Application Defects of Rubber Metal Hard Seal Butterfly Valve

The rubber hard seal butterfly valve is more convenient to use, and the utilization rate is quite high, but after testing, it is found that there is a small defect in the actual use process, which is when it is used for throttling, because the solar energy project does not produce cavitation. In order to solve this problem, after several years of development and research, the metal hard-sealed butterfly valve and the electric hard-sealed butterfly valve were born. The cavitation zone of this kind of butterfly valve has achieved a lot of effect, and The vibration is very low and the noise is very small. The opening of the hard-sealed butterfly valve and the flow rate generally change linearly. If the flow rate is controlled, the characteristics of the flow rate and the flow group are closely related. If both pipelines are installed If the valve is installed, the coefficient of pipeline damage is very low, and the flow rate of the valve will be very different. The opening shape of the front section of the valve body and the butterfly plate is centered on the valve shaft, and the two sides form a completely different state, once it is the butterfly plate. The direction of the downstream water in the front section is the reverse flow direction. Therefore, the valve body and the valve plate form an opening, and negative pressure will be generated under the throttle side valve, which will cause the rubber seal to fall off. If you use flange hard seal butterfly valves and electric butterfly valves There won't be such a situation!