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automatic by pass valve/ differential by pass valves ?.

Discussion in 'Plumbing and Central Heating' started by WelshMan, 26 Nov 2008.

  1. WelshMan

    WelshMan

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    I cant seem to get it into my thick head atm if there is a differance between these two. they both basically in the event of trv's closing down the system allow the hot water to dissipate from the boiler via the flow and return. Automatic i assume means the valve will simply open when this is required while a differential will adjust itself depending on the flow . is this correct ?. If not could someome please clarify for me.

    Thank you,
     
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  3. powell30

    powell30

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    Correct. Slight difference but none for purposes of your question.
     
  4. WelshMan

    WelshMan

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    powell30 can you give me your understanding on the operation of the two valves please ?
     
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