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Oceanic High Pressure Quick Disconnect Hose

Discussion in 'Oceanic' started by owlbill, Dec 8, 2018.

  1. owlbill

    owlbill Dive Shop

    # of Dives: 500 - 999
    Location: Ottawa, ON. CAN
    249
    2
    18
    Looking to get the part numbers for the 3 o-rings in the Oceanic HP QDC fitting used on Pro Plus and Pro Plus 2 etc. computers. We are servicing regs for a customer and the QDC Hose needs cleaning. Service many from other manufacturers but one of the o-rings in the Oceanic seems to be a different size. We have inquired with our local distributor but have not received answers. Hoping to expedite this so I can get orders in for the parts as soon as possible.

    Can provide proof of dealership and current Technician certificate if required.

    Thank you.
    Bill
     
  2. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
    1,151
    520
    113
    Not sure if this will help or not. Oceanic computers and QDs are from Pelagic Pressure Systems, now owned by Aqualung. So the hoses and QD fittings should be pretty universal across Oceanic, Sherwood, and current Aqualung, assuming no generational differences.

    Here is the Sherwood QD diagram and parts number list - they seem to be easiest to find the schematics and parts for the QD.
    upload_2018-12-8_13-47-23.png
    (quick note on general differences - I recently took apart my 25 year old Oceanic QD from my Pro Plus 2, and there was a nylon washer where this diagram indicates an o-ring for part #9. My current assumption is that the difference from the Sherwood diagram is due to age, and not brand.)

    Edit: Now I am not so sure about my statement regarding a nylon washer. I don't see one in my parts bucket for my disassembled QD, so maybe I was thinking of something else I worked on that same day. I think #9 is the standard HP hose o-ring.
     
    markmud likes this.
  3. owlbill

    owlbill Dive Shop

    # of Dives: 500 - 999
    Location: Ottawa, ON. CAN
    249
    2
    18
    The o-ring #5 on the drawing is the one that is different in the QD fitting I am servicing. ID of the o-ring seems the same as a 007 o-ring but the one from this QD has a much thinner cross section than the ones I have seen in the Sherwood units.

    Bill
     
  4. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
    1,151
    520
    113
    I have a thinner cross section in my breakdown tray, that I believe is part #4, not #5. That thinner o-ring is not common, and is not on the Innovative Scuba o-ring guide. Part #5, 007 o-ring, is recessed inside a groove on my old Oceanic QD, and matches the Sherwood diagram.
     
  5. Red_Rock_Diver

    Red_Rock_Diver Garibaldi

    # of Dives: 1,000 - 2,499
    Location: UT
    4
    0
    1
    I took apart my Oceanic Pro Plus 2 Quick Disconnect and measured the o-ring that in the diagram is part # 4. The measurements I obtained suggest that it is a 901 o-ring. It has the thinner cross section and the ID and OD measurements are very close to what I measured. Since it is a high pressure application you would probably be looking at durometer 90 vs a durometer 75 rubber hardness but opinions vary on that. All depends if you think the OD fitting is a static or dynamic application or on other recommendations from manufacturers, other divers/technicians and personal experience.
     

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