Cast Iron Lined Copper GateIt features a unique outer arc design, with a rational structure and even distribution of force. Made from gray cast iron or ductile iron, as well as stainless steel, the water-tight sealing surface is lined with copper strips or rubber, and after precise machining and fitting, it achieves a flat contact seal, ensuring good sealing performance. In case the sealing and water-tightness deteriorates, the issue can be resolved by adjusting the wedge device. The cast iron镶copper square gate: 1. The cast iron镶copper square gate is composed of door frame, gate plate, guide rail, sealing strip, transmission screw, lifting block nut/ear, and an adjustable sealing mechanism. Both the door frame and gate plate are made of gray cast iron or ductile iron. The guide rails are symmetrically arranged on both sides of the frame and secured with stainless steel bolts and locating pins. For medium and small diameter gates, the guide rail can be cast integrally with the frame. The length of the guide rail is generally 1/2 to 1/3 of the full gate opening height, resulting in a high overall structural strength, rigidity, wear resistance, corrosion resistance, and high bearing capacity. 2. Sealing is achieved through the wedging of the wedge device, with sealing materials being copper alloys or rubber, which are then precisely machined and fitted, ensuring good sealing properties. 3. It is installed using pre-buried steel plates or bolts, making installation, adjustment, operation, and maintenance convenient, with a long service life. 4. It offers a full range of types and specifications, with wide adaptability. 5. It is used in conjunction with an opening and closing machine, where the gate serves as the working part, and the machine acts as the executing part for opening and closing the gate. The machine is driven by manual labor, an electric motor, or pneumatic or hydraulic mechanisms, which power the transmission device's gears, worm gears, etc., to rotate the transmission nut or screw, causing the gate shaft to move vertically up and down, thus opening or closing the gate to achieve the purpose of water on, off, or water level regulation.