sdr 41 sdr 26 sdr 21 sdr 17 sdr 13.6 sdr 11 sdr 9 sdr 7.4 pn 4 pn 6.3 pn 8 pn 10 pn 12.5 pn 16. For simplicity, the dimensions of the pipe have been referred in terms of the standard dimension ratio (sdr) where: The field conditions under which.
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Table below provides dimensions of hdpe pipes for pe100 material of rating pn10, sdr 17 or s8.
Why is the sdr to pn ratio important?
Pe pipe has grown rapidly in popularity and polyethylene pipe connected by compression or electrofusion fittings is now largely made from pe100. The following section provides a brief background of the various. Sdr = outside diameter/ wall thickness. Pn is the nominal working.
The usage areas of pipes with different sdr indexes also differ. Since the pn values are no longer specified in the standard, the new s series are not assigned with corresponding pn values. Pe100 polyethylene pipe sizes mean dimensions according to as/nzs 4130 series 1 sdr13.6 pn 12.5 sdr11 pn 16 sdr9 pn 20 sdr 7.4 pn 25 wt The pipes of this material cannot be designated with pn;
