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| Polyethylene exterior guard pipe |
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| Compared with the traditional direct-buried insulation material, the polyethylene casing has the characteristics of high mechanical strength, impact resistance, environmental stress cracking resistance, corrosion resistance, low temperature resistance, easy welding, simple construction, strict sealing, no leakage and long service life. |
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| Implementation standards |
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| Straight pipe with supplied length of 6-12 meters |
| Nominal diameter |
Pipe inside diameter×Wall thickness |
Outer diamete×wall thickness |
Thickness of the insulation layer |
| 20 |
25×3 |
90×2.2 |
30.3 |
| 25 |
32×3 |
100×2.2 |
31.8 |
| 32 |
42×3 |
110×2.5 |
31.5 |
| 40 |
45×3 |
120×2.5 |
35 |
| 50 |
60×3.5 |
125×3 |
29.5 |
| 65 |
76×4 |
140×3 |
29 |
| 80 |
89×4 |
160×3 |
32.5 |
| 100 |
114×4 |
200×3.2 |
39.8 |
| 125 |
140×4.5 |
225×3.5 |
39 |
| 150 |
159×4.5 |
250×3.9 |
41.6 |
| 200 |
219×6 |
315×4.9 |
43.1 |
| 250 |
273×6 |
365×5.6 |
40.4 |
| 300 |
325×7 |
420×7 |
40.5 |
| 350 |
377×7 |
500×7.8 |
53.7 |
| 400 |
426×7 |
550×8.8 |
53.2 |
| 450 |
478×7 |
580×8.8 |
42.2 |
| 500 |
529×7 |
655×9.8 |
53.2 |
| 600 |
630×8 |
760×11.1 |
53.9 |
| 700 |
720×8 |
850×12 |
53 |
| 800 |
820×9 |
960×13 |
57 |
| 900 |
920×10 |
1054×14 |
53 |
| 1000 |
1020×10 |
1155×14 |
53.5 |
| 1200 |
1220×12 |
1380×15 |
65 |
| 1400 |
1420×14 |
1580×16 |
64 | |
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