I. Product Overview
The cast iron square 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 square, 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 channels with square pipelines or conduits. 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. The square design offers superior compatibility with rectangular flow channels.
II. Product Features
• The main body is made of high-quality cast iron, offering high strength, rigidity, and impact resistance. It can withstand significant lateral water pressure and external forces, making it especially suitable for rectangular channels and square flow paths.
• 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. This design is particularly effective for media containing impurities.
• The compact structural design ensures strong compatibility with square pipelines or channels. Once installed, it maximizes space utilization and optimizes flow path layout, avoiding the dead zones that can occur when round gates are used in rectangular conduits.
• Operation is convenient and can be driven manually (via hoist) or electrically. The gate moves smoothly with high adjustment precision, meeting various flow control requirements. Transmission components are treated for corrosion resistance, ensuring long service life.
• Flexible installation options allow for exposed stem or non-rising stem configurations, depending on site conditions. Maintenance is simple, 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, offering strong operational stability.
• When fully open, the flow path is unobstructed and matches the square channel profile, resulting in low flow resistance and minimal impact on fluid transmission. This ensures efficient system operation, especially under high-flow conditions.
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 for rectangular gates
Specific technical parameters, performance indicators, and installation requirements should be based on the product’s factory-issued technical documentation.
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