I. Product Overview
The cast iron circular gate with copper inlay uses cast iron as the main structural material. The sealing surfaces between the gate and the frame are embedded with copper (typically red copper or brass), forming a reliable seal. The overall structure is circular, and fluid flow is controlled by the vertical movement of the gate.
This gate is suitable for media such as clean water, sewage, silt-laden water, and mildly corrosive liquids. It is designed for use in water conservancy projects, sewage treatment plants, municipal water supply and drainage systems, and agricultural irrigation pipelines or channels. Operating conditions include temperatures ≤80℃ and working pressures ≤0.6 MPa. The cast iron body ensures structural strength, while the copper-inlaid sealing surfaces provide excellent sealing performance.
II. Product Features
• The main body is made of high-quality cast iron, offering high strength, rigidity, and impact resistance. It can withstand significant water pressure and external forces, adapting well to complex operating environments.
• The sealing surfaces of the gate and frame are embedded with copper, which provides excellent wear resistance, corrosion resistance, and sealing capability. After precision machining, the copper surfaces fit tightly, ensuring reliable sealing when closed and effectively preventing fluid leakage.
• The structural design is simple and easy to operate. Manual (hoist) or electric actuation methods can be used. The gate moves smoothly with high adjustment precision, meeting various flow control requirements.
• Flexible installation options allow for exposed stem or non-rising stem configurations, depending on site conditions. Maintenance is convenient, and parts are highly interchangeable, facilitating future repairs and replacements.
• The overall corrosion resistance is excellent. The cast iron surface can be treated with anti-corrosion coatings (such as painting or galvanizing). Combined with the copper-inlaid sealing surface, the gate is well-suited for long-term use in media containing impurities such as sewage or silt-laden water.
• The circular structure offers strong compatibility with pipelines or channels. The flow path is unobstructed when fully open, resulting in low flow resistance and minimal impact on fluid transmission. This ensures efficient system operation.
III. Main Standards
Design, performance, and installation of the gate refer to the following national and industry standards:
• GB/T 11692-2008 – Cast Iron Gates • SL 381-2007 – Design Code for Hoists in Water Conservancy and Hydropower Projects • Relevant industry standards
Specific technical parameters, performance indicators, and installation requirements should be based on the product’s factory-issued technical documentation.
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