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  1. montgomerysj

    Location Balance Valve on Secondary Circuits

    Assuming a check valve is in place on the bypass line, does anyone have input on the possible negative impact of placing the balance valve as shown in my figure, downstream of the choke valve? As I understand it, the ideal location for the balance valve would be on the return (i.e. after the...
  2. montgomerysj

    Location Balance Valve on Secondary Circuits

    Yes, I was thinking it needed a check valve. I'm surprised one was not included in the original engineering design. Later a shut-off valve was installed on the bypass (still no check valve), so closing it will eliminate the short-circuit. But the energy recovery will have to wait for...
  3. montgomerysj

    Location Balance Valve on Secondary Circuits

    The concern with locating the balance valve on the return is that it will create a high pressure zone upstream of the balance valve causing unwanted 'warm' chilled water return to recirculate through the recovery bypass. See attched...
  4. montgomerysj

    Location Balance Valve on Secondary Circuits

    What's the main advantage to installing the balance valve on the supply side?
  5. montgomerysj

    Location Balance Valve on Secondary Circuits

    I got the reference from the below link: http://www.jmpco.com/balvalve.htm --Steve
  6. montgomerysj

    Location Balance Valve on Secondary Circuits

    Hello, I a made a similar post of the below on the pump engineering forum, but got no replies. We have a two pipe direct return cooling pipe system for a campus of buildings. Each building circuit is the secondary and the circuit between buildings is the primary. There are differing views as to...
  7. montgomerysj

    location balance valve

    We have a two pipe direct return cooling pipe system for a campus of buildings. There are differing views as to whether the main balance valve for each building should be in the supply or return line. 1) One view is that it will be easier to set the flow into the building, if the balance valve...

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