Regarding the control valve, these are the design review comments in English. What do they mean?
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Resizing the control valve size according to a 60-degree stroke (100% travel) basically involves recalculating the valve size based on that. . . . ?
Based on the valve movement of only 60° (full stroke)
In the case of butterfly valves, it is necessary to verify (calculate) the relevant data and specifications based on the flow rate when the butterfly valve is fully open at 60°.
This post was last edited by ooxtoo on 2019-6-17 at 18:23. Wow, it can be guessed – it’s a butterfly valve. How should the 100% travel in parentheses be understood?
It’s a butterfly valve; is it possible that only butterfly valves exhibit this behavior?
They are asking to recalculate the opening angle corresponding to the maximum flow rate of the butterfly valve; this opening angle needs to be less than 60 degrees, as specified by the standards. The full open position is 90 degrees, which corresponds to 100%.
However, it seems that everyone uses the opening percentage for verification.
100% travel: 100% of the itinerary. It means that a rotation angle of 60° corresponds to 100% of the stroke
Recalculate the size of the control valve based on a maximum full stroke of 60 degrees.
Recheck the valve opening degree in a 100% travel scenario, where it is only 60 degrees