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Scuba pro 109 purge diaphragm

Discussion in 'Vintage Diving & Equipment' started by SamSamandpegitha, Aug 20, 2021.

  1. SamSamandpegitha

    SamSamandpegitha New

    # of Dives: 1,000 - 2,499
    Location: Wi
    3
    0
    Hello.
    Rebuilding couple old but good 109’s and cannot seem to find the silicone purge diaphragms I purchased the black rubber puter but cannot seem to find the correct silicone one underneath. Any help appreciated
    Thanks
    S
     
  2. Rusty Shackleford

    Rusty Shackleford Contributor

    # of Dives: 500 - 999
    Location: Port Canaveral Florida
    858
    498
    Try Vintage Double Hose. Google them.
     
  3. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    17,488
    21,591
    That Isn't going to be easy....
     
  4. SamSamandpegitha

    SamSamandpegitha New

    # of Dives: 1,000 - 2,499
    Location: Wi
    3
    0
    Bought most of parts from vdh. Didn’t find the silicone diaphragm on the site
     
  5. Kupu

    Kupu Polliwog ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: USA
    953
    493
    The same diaphragm part # (11-109-124) has been used in both balanced adjustables and some G250s.
    Measuring diameter on a few of these diaphragms and unmarked diaphragms from 109s, they all look to be 73mm.

    A later version G250 diaphragm part # 11-250-1XX is 74mm but it does fit into a 109 as well.
     
    axxel57 and rhwestfall like this.
  6. scrane

    scrane Contributor

    # of Dives: 500 - 999
    Location: Boise, ID.
    1,384
    1,080
  7. SamSamandpegitha

    SamSamandpegitha New

    # of Dives: 1,000 - 2,499
    Location: Wi
    3
    0
  8. axxel57

    axxel57 Contributor

    751
    571
    Okay, I'm a bit late, but of course is most easy way to get yourself a silicone diaphragm for your old 109s by ordering with any SP Dealer the 11.300.008 Diaphragm or cannibalize an old R190 (or not old) 2nd, because it uses the same diaphragm since the end of the 90ties, which is the same which was used for the G250 and the late BAs.
    I found its shape (it's a bit higher) works better at fine adjusting than the old 11.109.124 silicone diaphragm.
    Even with 100% and more win span for your dealer it should not be more expensive than 15,- US$ (Price List 2020) for you....
     
    couv and noturane like this.

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