Gate valve castings, essential components of gate valves, are typically manufactured through casting processes using materials such as cast iron, ductile iron, or stainless steel, ensuring high strength and durability to withstand high-pressure and high-temperature environments. These castings feature a precise internal structure with a sliding gate mechanism that provides tight shut-off capabilities, making them ideal for applications requiring reliable flow control in industries like oil and gas, water treatment, and power generation, where minimal leakage and long service life are critical.