Rubber dam is a new type hydraulic structure. It is made of sized high strength fabric adhering rubber (also called by "rubber weir") which forms the rubber bag anchoring to the foundation. After full-filled with water or air, it can be used for water retention. Rubber dam has many advantages, such as the rubber dam project only cost 1/3-2/3 of the conventional dam, short construction time, low running cost, the investment can be take back in the same year which is highly appreciated by little hydraulic power station. Besides, the rubber dam have lighter self-weight, and the collapsing dam do not obstruct water, good oscillation absorption performance etc.
As the developing of multiple market tendencies and rubber technology, a new more advanced rubber dam type-bookend rubber dam, appears on the world market.
Our company begins to design and produce the bookend rubber dam from 2005, and its advantages are as follows:
（一）Bookend rubber dam is formed and vulcanized at factory in one time; it has solved the airtight performance of the conventional overlap rubber dam, and improved the safety factor and its life span
（二）The bookend rubber dam seems like a book, and the bookend area are disposed .In this way, it solved the problems during the conventional air filled rubber dam running, increased the transverse tensile strength, reduced the rubber dam oscillation and the impacted of overflow water.
（三）The bookend rubber dam have good effect on collapse. There is some air or water remaining in the conventional rubber dam when collapsing, which always forms a tobacco pipe shape water retention area. However, the bookend rubber dam can be deflated completed, to solve the problem.
（四）The bookend rubber dam was cut into trough shape in the bookend area in the same distance, which forming up a waterfall when the water over flow. It is a good sight.
（五）The bookend rubber dam commonly apply single anchor system, saving the foundation construction and half the anchor plates, and need no bottom gasket and level up gasket, simplifying the installation, saving the installation time, improving the rubber dam airtight performance.
（六）The bookend rubber dam use the self-inflation/deflation system. The advanced self adjustment system will control the height and air pressure of the rubber dam, through the signal of the liquid level sensor and pressure sensor. All the rubber dam projects are complete automatization, and can be easily managed.
（七）Combined with the advanced international technology, our company has manufactured the equipment specially used for the vulcanization of rubber dam. It strengthens the adhesion between the rubber and carcass, which highly improves the rubber dam quality.
As the developing of multiple market tendencies and rubber technology, a new more advanced rubber dam type-bookend rubber dam, appears on the world market.
Our company begins to design and produce the bookend rubber dam from 2005, and its advantages are as follows:
（一）Bookend rubber dam is formed and vulcanized at factory in one time; it has solved the airtight performance of the conventional overlap rubber dam, and improved the safety factor and its life span
（二）The bookend rubber dam seems like a book, and the bookend area are disposed .In this way, it solved the problems during the conventional air filled rubber dam running, increased the transverse tensile strength, reduced the rubber dam oscillation and the impacted of overflow water.
（三）The bookend rubber dam have good effect on collapse. There is some air or water remaining in the conventional rubber dam when collapsing, which always forms a tobacco pipe shape water retention area. However, the bookend rubber dam can be deflated completed, to solve the problem.
（四）The bookend rubber dam was cut into trough shape in the bookend area in the same distance, which forming up a waterfall when the water over flow. It is a good sight.
（五）The bookend rubber dam commonly apply single anchor system, saving the foundation construction and half the anchor plates, and need no bottom gasket and level up gasket, simplifying the installation, saving the installation time, improving the rubber dam airtight performance.
（六）The bookend rubber dam use the self-inflation/deflation system. The advanced self adjustment system will control the height and air pressure of the rubber dam, through the signal of the liquid level sensor and pressure sensor. All the rubber dam projects are complete automatization, and can be easily managed.
（七）Combined with the advanced international technology, our company has manufactured the equipment specially used for the vulcanization of rubber dam. It strengthens the adhesion between the rubber and carcass, which highly improves the rubber dam quality.
Features
- long life
- Bookend rubber dam is formed and vulcanized at factory in one time; it has solved the airtight performance of the conventional overlap rubber dam, and improved the safety factor and its life span
- solved the conventional problems
- The bookend rubber dam seems like a book, and the bookend area are disposed .In this way, it solved the problems during the conventional air filled rubber dam running, increased the transverse tensile strength, reduced the rubber dam oscillation and the impacted of overflow water.
- good effect on collapse
- The bookend rubber dam have good effect on collapse. There is some air or water remaining in the conventional rubber dam when collapsing, which always forms a tobacco pipe shape water retention area. However, the bookend rubber dam can be deflated completed, to solve the problem.
- beautiful
- The bookend rubber dam was cut into trough shape in the bookend area in the same distance, which forming up a waterfall when the water over flow. It is a good sight
- improve the airtight performance
- The bookend rubber dam commonly apply single anchor system, saving the foundation construction and half the anchor plates, and need no bottom gasket and level up gasket, simplifying the installation, saving the installation time, improving the rubber dam airtight performance.