Auto Recirculation Valve. Auto Recirculation Valve. Chemitofreak (Chemical) (OP) 21 Apr 16 04:12 Hi, What shall be the basis for selection between normal control valve and auto recirculation valve in the pump minimum flow line. Thanks in advance. RE: Auto Recirculation Valve. LittleInch (Petroleum) 21 Apr 16 20:59 One that works? They're both control valves. I mean really, give us a bit more than 25 words to understand what on earth you're going on about.... Remember - More details = better answers Also: If you get a response it's polite to respond to it.