Air-filled rubber dam is also called inflatable rubber dam. It is big bladder made of rubber( Outer rubber material: EPDM) and carcass. It is flexible water retaining movable dam with air as filling medium. There are two types of inflatable dams, i.e. book ridge type and spoiler type. Differentiation from water-filled rubber dams: Air is used as filling medium, which is environmentally friendly, easy to take and discharge, and cost-free for operation. Dam filling and dam dropping time: generally 30-50 minutes, fast dam filling speed, short dam collapse time, high degree of self-control, simple operation and management.
The design and production are carried out according to international standards. The design safety factor is 8.5, the design service life is 25-30 years, and the thickness of the dam bag is 1.5-2 times that of the water-filled rubber dam. Its service life is 10 years higher than that of water-filled rubber dam, and its operation is safer.
The dam foundation is narrower, the area of dam bag is smaller, the space of filling and draining equipment, control system and management house is smaller, and the total cost of the project is more economical than that of the water-filled rubber dam. Among them, the investment of foundation floor can be saved by 10%, the investment of filling and draining control system can be saved by 80%, and the overall investment can be saved by nearly 30% compared with that of water-filled rubber dams.
The air tightness requirements of inflatable rubber dams are even higher. The whole process of dam bag fabrication must be seamless. The surface of the dam is more smooth, and there is no deformation in long term operation.
The following two pictures are a comparison of rubber dams produced by two different processes:
The mature automatic filling and draining control system of inflatable rubber dam can automatically adjust dam height and inflatable pressure by liquid level sensor and pressure sensor, and realize automatic control and remote control to a greater extent. The management is simple, and the operation and management cost brought by automatic control is less than that of water inflatable rubber dam. Sunny Rubber is professional manufacturer of integral inflatable rubber dams.
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