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how pressure reduce through pressure control valve? suppose
we have to reduce 20 kg pressure to 10 kg pressure , then
what we do ? open the valve or close the valve , initially
it is 20 % is upon ( for ur knowledge ).
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Answer Posted / ashraf
First, know where the valve is.If it is at upstream,(High
pressure line to vessel), then close valve and open vent
valve till pressure reduces to 10 kg. If it is at
Downstream,open the valve.
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