Description
Radial Gate – Water Flow Control for Dams and Locks
The radial gate, also referred to as the “Tainter gate,” represents an advanced and highly effective solution for managing water flow through dam spillways and river locks. Engineered to endure demanding environmental and operational conditions, this radial gate features a robust, reinforced curved panel that is supported by sturdy horizontal beams. Additionally, two main vertical beams transfer the load efficiently to the radial arms. These radial arms are equipped with trunnions mounted on frames, which facilitate smooth and precise circular rotation for both opening and closing operations.
When the radial gate is in the closed position, the curved panel effectively withstands substantial water pressure through its radial arms and pivot system situated on the dry side of the gate. The dimensions of the radial gate can be customized to meet specific site conditions and civil engineering requirements, ensuring a perfect fit for a wide range of applications. A rubber sealing system is incorporated to guarantee a watertight closure, while the gate is also capable of operating in a partially open position to manage and regulate the downstream water flow effectively.
There are several flexible solutions available for connecting the trunnions to the concrete structure. These options include hinges connected to concrete teeth protruding from the side walls, trunnions embedded directly into the side walls, or hinges connected to steel trunnion beams that are anchored to the side walls with post-tensioned cables. Additionally, various operating systems can be employed, including hydraulic cylinders, electric motors, or bespoke systems tailored to the specific needs of the client.
Different solutions for connecting the trunnions to the concrete structure :
- Hinge connected to a concrete tooth protruding from the side walls;
- Trunnion embedded in the side walls;
- Hinge connected to a steel trunnion beam anchored to the side walls using post-tensioned cables;
Possibility to provide a complete set of accessories :
- Hydraulic unit;
- Electrical cabinet;
- Original spare parts;
All phases of the technical design, engineering, and manufacturing process, including final testing, are meticulously carried out by Robex® in strict accordance with the UNI EN ISO 9001 quality management system.
- Dam spillways
- River locks
- Flood management
- Upstream and downstream water flow control
- Water regulation systems for hydroelectric plants
- Water management structures in civil engineering works
- Diversion channels and penstocks
Main Materials
| Component | Proposed Material |
|---|---|
| Main structural elements: plate, steel profiles, portal frame,flange, upper frame cover, bars, anchoring, integrated components | S355J2G3 EN 10025 (or equivalent) |
| Seat gasket | AISI 316 (or equivalent) |
| Seals | Neoprene rubber (or equivalent) |
| Bolts for gasket attachment | A2-70 (or equivalent) |
Flexible and customized design solutions :
- The dimensions of the gates can be modified to suit existing site conditions or special design requirements for civil engineering works.
Sealing system: rubber seals at the bottom, at the top (if necessary), and on the side edges, with a metal housing (seat gasket made of stainless steel fixed to the concrete frame).
Capability to operate in a partially open position to allow for regulating downstream water flow.
