Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Flow check or Spring check

Kritz_3 Member Posts: 85
Just a quickie, On returns heading towards a low loss header,
what would be the preferred check valve a sping or flow type check
valve. I will be installing flow check equiped pumps . Thanks in


  • J.C.A._3
    J.C.A._3 Member Posts: 2,981
    pump checks

    Should be more than enough. Don't sweat it, as Dan says, "think like water". Chris
  • Kritz_3
    Kritz_3 Member Posts: 85
    check valves

    Viessmann specs out checks on the return legs , Just wondering
    if a spring checks Cv will pose a problem?
This discussion has been closed.