• Welcome to ScubaBoard


  1. Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

    Benefits of registering include

    • Ability to post and comment on topics and discussions.
    • A Free photo gallery to share your dive photos with the world.
    • You can make this box go away

    Joining is quick and easy. Login or Register now by clicking on the button

ATX DS4 first stage blow out!

Discussion in 'Apeks' started by partha, Mar 3, 2020.

  1. jgttrey

    jgttrey ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Houston
    672
    833
    93
    A total aberration. For those reading along, if in the future @rsingler and I ever disagree about anything having to do with regulators, you should listen to him and ignore me.

    In this case, it's only because I have several DS4s that I just serviced. In fact, one of them had an IP problem that I only addressed after @rsingler explained the fix.
     
    rob.mwpropane likes this.
  2. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    5,513
    3,197
    113
    According to the attached chart it is an EP 80 as are all of the seals on it. (That means you are both correct...I hate when that happens.) BTW the size is -011

    Thanks goes to @buddhasummer
     

    Attached Files:

  3. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    4,431
    5,516
    113
    Did whomever compiled it mean "AS number" as in the AS568 oring list? I don't know what a BS number is...
     
  4. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
    2,514
    1,511
    113
    Looks like it is M. Barnwell Services in the UK.
    When I see a chart like that, I always want to know who is the author or original source.
    The EPDM 80 shore may accurately describe the BS part number, but that does not necessarily mean that is what Apeks specs. Of course for all I know, BS is where Apeks buys their O-rings. I just don't know.

    And "well, it must be true, I read it on the internet" are NOT exactly words I live by.
     
    couv likes this.
  5. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    5,513
    3,197
    113
    British Standard and same as AS
    British Standard O-Ring Size Chart | BS O-Rings Sizes

    "When I see a chart like that, I always want to know who is the author or original source."

    @JackD342 That is an excellent point. As a matter of fact I often substitute Viton where SP specifies EP or Nitril and often V90 where the spec is E85. You may have even noticed this on my annotated diagrams.
     
    rsingler likes this.
  6. Centrals

    Centrals Barangay Pasaway

    # of Dives:
    Location: Hong Kong
    7,031
    2,427
    113
    The DIN fitting on Apeks is quite easy to get loosen especially when it was being hand carried and the reg was NOT pressurized.
     
    couv likes this.

Share This Page