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in split range control valve,two valve should be in two
different line and that should have some distance,and we
have only one positioner feed back link.so how we connect
one feed back in two control valves?if you have picture
please forward me.my email id kb.syamkumar@gmail.com
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Answer Posted / ansarru
Not only one positioner.we should have positioner for each valve, that is there are 2 positioners.
Normally one valve work with (4-12) ma and another work with (12-20) and by this way,we are ecoordinating two manipulated variable for a single controlled variable, achieving "SPLIT RANGE CONTRL "
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