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Rebreather Acronym Glossary for Dummies

Discussion in 'Rebreather Diving' started by seaseadee, Oct 19, 2019.

  1. seaseadee

    seaseadee Barracuda

    # of Dives: 100 - 199
    Location: Boca Raton, Florida, United States
    @fsardone So that I do not hijack the A&I Thread where I am reading all of these, would you please decode the following acronyms for those of us who don't speak the lingo:

    • BOV
    • MAV
    • END
    • EAD
    • OTS CLs
    • APD
    • C/L
    couv, Landau and FreeFlyFreak like this.
  2. fsardone

    fsardone Solo Diver ScubaBoard Supporter

    # of Dives: I just don't log dives
    Location: Rome, Italy
    Sorry mate,
    Bail Out Valve
    Manual Addition Valve
    Equivalent Narcotic or Nitrogen Depth
    Equivalent Air Depth
    Over the Shoulder Counter Lungs
    Ambient Pressure Diving (manufacturer)
    counter lungs
    RainPilot, couv, Landau and 2 others like this.
  3. tbone1004

    tbone1004 Technical Instructor ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    bov-bail out valve. a mouthpiece that has a second stage built in so you can bail out without removing the mouthpiece from your mouth
    mav-manual add valve. used to manually add oxygen or diluent to the loop. Historically the same as a drysuit inflator valve on a front mounted counterlung, but have since gotten a bit more diverse
    END-equivalent narcotic depth. not a rebreather term but a trimix term. Used to figure out how narcotic and by coincidence how dense a gas is going to be. Same formula as calculating EAD and used to compare how narcotic a gas will be compared to air. I.e. 10/70 at x depth is the same ppN2 as air or EAN32 at y depth.
    EAD-equivalent air depth. This is a nitrox term to compare a higher ppO2's gas to air for decompression purposes.
    OTS cl's-over the shoulder counterlungs. Google it for a picture, Megalodon is probably the best one to look for but most rebreather manufacturers that don't have integral counterlungs have them as an option. Meg, HH, O2ptima, Liberty, APD, etc.
    APD-ambient pressure diving. Making of the Inspiration rebreather, aka YBOD/yellow box of death
    C/L-counterlung. flexible bag used to "store" a breath when you exhale into the loop
    RainPilot, Landau, Jay and 1 other person like this.
  4. seaseadee

    seaseadee Barracuda

    # of Dives: 100 - 199
    Location: Boca Raton, Florida, United States
    Jay likes this.
  5. Dsix36

    Dsix36 Solo Diver

    POS = any rebreather with hammerhead electronics
    victorzamora, Doby45, kensuf and 5 others like this.
  6. jstrang

    jstrang Instructor, Scuba

    # of Dives: 500 - 999
    Location: burlington, ON, CANADA
    I always thought it was revo=pos.

  7. Caveeagle

    Caveeagle Rebreather Pilot

    # of Dives: 500 - 999
    Location: High Springs, FL
    +DSV= Dive Surface Valve: many rebreathers have a mouthpiece that has an open/close valve for the loop. It also contains the mushroom valves that keep the gass flowing in one side And out the other, maintaining circulation of breathing gas through the breathing loop.

    *this is the alternative to a BOV, where you can switch over to open circuit.
  8. Dsix36

    Dsix36 Solo Diver

    Nope, just the ADV in the rEvo. The rest is pretty darn good and solid.
  9. OceanEyes

    OceanEyes PADI Pro

    # of Dives: 5,000 - ∞
    Location: Hollywood, Florida
    Regarding YBOD, another less dramatic though apropos interpretation is Yellow Box Of Debt.
    TTPaws likes this.
  10. Jack Hammer

    Jack Hammer Solo Diver

    SP - Set point. The desired PPO2 (pressure point of oxygen) to be maintained in the breathing loop.
    txaggie08 likes this.

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