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Help Center30 Years Long Service Life High Quality Good Price Inflatable Water Filled Dam Rubber Water Dam for River
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Water inflatable rubber dam is a kind of water-inflated stable tear-shaped rubber dam. Rubber dam consists of civil works, dam bag, anchor, filling drainage facilities and control system. It is made of strength canvas as reinforced framework and rubber layer which ensure tightness of the rubber layers. Compared with air inflatable rubber dam, water inflatable rubber dam is more expensive and slower to fill but more stable to provide optimal control over upstream water levels. It is fixed to concrete to create a permanent dam or floodgate. Water can spill over the top automatically without additional support or adjustment. When the flood is coming, rubber weir can completely collapse, does not have water resistance. It is usually used to retain water, adjust the water level, irrigation, generate hydro-electric power, control flood, etc.
Specification
Material structure: one cloth two rubber, two clothes three rubber, three clothes four rubber, etc.
Color: blue, black, red, gray, purple, etc.
Medium in dam: water.
According to installation method:
Single anchor.
Double anchor (pillow-like dam and inclined dam).
According to anchored method:
Bolt anchored.
Wedge anchored.
Customization can be available.
| Item | Unit | Outer layer | Middle layer, inner layer | Cover rubber sheet | |
|---|---|---|---|---|---|
| Tensile strength at break | MPa | 14 | 12 | 6 | |
| Elongation at break | % | 400 | 400 | 250 | |
| Permanent deformation at break | % | 30 | 30 | 35 | |
| Hardness (shore A) | 55-65 | 50-60 | 55-65 | ||
| Brittleness temperature | °C | -30 | -30 | -30 | |
| Hot water aging (100 °C × 96 h) | Tensile strength at break | MPa | 12 | 10 | 5 |
| Elongation at break | % | 300 | 300 | 200 | |
| Hot water aging (70 °C × 96 h) | Tensile strength at break | MPa | 12 | 10 | 5 |
| Elongation at break | % | 300 | 300 | 200 | |
| Volume expansion ratio | % | 15 | 15 | 15 | |
| Ozone aging: 10000 pphm, temperature 40 °C, stretching 20%, no cracking | min | 120 | 120 | 100 | |
| Wear loss (akron) | cm3/1.61 km | 1.0 | 1.0 | 1.2 | |
| Flexibility, no cracking | Ten thousand times | 20 | 20 | 20 | |
| Code | Height (m) | Inner pressure / outer pressure | Security coefficient (k) | Bottom gaskets width (m) | Dam bag perimeter (m) |
|---|---|---|---|---|---|
| WIRDS-1 | 1.0 | 1.6 | > 8 | 1.8 | 3.70 |
| WIRDS-2 | 1.5 | 1.55 | > 8 | 2.05 | 5.40 |
| WIRDS-3 | 2.0 | 1.52 | > 8 | 3.40 | 7.10 |
| WIRDS-4 | 2.5 | 1.46 | > 8 | 4.36 | 8.80 |
| WIRDS-5 | 3.0 | 1.4 | > 8 | 5.45 | 10.70 |
| WIRDS-6 | 3.5 | 1.35 | > 8 | 6.8 | 12.70 |
| WIRDS-7 | 4.0 | 1.32 | > 8 | 7.96 | 14.65 |
| WIRDS-8 | 4.5 | 1.3 | > 8 | 9.15 | 16.50 |
| WIRDS-9 | 5.0 | 1.25 | > 8 | 11.1 | 19.08 |
| WIRDS-10 | 5.5 | 1.25 | > 8 | 12.13 | 20.90 |
| WIRDS-11 | 6.0 | 1.25 | > 8 | 13.27 | 22.80 |
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