Butterfly valve maintenance

The maintenance of butterfly valves is essential to ensure their long-term stable operation and extend their service life. The following are maintenance recommendations for butterfly valves:
1. Daily maintenance
Regular inspection:
Check whether there are leaks in all parts of the butterfly valve, especially the sealing surface, valve stem and packing parts.
Check whether the valve body and valve stem have corrosion, wear, deformation and other phenomena.
Confirm whether the butterfly plate is flexible when opening and closing, and whether there is any jamming.
Cleaning the valve:
Regularly clean the valve surface, especially the sealing surface and valve stem, to prevent dust and impurities from accumulating.
Remove dirt and foreign matter that may accumulate inside the valve to ensure that the valve is unobstructed.
2. Regular maintenance
Lubrication:
Regularly lubricate the valve stem and other moving parts to ensure flexible opening and closing. For metal-sealed butterfly valves, attention should be paid to the selection of lubricants to avoid corrosion and contamination.
Seal inspection:
Check the wear of the sealing ring. If the sealing ring is found to be aging or damaged, it should be replaced in time.
Check whether the packing is loose. If there is leakage, tighten or replace the packing in time.
Tighten the bolts:
Regularly check the tightness of the valve body and valve cover bolts to prevent leakage caused by loose bolts.
Through the above maintenance measures, the service life of the butterfly valve can be effectively extended to ensure its safety and reliability in operation.