The **11855 Hollow Bulb Dam Gate Seal** refers to a specific model or type of hollow bulb seal used in dam gates and other hydraulic structures. The number "11855" likely indicates a particular design specification, part number, or standard reference for the seal. These seals are critical components in ensuring that dam gates function effectively by preventing water leakage when the gates are closed.
### Key Features of the 11855 Hollow Bulb Dam Gate Seal:
1. **Hollow Bulb Design**: - The "hollow bulb" refers to the shape of the seal, which typically features a hollow, cylindrical section that compresses under pressure to form a watertight seal. - This design allows the seal to adapt to the gate's surface and any irregularities, ensuring a consistent seal even under varying pressure conditions.
2. **Size and Specifications**: - The specific dimensions and properties of the "11855" model would be defined by the manufacturer or the standard it adheres to. These details would include the diameter of the bulb, the thickness of the seal, and other critical measurements that dictate its suitability for specific applications. - If "11855" is a reference number, it could include details such as the material composition, maximum pressure handling, and recommended usage scenarios.
3. **Material**: - Hollow bulb seals like the 11855 model are typically made from durable elastomeric materials, such as EPDM rubber, neoprene, or other synthetic rubbers. These materials are chosen for their flexibility, durability, and resistance to environmental factors such as UV light, water, and temperature extremes. - The choice of material ensures that the seal can maintain its integrity over time, even under continuous exposure to water and varying pressure conditions.
4. **Applications**: - The 11855 Hollow Bulb Dam Gate Seal is used in a variety of hydraulic structures, including spillway gates, sluice gates, and radial gates. Its design is intended to provide a reliable seal that prevents water from leaking past the gate when it is in the closed position. - It is particularly suitable for situations where a robust, flexible seal is required to maintain the integrity of the dam structure.
5. **Performance**: - The hollow bulb design allows the seal to compress and expand as needed, creating a tight seal that can handle fluctuations in water pressure and movement of the gate. - The specific model 11855 would have performance characteristics tailored to the needs of the particular dam or hydraulic system, such as the ability to withstand high pressure, resist wear and tear, and provide long-term sealing capability.
6. **Installation and Maintenance**: - Proper installation is crucial for the seal to function correctly. The seal must be aligned and positioned so that it compresses fully when the gate is closed, ensuring a watertight seal. - Regular maintenance, including inspections for wear or damage, is necessary to ensure the seal continues to perform effectively. Over time, the seal may need to be replaced if it shows signs of degradation.
### Benefits:
- **Effective Sealing**: The hollow bulb design provides a reliable seal that can adapt to the gate's surface, preventing water from leaking through.- **Durability**: Constructed from high-quality materials, the 11855 seal is designed to withstand the harsh environmental conditions typically found in dam operations.- **Flexibility**: The seal's ability to compress and expand allows it to maintain a consistent seal even when the gate or surrounding structure shifts or experiences pressure changes.
### Summary: