Ash discharge ball valves are mainly used in pipelines for cutting off, distributing, and changing the flow direction of media. Ash discharge ball valves can be classified according to their structure: floating ball type, fixed ball type, and elastic ball type. They are primarily used to cut off or connect the media in pipelines, and can also be used for fluid regulation and control. Compared with other valve types, ash discharge ball valves have angular stroke output torque, rapid opening, stable and reliable operation, and wide applicability. The working principle of an ash discharge ball valve is to rotate the valve to open or close the valve.
Electric ball valves consist of only a few parts, saving material consumption; they are small in size, lightweight, and have small installation dimensions. They have low driving torque, are pressure regulating valves, and are easy and quick to operate, requiring only a 90° rotation for rapid opening and closing. They also have good flow regulation and sealing characteristics. In applications with large and medium diameters and low to medium pressures, electric ball valves are the dominant valve type. When an electric ball valve is in the fully open position, the thickness of the disc is the resistance to the medium flowing through the valve body. Therefore, the pressure drop through the valve is very small, resulting in good flow control characteristics. Electric ball valves have two sealing types: resilient seal and metal seal. In resilient seal valves, the sealing ring can be embedded in the valve body or attached to the periphery of the disc. Valves with metal seals generally have a longer lifespan than those with resilient seals, but achieving a complete seal is difficult. Metal seals can withstand higher operating temperatures, while resilient seals are limited by temperature. If an electric ball valve is required for flow control, it is important to accurately select the valve size and type. The construction principle of electric ball valves is particularly suitable for manufacturing large-diameter valves. Electric ball valves are widely used not only in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems of thermal power plants. Commonly used electric ball valves include wafer-type electric ball valves and flange-type electric ball valves. A wafer-type electric ball valve uses double-ended bolts to connect the valve between two pipe flanges. A flanged electric ball valve has flanges on the valve itself, which are bolted to the pipe flanges. The strength performance of a valve refers to its ability to withstand the pressure of the medium. Valves are mechanical products subjected to internal pressure, and therefore must possess sufficient strength and rigidity to ensure long-term use without cracking or deformation. A pneumatic ball valve consists of a ball valve and a pneumatic actuator. Pneumatic actuators are divided into double-acting and single-acting types, controlled by a solenoid valve to achieve the opening and closing of the ball valve. Pneumatic ball valves can achieve intelligent control, quickly opening or closing pipelines, and effectively controlling and managing pipeline networks.
