High Pressure Cast Iron Gate

High-pressure cast iron gates are critical equipment used in hydraulic engineering, primarily for controlling water flow, opening and closing operations, and regulating water levels. Their core features are as follows:
Structural Characteristics
‌Material‌: Manufactured from HT250 gray cast iron or ductile iron, complying with industry standards CJ/T3006-92 and DL/T5018-2004. Critical sections include corrosion allowances and undergo stress relief through aging treatment. ‌
Structure‌: Composed of gate frame, gate leaf, lifting seat, and tight-closing inclined iron components. The gate leaf directly withstands water pressure, while the gate frame serves as a support structure and ensures proper alignment of sliding tracks. ‌
Function and Application
‌Sealing Design‌: Utilizes inclined iron or copper alloy facings, combined with wedge mechanisms and water pressure to achieve bidirectional sealing, with leakage controlled within 0.03-0.07L/m·s. ‌
Applicable Scenarios‌: Widely used in reservoirs, rivers, hydropower stations, and other hydraulic engineering projects, supporting water level regulation, flow interception, and directional water flow control. ‌
Installation and Maintenance
‌Installation Requirements‌: Requires hoisting as a whole into the slot, followed by secondary concrete pouring to adjust sealing surface gaps to within 0.1mm. Regular lubrication and anti-corrosion maintenance are essential.