Is a valve needed at the outlet of the variable frequency pump?
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Is it necessary to install a valve at the outlet of an variable-frequency pump? It wasn’t included in the design by our factory’s design institute, but it was added later? I don’t know the reason. Solve? During operation, is it necessary to close the valve promptly after stopping the pump?
It’s usually present; otherwise, it can’t be removed when it’s damaged. If it’s a centrifugal pump, have you ever seen one without a valve at its outlet? Maybe it was forgotten to draw during the design phase~~~
Shouldn’t there be valves at the outlet of centrifugal pumps? Otherwise, overcurrent will definitely occur
Valves are required, essential at the pump outlet.
Don’t use an outlet valve; it’s not useful for shutting off the flow when repairing the pump
Add a valve for shutting off during maintenance; it’s useful in case of any problems
If it is a vertical pump, valves may not be required.
Perhaps it’s not included in the design of vertical acid pumps, but companies usually require it to be added for easier maintenance in the future
Both frequency conversion and valves are used for regulation; frequency conversion regulation does not require valves, and even if valves are installed, they need to be left fully open
It is not necessary to install one at the outlet of the variable-frequency pump; if maintenance is required, the plant must be shut down for that purpose, unless one unit is in operation while another serves as a backup
Valves are definitely necessary; otherwise, what will we do during maintenance?