Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. Pneumatic butterfly valve is a pneumatic valve that uses the circular butterfly plate that rotates with the valve stem to open and close to realize the activation action. Increasing use on medium diameter pipes. Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard sealing pneumatic butterfly valve, soft sealing pneumatic butterfly valve, carbon steel pneumatic butterfly valve. The main advantages of the pneumatic butterfly valve are simple structure, small size, light weight and low cost.
The pneumatic butterfly valve uses a circular butterfly plate that rotates with the valve to open and close, and the pneumatic valve that realizes the activation action is mainly used as a shut-off valve, and can also be designed to have the function of adjustment or segment valve and adjustment. Increasing use on medium diameter pipes.
One of the taboos of the pneumatic butterfly valve is that the user manual is not carefully read before installation, so how to install the butterfly valve correctly? Below I will explain to you the precautions before installation of the electric butterfly valve. For newly constructed pipelines, the impurities in the pipeline should be cleaned up in time before installation, so as to prevent the valve seal from being damaged when the pipeline is newly started up. During installation, please do not use the actuator part of the valve as a lifting point to avoid damage to the actuator and accessories. Please design a firm support on the welded pipe, and it is strictly forbidden for the weight of the pipe to be borne by the valve body. The stem is vertical, the valve plate is vertical, vertical.
Place the wafer butterfly valve between the two pre-installed special flanges for wafer butterfly valves, and pay attention to align the flange bolt holes with the round holes of the butterfly valve body. Insert the bolts and nuts into the flange holes, connect the valve body to the flange, and correct the flatness inside the valve, but be careful not to overtighten the bolts and nuts. Weld the flange on the pipe, this step adopts the method of spot welding. Remove the wafer butterfly valve first. Then the two flanges are completely welded to the pipe to complete the fixation. After the weld between the pipe and the flange is cooled, install the double-clamp butterfly valve. At this time, pay attention to opening the butterfly plate.
