Briefly describe the oil replenishment pressure of the liquid control butterfly valve for the clamp type fluorine lined butterfly valve manufacturer

clamp-on Fluorine-lined Butterfly Valve Manufacturer's description of the oil replenishment pressure for hydraulic butterfly valves

After the valve is fully opened, in order to ensure that the heavy hammer does not vibrate or fall off, the hydraulic butterfly valve has an automatic pressure holding accumulator system. When the system pressure is below 5.3 MPa, check valve The oil pump automatically starts to replenish oil. However, actual monitoring has found that when the system pressure is below 6.2 MPa, the vibration of the heavy hammer will increase; The lower the pressure, the greater the vibration. Obviously, the design value of the oil replenishment pressure is low, Fluorine lined DC globe valve It is one of the causes of vibration.
Strength of the fixed shaft pin between the butterfly plate and valve shaft of the hydraulic butterfly valve

After disassembling the hydraulic butterfly valve during maintenance, it was found that all four fixed shaft pins between the butterfly plate and the valve shaft were loose due to vibration, causing the butterfly plate and valve shaft to be unable to be effectively fixed, and the oil pressure to resist vibration could not be effectively established on the butterfly plate, resulting in chaotic water flow impacting the butterfly plate and causing vibration; PTFE lined valve And as the running time increases, the fixed shaft pin becomes looser and the vibration becomes greater, forming a vicious cycle.

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