How to install a valve on the outlet of a diaphragm pump?
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If a valve is installed at the outlet of the diaphragm pump and closed, won’t that damage the pump? So how can the flow rate be adjusted while protecting the pump itself from damage?
60%-80% is the optimal operating flow range for diaphragm pumps.
Adjust the flow rate by installing an inverter.
It is also possible to install a shortcut (bypass valve).
They usually come with a travel regulator that allows adjustment of the level between 20% and 100%
If we go by what was said on the first floor, it’s sufficient to maintain a certain degree of opening; would installing a three-stage cylinder to regulate the ball valve be enough? Or it could be a pneumatic control valve. The former can only roughly fix a certain opening degree; manual adjustment is cumbersome, so it can be chosen if the setting doesn’t need to be changed frequently. The latter is controlled by a 4-20 ma current signal.
The adjustment methods include: loop adjustment, frequency conversion adjustment, travel adjustment, and throttling adjustment~~~~ Find an adjustment method that suits your specific operating conditions~
A connection valve is installed to facilitate pump operation, a safety valve is used to prevent overpressure, and an inverter is employed to adjust flow rate and save energy
I think the simplest way is to add a \"back pressure valve\" at the outlet, leaving the outlet valve unchanged. The backpressure valve will hold back the outlet pressure.