Answer / ritona iramehr

anti surge is a system to protect the compressor against surging. you should pen and close this valve according to CSV (critical surge value). a number that you wont catch it .
but kickback is a valve that work in process. you should colse and open it according the situation of process. also a kick back can work as a antisurge in emergency condition.to only more protect of compressor. but not open this valve wont make problem for compressor

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