Pneumatic cylinders are a popular choice for actuating knife gate valves, which are commonly used in industrial and commercial applications to control the flow of liquids or gases. These cylinders are powered by compressed air, which is used to move a piston or other actuating mechanism that opens or closes the valve. Pneumatic cylinders offer several advantages over other actuators, including fast and precise operation, high durability, and low maintenance requirements. They are also ideal for use in hazardous or difficult-to-access environments, as they do not require electrical power or other external energy sources. Overall, pneumatic cylinders are a reliable and efficient solution for knife gate valve actuation and are widely used across a range of industries and applications.