What Are The Defects Of Sanitary Butterfly Valves?

Sanitary Butterfly Valve is suitable for fresh water, sewage, seawater, salt water, medicines, oils, various acids and alkalis and other thin-walled pipelines that require sealing, zero gas test leakage, high life requirements, and working temperatures between 10°C and 150°C. So do you know what are the defects of sanitary butterfly valves?

The defects of sanitary butterfly valves are as follows:
1. The operating torque of sanitary butterfly valves is different due to the different opening and valve opening and closing directions. Especially for large-diameter valves, the torque generated by the difference in upper and lower water heads due to the water depth cannot be ignored.
2. Under normal use, the life of the sealing seat of the sanitary butterfly valve is 10-15 years for rubber and 70-85 years for metal. The relationship between the opening and flow rate of the flow accuracy sanitary butterfly valve is basically linear.
3. When the sanitary butterfly valve is in the middle opening, the opening shape formed by the valve body and the front end of the butterfly plate is centered on the valve shaft, and the two sides form different states. The front end of the butterfly plate on one side moves in the direction of the water flow, and the other side moves in the direction of the water flow.

As the pressure of the reverse medium increases, when the unit positive pressure between the valve plate and the valve seat is less than the medium pressure, the deformation energy stored by the spring of the adjusting ring after being loaded can compensate for the tight pressure of the valve plate and the valve seat sealing surface to play an automatic compensation role.
The defects of the sanitary butterfly valve are mainly those introduced above. The defects of our sanitary butterfly valve are mainly manifested in the above places. If our butterfly valve has defects, we need to solve them in time.