• 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

Corrugated hoses interchangable?

Discussion in 'Vintage Equipment Diving' started by Jcp2, Nov 2, 2019.

  1. Jcp2

    Jcp2 ScubaBoard Supporter ScubaBoard Supporter

    478
    344
    63
    Or are they specific to specific models of regulators?
     
  2. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    546
    448
    63
    They seem to differ slightly in length and number of corrugations but most DH hoses have 'standard' 1.5" and 1" ID end fittings... and fit a variety of vintage DH models. Some like Spiro Royal Mistral are 1" each end.

    I've had problems with modern reproduction DH corrugated hoses having greater wall thickness than the OEM hoses which means the original screw type hose clamps won't close around the corresponding larger OD. Have to move to cable ties.

    The best ones I've encountered so far are the slightly longer super flexible ones VDH use on the Kraken and also sell as separate items:
    Store | Vintage Double Hose
     
    AfterDark likes this.
  3. Fibonacci

    Fibonacci Manta Ray

    # of Dives: 500 - 999
    Location: Melbourne, Australia
    546
    448
    63
    I've used a Mistral II demountable mouthpiece with the Kraken hoses, fitted fine.
    However the inlet/exhaust valve supports leaked like a sieve with the standard AS 568 -129 70 Duro o-rings, needed softer 50 Duro to seal properly in the slightly egg shaped bore.
    Likewise the angled hose to mouthpiece connectors also leaked slightly using the supplied -129 70 Duro o-rings.
    Changed over to ID 39.0 x 3.0mm 70 Duro for a little more compression, now 100% sealed!
    Mistral II mouthpiece with Kraken hoses.jpeg
     
    John C. Ratliff and Kupu like this.

Share This Page