Arch shaped steel gate

Arch shaped steel gate

The PG series steel composite gate is a new generation of water stop gate, which combines the advantages of steel gate and cast iron gate. The gate leaf is welded with Q235 or 16Mn medium plate, and the water stop surface is precision machined and matched with the cast iron gate frame to achieve the purpose of water stop. The anti-corrosion of the door leaf surface shall be carried out in accordance with the SL105 specification. This gate is easy to install and eliminates the hassle of frequently replacing the waterproof rubber during the operation of the steel gate. It is an ideal choice for large-span and high head water conservancy, hydropower, and water supply and drainage engineering. We can design and manufacture various specifications of PG steel composite gates according to user requirements.

Arch shaped steel gate

Steel composite gate: a water conservancy tool that combines rigidity and flexibility

In hydraulic engineering, the performance of gates directly affects flood control, irrigation, and navigation efficiency. As an innovative combination of traditional steel gates and concrete structures, steel composite gates have become an important choice for modern hydraulic engineering due to their "combination of rigidity and flexibility" characteristics.

Core feature: Composite design with complementary advantages

Steel composite gates use steel as the door panel and cast iron as the gate slot, combining the advantages of both. Firstly, outstanding strength and durability: Steel structures provide high tensile and compressive performance, and can withstand high water pressure and impact; Cast iron enhances its corrosion resistance, reduces the risk of rusting, and extends its service life. Secondly, it is more economical: compared to all steel structures, cast iron materials reduce material costs; At the same time, the composite structure has a moderate self weight, reducing the load on the opening and closing equipment and further saving operation and maintenance costs. Thirdly, strong adaptability: the steel ratio can be adjusted according to different working conditions, such as strengthening steel structures in high water pressure areas, adding cast iron protective layers in corrosive environments, and flexibly responding to complex needs.

Working principle: Sealing and regulation of collaborative force

Its operation relies on the synergistic effect of steel and cast iron. When closed, the steel structure panel tightly adheres to the door slot, using the material's own stiffness to form a sealing surface; When opened, the hand-operated opening and closing machine drives the steel frame, which lifts the entire door body. The cast iron, due to its rigid connection with the steel structure, moves synchronously without any obstruction. This mode of "steel force transmission and iron pressure bearing" not only ensures the flexibility of opening and closing, but also improves long-term stability.

Application scenario: Reliable barriers in multiple fields

Steel composite gates are widely used in scenarios such as reservoir spillways, river control gates, urban drainage pump stations, and coastal tidal barriers. For example, in the spillway of a reservoir, its high impact resistance can withstand the impact of floods; In urban waterlogging prevention and control, steel panels adapt to humid environments and reduce maintenance frequency; Coastal tidal barriers are protected against salt spray erosion through steel composites, ensuring long-term service. Compared to pure steel gates that are prone to corrosion, cast iron gates that are heavy and difficult to open and close, composite gates achieve a balance between cost, performance, and lifespan.

From "single material" to "composite innovation", steel composite gates are becoming the "steel guardians" guarding the safety of rivers and streams with more reliable performance.