Pneumatic butterfly valve
is assembled by pneumatic actuator and butterfly valve. Butterfly valve is a kind of angular stroke valve. It can be used in various working conditions when matched with pneumatic actuator. Some faults are often encountered during use, which is related to the product. Quality is related, but it is also related to maintenance during use. Today, I will introduce how to avoid failure of pneumatic butterfly valves during use. Maintenance of pneumatic butterfly valve: 1. Confirm whether the product performance and medium flow direction arrows are consistent with the operating conditions in the front of the device, and clean the inner cavity of the valve. Never close the disc before cleaning to avoid damage to the sealing ring. 2. It is recommended to use the butterfly valve flange, that is, the HGJ54-91 type socket welding steel flange, for the matching flange of the disc device. 3. The position of the device in the pipeline is vertical, but it cannot be flipped. 4. The flow needs to be adjusted during use, and there is a worm gear box to stop the control. 5. For butterfly valves with more openings and closings, in about two months, open the cover of the worm gear box to check whether the butter is normal or not, and stick to the right amount of butter. 6. Check that each connection part is required to be pressed, which not only ensures the sealing performance of the packing, but also ensures the sensitive rotation of the valve stem. 7. Metal sealing butterfly valve products are not suitable to be installed at the end of the pipeline. If it must be installed at the end of the pipeline, it is necessary to install the outlet flange to avoid the backlog of the sealing ring and the over-position. 8. The valve stem device uses the response to regularly check the valve operation effect, and finds problems and eliminates them in time.
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