Water Fin Rubber Dam
- Category: >>>
- Supplier: Qingdao Huahai Environmental Protection Industry Co. Ltd.
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Product Overview
Description
Product Description
Advantages:
1. Low cost;
2. Short construction time;
3. Simple structure;
4. Easy to manage;
5. Strong sealing effect;
6. Low resistance to water flow in flood season;
7. Perfect seismic performance.
Rubber dam is made of high-strength synthetic fabrics and compound rubber, anchored in the concrete foundation to form a sealed air bladder inflated with water or air in dry seasons to store water. In rainy seasons, water or air inside of rubber bladder would be discharged to help release floodwater from river course. Compared with common civil works, the advantages of rubber dam are less engineering budget, shorter construction period, extended service life, simplified maintenance and improved vibration resistance. Rubber dam can be adjusted at any height and overflowed so it is widely used for irrigation, power generation, flood control and urban landscaping in many areas.
The rubber bladder is made of strength canvas and rubber layers. The canvas serves as the force-bearing frame of the dam with good flexural stress resistance and excellent adhesion function. The rubber layers consist of out-layer, middle-layer and inner-layer to protect the canvas.
Physical and mechanical properties of the rubber material for making rubber bladder
Item | Unit | Outer layer | Middle layer,Inner layer | Cover rubber sheet | Test standard | |
Tensile strength at break≥ | Mpa | 14 | 12 | 6 | GB/T528-2009 | |
Elongation at break≥ | % | 400 | 400 | 250 | GB/T528-2009 | |
Permanent deformation at break≤ | % | 30 | 30 | 35 | GB/T528-2009 | |
Hardness(shore A) | . | 55~65 | 50~60 | 55~65 | GB/T531.1-2008 | |
Brittleness temperature≤ | °C | -30 | -30 | -30 | GB/T1682-1994 | |
Hot air aging (100°C*96h) | Tensile strength at break≥ | Mpa | 12 | 10 | 5 | GB/T3512-2001 |
Elongation at break≥ | % | 300 | 300 | 200 | GB/T3512-2001 | |
Hot water aging (70°C*96h) | Tensile strength at break≥ | Mpa | 12 | 10 | 5 | GB/T1690-2010 |
Elongation at break≥ | % | 300 | 300 | 200 | GB/T1690-2010 | |
Volume expansion ratio≤ | % | 15 | 15 | 15 | GB/T1690-2010 | |
Ozone aging: 10000pphm, temperature 40°C, stretching 20%, no cracking | min | 120 | 120 | 100 | GB/T7762-2003 | |
Wear loss( Akron) ≤ | cm³/1.61km | 1.0 | 1.0 | 1.2 | GB/T1689-1998 | |
Flexibility, no cracking | Ten thousand times | 20 | 20 | 20 | GB/T3934-2006 | |
Automatic control system
The automatic control system consists of computer software technology, PLC control technology, communication and transmission technology and sensor test technology etc. The system can automatically adjust the inflation and deflation of the tubes according to the water level, which can be used in daily operation and flood emergency control for the safety of the dam. Parameters can be set and adjusted remotely through monitoring software for video surveillance and daily management. The system can also be controlled through mobile phone SMS. One control system can manage several tube dams in a river.
As the major products of our company, water fin rubber dams are produced with advanced technology and professional experience.
Inflatable rubber dam has its own anchor method:
This rubber dam is suitable for the projects with lower water level and large span sluice widely used for irrigation, power generating, flood control and urban landscaping.
Huahai has offered more than 4000 rubber dams throughout China and in Vietnam, Bangladesh and Iran and Indonesia etc. Huahai attaches significance to customer satisfaction and credit business philosophy and offers quality products and reliable after-sales services to customers.
Customers can choose different types for different needs, and we can supply customers with technical materials and special support .
Company Information
Qingdao Huahai Environmental Protection Industry Co., Ltd. was founded in 1975, formerly known as Qingdao No. Seven Rubber Products Plant. Our company lies in Qingdao seashore, covering an area of 93,000 square meters with building area of 55,000 square meters, and employs over 400 staff.
We have scientific research, production, sale and service. Our leading products are rubber sheets, rubber matsrubber dams, rubber booms and oil spill response equipment. Our rubber sheets, rubber mats and rubber dams have been exported to Japan, Korea, America, Europe and other countries and regions.
"Satisfaction from customers is our persevering pursuit" is the tenet we have always been following. We warmly welcome friends from all circles to contact us for potential cooperation.
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