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  1. Hurtle

    Grundfos chiller loop pump with 30ft positive head sucking air. Is it the pump?

    Thanks so much for these great responses. I’m thinking I’ll bring more to the forum in other areas. Also working on wind turbines and plastic extruders. No current problems with either.
  2. Hurtle

    Grundfos chiller loop pump with 30ft positive head sucking air. Is it the pump?

    Those are some great answers. Note we’ve not had a repeat yet. I’m concerned we will. It’s expensive to have the plant stopped. 1st response.... I’ve reviewed that 60 plus page article..thanks. 3rd response Fittings. Yes. I want the early start guy to check carefully around the pump before...
  3. Hurtle

    Grundfos chiller loop pump with 30ft positive head sucking air. Is it the pump?

    Hi, I’m in Taiwan and language problems limit the help I can get. We have a chiller pump line gravity fed from 4 floors above. Yesterday it stopped pumping and then started after air bleed 2 hours later. Chill water is 14 to degree Celsius. I can’t see it is the PVC pipes my Taiwanese...
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