High-pressure cast iron gates are control devices used for deep-hole intakes to withstand high water head pressure, primarily applied in water conservancy and hydropower, municipal engineering, and water supply and drainage systems. Their core features include:
Structural Characteristics
Designed with curved panels and primary-secondary beam grids, the gate body is made of cast iron or zinc-sprayed steel plates. The sealing surface can be inlaid with copper or stainless steel to enhance corrosion resistance. The sealing system uses P-type rubber water stops, with a designed forward water head capacity of up to 50 meters and a reverse pressure resistance of 20 meters. The leakage rate is ≤1L/h·m.
Installation and Maintenance
Installation requires thorough cleaning of the gate slot and strict control of welding quality. Maintenance involves regular lubrication of rotating components and adjustment of the braking stroke.
Applicable Scenarios
Suitable for deep-water holes in hydropower stations, municipal water supply and drainage pipelines, and hydraulic engineering projects requiring high pressure resistance. They effectively regulate water flow direction and pressure.