The adjustment and test of pneumatic butterfly valve should start from checking whether the valve accessories are completely assembled and whether the electromagnetic parts and silencing parts are completely installed. If the parts are not completely assembled and installed, the commissioning can not be carried out at will. The normal air pressure is about 0.6. Before operating the valve, it is necessary to ensure that there is no debris inside the valve body, otherwise the debris will completely jam the valve panel, For the first inspection and adjustment, it is necessary to manually transfer the manual knob of the electromagnetic component. Before manual operation, it is necessary to ensure that the coil of the electromagnetic component is completely powered off, so that the manual operation will work.

The flange three eccentric multi-level hard sealing butterfly valve products can be applied to industrial pipelines such as petrochemical, food, medicine, textile, paper making, power, sewage treatment, water supply and drainage and smelting. It can be used as the opening and closing mechanism to control the flow of medium on the transmission pipelines or containers for various gases, liquids, semi liquids and micro particles. Flange three eccentric multi-level hard seal butterfly valve can be installed at any position. The flange three eccentric multi-level hard sealing butterfly valve series has a certain self-cleaning capacity. It can show multiple advantages when used in sewage pipelines such as steel plants and municipal pipelines, without maintenance, and has good sealing performance and easy operation.