Pneumatic Wafer Butterfly Valve Product Overview 1. Pneumatic valve operating torque, is the smallest of all valves operate a moment, open and close rapidly, driven by compressed air through the piston rack gear mechanical transmission stem to rotary output torque of the rotary valve plate 0 ~ 90 °, will be able to quickly complete the opening and closing movements, simple structure, small size, light weight, low flow resistance, flow coefficient, good sealing performance. Adjustment range. Automated control system instrumentation execution unit; 2. Electro - pneumatic valve positioner, electrical and compressed air as power to accept 0-10mA DC input control system or 4-20mA DC current signal, the compressed air from the regulator is converted into air pressure signal input and output, changing valve plate rotation angle (0-90 ° at any angle), with better regulatory control flow and other parameters. 3. Electromagnetic valve, valve position back to the hearing, to AC220V or DC24V power supply voltage and compressed air, to achieve the fluid medium fast two-cut control. 4. Actuator piston-cylinder and crank conversion structure, the output torque, small compact, fully sealed waterproof design high degree of protection. Cylinder block with mirror cylinder, no oil lubrication, friction coefficient, corrosion resistance, superior durability and reliability. All transmission bearings are used in boundary lubrication oil-free self-lubricating bearings, ensure that the drive shaft does not wear. Attachment Options: Depending on the requirements of the control and choice of the following accessories: back to the hearing: Also called limit switches, remote switch signal feedback (optional explosion proof). Solenoid valve: double acting election two five-pass, two-way single-action option (optional explosion proof). FRL: You can air regulator, filter, cylinder lubricating. Hand wheel: turn the hand wheel mechanism can be achieved manually open and close the valve. Electrical locator: 4 ~ 20mA input signal, valve adjustment. Order: This product is factory direct supply products, for (can be customized), when ordering the special configuration of the following detailed description parameters: (example: valve type, drive, connection type, structure type, nominal pressure, nominal diameter The input signal, sealing surface material, body material, suitable temperature, whether with attachments) Contact Inquiry ----> OK price ----> Fax contract ----> contract ----> Pay deposit ----> deliverables ----> settle payment