Assembly by the pneumatic actuator and butterfly valve body, controlled conveniently by a 2/5-way solenoid valve. When equipped with a valve positioner, it can also adjust parameters such as fluid flow, temperature, and pressure. The pneumatic flanged butterfly valve has low fluid resistance, and the butterfly lever can rotate 90 degrees to complete the opening and closing.
The flanged pneumatic hard-sealed butterfly valve features a multi-layered metallic hard seal, offering the advantages of elastic sealing and excellent sealing performance at low temperatures.
Due to the nearly equal forces acting on the butterfly plate on both sides of the shaft, and the opposite direction of the generated torque, the opening and closing torque is relatively small, ensuring good sealing under low pressure.
