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Do I need balancing valves with a residential reverse return system?

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Scott_Mountain_View_CA
Scott_Mountain_View_CA Member Posts: 202
in Radiant Heating
Do I need balancing valves with a residential reverse return system?

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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
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    Is this a new piping project, or are you having a problem with an existing system?
    steve
  • SWEI
    SWEI Member Posts: 7,356
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    If you are installing radiators, balancing valves are generally part of a standard combined valve/fitting assembly that typically costs about $20.

    Reverse return piping is always a good idea -- and on a typical perimeter radiator layout it requires no additional time or materials. If your layout truly makes reverse return impractical, TRV's (assuming they are installed on every radiator) will compensate for the pressure differences in a direct return design.
  • Scott_Mountain_View_CA
    Scott_Mountain_View_CA Member Posts: 202
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    It's a new piping project. If I get creative I can probably do reverse return, however it's inconvenient. I'm installing Runtal wall rads; here's a Runtal kit with a TRV, but don't know what the other piece is?
  • Scott_Mountain_View_CA
    Scott_Mountain_View_CA Member Posts: 202
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    Looks like the other valve is a shutoff. Does this suffice for balancing, or is a special balancing valve required?
  • Scott_Mountain_View_CA
    Scott_Mountain_View_CA Member Posts: 202
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    I need to backup and make sure I understand what type of valve is suitable for balancing a residential 2-pipe radiator system. I'm installing Runtal rads. Runtal sells decorative lockshield valves to be installed on the outflow pipe of their radiators. Is this valve suitable for balancing a multi-rad system where all rads have the lockshield valve?
  • Scott_Mountain_View_CA
    Scott_Mountain_View_CA Member Posts: 202
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    Bump. Seems like few if any logged in to this site?
  • bob_46
    bob_46 Member Posts: 813
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    The lockshield valve you pictured is suitable for both isolation and balancing. Whether it's the right choice for your system depends .
    bob

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