PPR管的规格参数：
| 公称外径 | 平均外径 | S5 | S4 | S3.2 | S2.5 | S2 | | dn,mm | de,min,mm | de,max,mm | 公称壁厚en,mm | | 12 | 12.0 | 12.3 | — | — | — | 2.0 | 2.4 | | 16 | 16.0 | 16.3 | — | 2.0 | 2.2 | 2.7 | 3.3 | | 20 | 20.0 | 20.3 | 2.0 | 2.3 | 2.8 | 3.4 | 4.1 | | 25 | 25.0 | 25.3 | 2.3 | 2.8 | 3.5 | 4.2 | 5.1 | | 32 | 32.0 | 32.3 | 2.9 | 3.6 | 4.4 | 5.4 | 6.5 | | 40 | 40.0 | 40.4 | 3.7 | 4.5 | 5.5 | 6.7 | 8.1 | | 50 | 50.0 | 50.5 | 4.6 | 5.6 | 6.9 | 8.3 | 10.1 | | 63 | 63.0 | 63.6 | 5.8 | 7.1 | 8.6 | 10.5 | 12.7 | | 75 | 75.0 | 75.7 | 6.8 | 8.4 | 10.3 | 12.5 | 15.1 | | 90 | 90.0 | 90.9 | 8.2 | 10.1 | 12.3 | 15.0 | 18.1 | | 110 | 110.0 | 111.0 | 10.0 | 12.3 | 15.1 | 18.3 | 22.1 | | 125 | 125.0 | 126.2 | 11.4 | 14.0 | 17.7 | 20.8 | 25.1 | | 140 | 140.0 | 141.3 | 12.7 | 15.7 | 19.2 | 23.3 | 28.1 | | 160 | 160.0 | 161.5 | 14.6 | 17.9 | 21.9 | 26.6 | 32.1 |
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