
Overview of Pneumatic Butterfly Valves - Dongqi Valves specializes in the production and sales of ventilation butterfly valves
Pneumatic ventilation butterfly valves are machined with a sealing ring made from the same material as the valve body. The valve's operating temperature depends on the material chosen for the valve body, with a nominal pressure of ≤0.6MPa. Pneumatic butterfly valves are generally used for ventilation and flow regulation in industrial, metallurgical, and environmental protection pipelines. The main features of the pneumatic ventilation butterfly valve include innovative and reasonable design, unique structure, lightweight, and quick opening and closing. The operation torque is low, making it easy to operate, labor-saving, and flexible. The valves are made from materials that adapt to different medium temperatures and corrosive mediums, ranging from low to high.
Q641W Pneumatic Ventilation Butterfly Valve Operating Principle:
An air-powered butterfly valve is a non-sealed butterfly valve, which comes in two types: on/off and regulating. The air source of 0.5-0.7Mpa drives the valve shaft through an air-driven actuator, rotating the butterfly plate within a 90° range along with the valve shaft, allowing full open and close actions. It is easy to open and close quickly. It is paired with HQG or AW type angular position pneumatic double-acting and single-acting actuators to form a butterfly valve assembly, which is used in conjunction with pneumatic unit combination instruments. It features simple structure, large bore, light weight, and easy operation. Suitable for media such as coal gas, air, natural gas, steam, dusty gases, flue gas, it has characteristics such as simple structure, high flow capacity, and high regulation accuracy. It can be widely used in industrial automatic control in environmental protection, metallurgy, chemical fiber, teaching equipment, light industry, papermaking, etc., to achieve remote or on-site control; it reduces the labor intensity of workers and saves costs.
Dongqi Valves specializes in the production and sales of ventilation butterfly valves. Welcome to call for inquiries at 13676710008.

































