+86 19932391223 sinorubberdam@outlook.com
Water filled rubber dam is a tear-shaped rubber dam filled with stabilizing water. Normally, it is considered to be expensive and slow to fill but more stable to provide optimal control over upstream water levels compared with air filled rubber dam.
Features:
Tear-shaped rubber body needing wider concrete sill.
Stabilizing water-filling with heavier weight to minimize vibrations.
Ideal for applications with tail water elevation or broad watercourses.
Capable to withstand a higher overtopping up to 50% of the dam height.
More evenly during the inflating and deflating procedure.
Can be operated without electric power.
Lower maintenance cost.
Optional water circulation system to eliminate the possibility of freezing in winter.
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 |
Hebei Heng Yang Equipment Manufacturing Co., Ltd
