in split range control system we are using two control
valves,but we have only one positioner and one feed back
link.so how we use this one feed back link for two control
valves?
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Answer Posted / vidnyan patil
one positioner using but it's output divided in two
position.one is 0-50 % and other is 50-100%.and second
think is one control valve 100% travel calibrated for 0-50
% positioner output,and second control valve 100% travel
calibrated for 50-100 % positioner output.so when
positioner output between 0-50% then one control valve will
operated and when positioner output between 50-100% then
second control valve will operated.
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