Arc-shaped cast iron gates are circular interception devices made of cast iron, primarily used in hydraulic engineering for water flow control and water level regulation. Their key features are as follows:
Structural Composition
Composed of gate frame, gate plate, guide rails, sealing strips, transmission screw rods, and other components. The main material is gray cast iron or ductile iron, with sealing surfaces using copper strips or rubber inlay technology. ?
Function and Application
Mainly used for irrigation and drainage, flood control, flood discharge, and water level regulation and flow cutoff in hydraulic engineering such as hydropower stations and reservoirs. Suitable for water treatment projects in water supply and drainage, petrochemicals, metallurgy, coal, and power industries. ?
Performance Parameters
?Specifications?: DN300 to DN1500 mm
?Pressure Rating?: ≤0.1 MPa
?Working Head?: Forward 10 m, Reverse 5 m
?Water Temperature Range?: -20℃ to 120℃
?Opening/Closing Speed?: 0.2 to 1.5 m/min
?Sealing Performance?: Bidirectional water stop, forward leakage ≤0.7 L/min·m ?
Installation and Maintenance
Requires embedded steel plates or bolts for fixation. During installation, adjust the sealing surface gap to ≤0.1 mm. Regular lubrication and anti-corrosion maintenance are necessary. ?