Hollow wall spiral pipe
Executive standard: GB/T19472.2-2004 Polyethylene Structure-wall Piping System for Underground Usage--part 2: Polyethylene Spirally Enwound Structure-wall Tubular Products.
Executive Standard
GB/T19472.2-2004 Polyethylene Structure-wall Piping System for Underground Usage--part 2: Polyethylene Spirally Enwound Structure-wall Tubular Products.
Nominal Ring Rigidity
SN4, SN8
Nominal Inner Diameter
DN/IN150~1500
Characteristics
HDPE double-wall spiral pipes produced in our company, made of HDPE raw material without toxicity and side effect, are widely applied to drainage in city, sewage discharge in factory and water supply and drainage in farming and stockbreeding industries, which is a new type green environmental protection product without contamination and any side effect.
HDPE double-wall spiral pipes produced in our company have good properties such as chemical corrosion resistance, impact resistance, wear resistance and cold resistance.
Electro-thermal welding or thermal contract belt is used for installing and connecting HDPE double-wall spiral pipe. Connecting piece and pipe are welded into an organic whole with sealed connection, high connecting strength and non-leakage on pipe fitting as well as convenient construction and good connecting property.
Physical indices of characteristics:
No. |
Item |
Performance index |
1 |
Density (g/cm3) |
≥0.93 |
2 |
Thermal expansion factor (10/℃) |
11~16 |
3 |
Tensile strength (23℃) Mpa |
≥20.7 |
4 |
Modulus of elasticity |
≥800 |
5 |
Soften temperature (℃) |
126 |
6 |
Fragile temperature (℃) |
-70 |
7 |
Water absorption percentage (%) |
<0.01 |
8 |
Breaking elongation percentage (%) |
>350 |
9 |
Thermal stability (200℃) |
≥20 |
size
Product specification table (High compression resistant double layer enwinded pipe) |
Reference standard: GB/T 19472.2 / KPS M2009 / ASTM F894 |
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Specification 1 (SN 4.0 ) |
Specification 2 (SN 8.0) |
Nominal size |
Inside diameter mm |
Outside diameter mm |
Wall height mm |
Wall thickness mm |
Outside diameter mm |
Wall height mm |
Wall thickness mm |
150 |
150 |
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|
174 |
12 |
1.4 |
200 |
200 |
224 |
12 |
1.4 |
230 |
15 |
1.8 |
250 |
250 |
278 |
14 |
1.6 |
280 |
15 |
2.0 |
300 |
300 |
328 |
14 |
1.8 |
340 |
20 |
2.5 |
350 |
350 |
380 |
15 |
2.0 |
394 |
22 |
2.8 |
400 |
400 |
438 |
19 |
2.5 |
450 |
25 |
3.4 |
450 |
450 |
494 |
22 |
2.8 |
508 |
29 |
3.8 |
500 |
500 |
550 |
25 |
3.4 |
562 |
31 |
4.0 |
600 |
600 |
662 |
31 |
3.8 |
678 |
39 |
5.0 |
700 |
700 |
762 |
31 |
4.0 |
788 |
44 |
5.5 |
800 |
800 |
878 |
39 |
4.0 |
900 |
50 |
6.5 |
900 |
900 |
988 |
44 |
4.0 |
1012 |
56 |
7.5 |
1000 |
1000 |
1100 |
50 |
4.0 |
1124 |
62 |
9.0 |
1200 |
1200 |
1324 |
62 |
4.5 |
1350 |
75 |
10.0 |
1500 |
1500 |
1650 |
75 |
6.0 |
1680 |
90 |
11.0 |