Pneumatic Center Line Flange Type Butterfly Valve

1.The drive method is make compress air as power source, drive the butterfly plate rotating through pneumatic execute mechanism, realize the valve open and close. It has the characteristic that quick response speed, generally, it able to finish the actions in shorter time, meeting the requirements of quickly open and close. The pneumatic execute mechanism divided into dual action and single action. The dual action executor able to realize the action at both positive and negative direction under the air source pressure; the single action execute mechanism based on spring reset, able to automatically recover to the preset safety position under the air source failure. 2. Flange connect method, convenient to install and disassemble, able to tightly connect with various specification pipeline systems, guarantee the sealing performance and reliability of connection. 3. More smooth butterfly valve runner design, small fluid resistance, able to make the medium smoothly pass through the pipelin…