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6. Maintenance
Vexve butterfly valves are virtually maintenance-free.
Correct choice of valve as well as careful installation, commissioning, and use significantly reduce any
need for maintenance.
WARNING:
When the valve is installed in the line, its surface temperature may be dangerously high.
Protect yourself against burns.
We recommend checking the following periodically:
Check that the valve is free of surface damage and shaft leaks, and carefully repair any damage.
To ensure long-term operational reliability, even when seldom used (around ten times a year or less),
we recommend the following:
Approximately six months after commissioning and then once a year, inspect the valve for for shaft leaks,
check the manual gear / electric actuator / hydraulic actuator, and ensure the tightness of the screws
between valves.
NOTE:
Impurities in the pipeline, wear, and damage caused by pressure shocks are the most
common reasons for leaks through the sealing surfaces of the valve. Impurities can be
removed.
Close the valve gradually until the disk is open by 5–10 degrees. The increased flow rate
effectively dislodges any solid impurities and cleans the sealing surfaces.
Vexve butterfly valves are reliable and durable.
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