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Best type of radiator trap

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Fizz
Fizz Member Posts: 547
Currently have Richardson System with 3 add-on radiators that have traditional traps.  As replacement traps, which are better, bellows or disc?

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  • Paul48
    Paul48 Member Posts: 4,469
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    Barnes&Jones

    cage units?
  • Gordo
    Gordo Member Posts: 857
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    Radiator Trap to Replace Richardson Ell

    I would recommend a Hoffman 17C with the Durostat.  It has one of the most restrictive outputs of the available traps.  I know that sounds counter-intuitive, but the Richardson ell is somewhat restrictive to air flow and the 17C seems to match that performance in my experience, esp. if you plan to leave in place some of the existing Richardson ells. 
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  • Fizz
    Fizz Member Posts: 547
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    Richardson el's

    I plan on leaving all in place unless they need replacement, which i don't think will be the case.  Thanks for advice, will check it out.
  • Fizz
    Fizz Member Posts: 547
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    Richardson el's

    I plan on leaving all in place unless they need replacement, which i don't think will be the case.  Thanks for advice, will check it out.
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