The working principle of pneumatic butterfly valve and maintenance debugging

pneumatic butterfly valve is composed of pneumatic actuators and pneumatic valve adjustment. Pneumatic butterfly valve is used with the rotation of the pneumatic valve orange circular disc to do, to be opened in order to realize the opening action of pneumatic pneumatic valves are used mainly for truncation of pneumatic valve, can be designed to have a adjustment or period of pneumatic valve and adjustment function, the adjustment of pneumatic valve on the low voltage and medium caliber pipe used more and more.
　　. The working principle of pneumatic butterfly valve
butterfly butterfly plate installed on the diameter of the pipe of pneumatic valve. In the cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc butterfly plate around the axis of rotation, rotation Angle for ° - Between °, rotate to °, the pneumatic valve in the fully open position. Butterfly pneumatic valve has simple structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, simple operation, at the same time, the pneumatic valve has good flow control characteristics. Butterfly pneumatic valve in the fully open position, the butterfly plate thickness is medium flows through the only pneumatic valve body resistance, and so by the pneumatic valve pressure drop is small, it has good flow control characteristics. Butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral.

pneumatic butterfly valve maintenance and debugging. Electromagnetic pneumatic valve and muffler check maintenance
every month for electromagnetic pneumatic valve for inspection and maintenance, mainly check the solenoid pneumatic valve whether any dirt blocking pneumatic valve core activities freely, muffler to have dirty plugged up, whether unobstructed. Air is clean water.
　　. Cylinder inspection maintenance plan
usually do cylinder surface clean and axis of cylinder gas spring, open the cylinder end cover regularly every month check the presence of impurities and moisture in the air cylinder, and grease. Such as lack of grease or already dry cylinder must be open for full maintenance cleaning after add grease.
　　. Pneumatic valve body check
check pneumatic valve body appearance is good, every month have installed flange without leakage, if it's convenient to check the pneumatic valve seal are in good condition, no wear and tear, and pneumatic valve plate operation is flexible, pneumatic valve presence of foreign bodies stuck.
　　. Cylinder block disassembly and assembly method and the matters needing attention
the first will be detached from the pneumatic cylinder body, first unwrapped cylinder heads, piston down when must pay attention to the direction of the piston rack, and then use outside clockwise rotating cylinder axis piston run to the outside, then close the pneumatic valve hole ventilation gently with pneumatic piston top out slowly, slowly but this method must pay attention to ventilation, or piston will suddenly, a bit dangerous! Then put the cylinder shaft circlip tear down, cylinder shaft can take out from the other end. For each part to clean up, and then you can add grease, add grease parts as follows: the cylinder wall and piston seal, rack and the back ring, and the gear axis and seal ring. After add good grease will press down order and place the order after installation will be installed in the disassembly sequence and place an order, it is important to note that the position of the gear and rack, make sure the pneumatic valve in open position is the position of the piston shrink into the gear shaft when the upper groove parallel to the cylinder block, pneumatic valve position when the piston to the outside to the position of the gear shaft upper trough and vertical cylinder block.
　　. Cylinder and pneumatic valve installation and debugging method and the matters needing attention
will first pneumatic valve with external forces in the closed position, will first pneumatic valve with external forces in the closed position, namely the pneumatic valve shaft clockwise until the pneumatic valve plate and seat sealing contact, at the same time the cylinder is placed in the closed state of pneumatic valve ( Above the cylinder shaft into a small slot and cylinder ChuiZhiZhuang for clockwise to close the pneumatic valve pneumatic valves) And then to a pneumatic cylinder valve ( The installation direction and pneumatic valve parallel or vertical) , see if the screw hole for again, won't have too big deviation, if you have a little deviation, cylinder block turning point, then tighten the screw. Pneumatic butterfly valve debugging to check the pneumatic valve accessories whether the installation is complete, the solenoid pneumatic valve, muffler, etc. , if there is not complete, not debugging, for a gas pressure is normal. MPA±. MPA, run to ensure that the pneumatic valve body without sundry card before pneumatic valve plate in place, for the first time debugging runtime with manual operating electromagnetic pneumatic valve manual button ( Manual operation when electromagnetic solenoid coil electric, manual operation is valid; Electric control operation losing electricity put manual twist in a circle, manual operation is valid; To close the pneumatic valve and a pneumatic valve, pneumatic valve, quick open close the pneumatic valve losing electricity if you need to close the pneumatic valve, open a loss to close the pneumatic valve electromagnetic coil rotation of the pneumatic valve can be installed) Pneumatic valve operation and observation. If found in the process of debugging run pneumatic valve pneumatic valve is in the starting position is slow, but as long as the action after action after soon, soon found in the process of commissioning the pneumatic valve pneumatic valve is in the starting position is slow, but as long as the action soon after, this kind of circumstance is pneumatic valves are closed tight, just put the cylinder stroke (a little On both ends of the cylinder stroke adjusting screw to adjust a bit at the same time, the adjustment when the pneumatic valve must be running to the open position, and then dispatch air off again) Easily transferred to the pneumatic valve is opened and closed in place does not leak. If the silencer for adjustable sound can adjust the switching speed of the pneumatic valve, muffler must be adjust to pneumatic valve switch speed suitable for open if too small, may not be able to make the pneumatic valve action.