Pneumatic Butterfly Valve is composed of pneumatic actuators and butterfly valves, it is used with the circular disc valve rod rotation to do open and close, so as to achieve the opening of the pneumatic valve to do the main application of cut-off valve, this also has function of regulation. At present Butterfly Valve is used more and more on the large and medium diameter pipeline.

Usually do a good job on cleaning the cylinder surface and refueling to the cylinder shaft circlip. Open the cylinder cover to check whether has debris, water and grease status or not every 6 month regularly. If grease is less or dry, you need to disassemble the cylinder to do a comprehensive maintenance, then plus grease.

Checking the valve body appearance and valve seal every 6 month, whether it is good and wear? Ensure that the Butterfly valve plate operation is flexible and there has no foreign bodies stuck.