Q647F overview:
Q647F/Y/H pneumatic ball valve is a fixed (sphere) perpendicular to the channel axis to rotate 90 degrees of the valve, the piston type double or single acting (spring reset type) pneumatic actuator and O type valve structure, equipped with accessories, solenoid valve, air filter regulator, limit switch (valve the hearing) or electric - gas valve positioner to control or cut off two automatic adjustment control technology in pipeline fluid medium
Q647F/Y/H pneumatic fixed ball valve product features:
1 pneumatic ball valve fluid resistance, fluid resistance all valves in a minimum, open and close quickly and easily, powered by compressed air through the piston rack, mechanical drive rod gear, a rotary output torque to rotate the sphere 0~90 degrees, you can quickly open and close action or regulating action. The ball core channel is smooth, easy to deposit the medium can be pipelined through the ball. The utility model has the advantages of simple structure, light weight and good sealing performance. Is the execution unit of the instrument in the automatic control system.
2 by electro pneumatic valve positioner, the electrical signal and compressed air as power control system, accept input 0-10mA DC or 4-20mA DC current signal by the regulator will be converted into the compressed air, the air pressure signal input and output, changing the angle of rotation of the ball core, can achieve proportional regulating action.
3 using the electromagnetic valve, the valve position back to the hearing device, with AC220V or DC24V power supply voltage and compressed air as power, to achieve the fluid medium fast two bit cut off control.
4 pneumatic actuator piston cylinder and crank arm conversion structure, large output torque, small volume, the use of full sealed waterproof design high protection level. The cylinder body adopts the mirror cylinder, has no oil lubrication, the friction coefficient is small, corrosion resistance, and has the advantages of strong durability and reliability. All transmission bearings are lubricated by boundary self-lubricating bearings to ensure that the transmission shaft is not damaged.
Technical specification for Q647F/Y/H pneumatic fixed ball valve:

design basis		GB standard
Design standard		GB/12237
Structure length	Flange connection	GB/1221
Flange dimensions		GB/9113、JB/T79
Test and inspection		JB/T9002

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