Reply To: Long loop and short loop circulation on DHT Home › Forums › Petro Solutions Forum › Hydroprocessing › Long loop and short loop circulation on DHT › Reply To: Long loop and short loop circulation on DHT April 12, 2021 at 2:50 pm #1449 Abu noorModerator Thanks Mr.Nasir Once flushing is completed through system we can stop Fractionator pump which is used for internal circulation? Only we will keep long loop circulation if not why?