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how to calibrate a control valve?
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Answer Posted / azmat
To calibrate a valve first check the input signal range if
it is 0.2 to 1.0 Kg/cm2 or different.
Calculate the span ( Difference between higher limit to
lower limit=1.0-0.2=.8 ) Now divide it in four equal parts
that is 0.2 Kg/cm2 this is 25% of the span.
Now check the valve travel like 2 inches, 3 inches or any
other value Divide it in four equal parts 25% of the travel.
Apply 25% of the span value+ 0.2= 0.4 Kg/cm2 it is 25% of
travel and apply full span value and see you get the
complete travel if you find difference adjust the spring
accordingly.
| Is This Answer Correct ? | 82 Yes | 10 No |
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