Check valve on a closed loop hydronic system?

Discussion in 'HVAC Heating & Cooling' started by CHRISUPNORTH, Nov 23, 2008.

  1. CHRISUPNORTH

    CHRISUPNORTH New Member

    Messages:
    11
    As mentioned in another thread I am putting together a small closed loop hydronic system . The Taco circ pump I have purchased has a integral check. My system will have about 18" of head.
    Should I remove the check in the pump?
    What are the advantages/disadvantages of removing it?

    Regards,

    Chris
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,824
    Location:
    New England
    Leave the check valve...
  3. CHRISUPNORTH

    CHRISUPNORTH New Member

    Messages:
    11

    Thanks for the reply Jim.


    I am trying to learn here so help me out. Can you expand on why you think it better left in?

    Chris
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,824
    Location:
    New England
    Without a checkvalve, when the pump is off, you'll still get circulation because of the difference in height and temperature. So, things could continue to get heat when you don't want it.
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