Bottom sprung / Top sprung Valves

Discussion in 'Trumpet Discussion' started by Trumpet Dreamer, Sep 22, 2010.

  1. Trumpet Dreamer

    Trumpet Dreamer Mezzo Forte User

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    Is there an advantage of bottom sprung vs. top sprung valves? Do all flugels utilize bottom sprung valves?


    OK, no reply needed! Found the info on a previous post!
     
    Last edited: Sep 22, 2010
  2. oldlou

    oldlou Forte User

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    My Yamaha YTR 2310 student grade flugel was made with caged top sprung valves that are spectacular if I use Hetmans synthetic valve oil.


    OLDLOU>>
     
  3. dhbailey

    dhbailey Piano User

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    Is there an advantage? Not if the instrument is built correctly, engineered so that wherever the springs are, the pistons move easily (when oiled).

    As Old Lou pointed out, his flugelhorn has top-spring valves -- my Phaeton flugelhorn has bottom spring valves.

    My Bb trumpets are top-spring, my D/Eb Yamaha is top-spring, my Yamaha Picc is bottom-spring.
     
  4. Trumpet Dreamer

    Trumpet Dreamer Mezzo Forte User

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    I called a local repair shop and was told that bottom sprung pistons are considered
    "old school".
    Do not know exactly if he meant better or worse. But as long as the design is properly executed, I would guess it makes no difference.
     
  5. ChopsGone

    ChopsGone Forte User

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    Bottom-sprung valves are found more often in low brass instruments and in some flugelhorns these days. They used to be the standard for trumpets, but top-sprung valves pretty much knocked them into oblivion. One big advantage I've found to top-sprung in similar instruments: they're much quieter. They also give you fewer loose parts to worry about when you're washing the horn.
     
  6. oldlou

    oldlou Forte User

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    The major reason that instrument manufacturers went to top sprung valves in horns with small diameter valve casings is the cost of broaching the long guide slot for the guide pins on the valves of bottom sprung valves. Top sprung valves can be made with very short guide slots because many of that design have guides that move over the spring cage or along with the spring, while the piston moves independantly of the guide.


    The best valves that I currently have are in my Conn 2B, New Worlds Symphony trumpet and my Conn 36A, Concert Grand cornet. They are fantastic. I have many other top and bottom sprung horns that go from the ridiculous to the sublime. It all depends on the quality of the machining and valve lapping.


    OLDLOU>>
     
  7. Trumpet Dreamer

    Trumpet Dreamer Mezzo Forte User

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    Having never played a horn with bottom sprung valves, are they considerably noisier? The valves on my Getzen trumpet are insanely quiet!
     
  8. Buck with a Bach

    Buck with a Bach Fortissimo User

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    All my trumpets and the cornet my SIL has, are top sprung. only bottom sprung horn I have is my flugle, and yeah, it's noisier than the trumpets.....Buck:oops:
     
  9. Trumpet Dreamer

    Trumpet Dreamer Mezzo Forte User

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    So, how do you like the Selman horns? Sound? Quality?
     
  10. ComeBackKid

    ComeBackKid Fortissimo User

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    I have several with bottom-sprung valves, including a Conn and my Olds flugelhorn. They work fine and are no more noisy than the top springs.
     

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