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Discussion of diving methods and equipment available prior to the development of BCDs beyond the horse collar. This forum is dedicated to the pre-1970 diving.
Lothar
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DW StreamAir / Kleer E-Z

Thu Dec 18, 2014 3:59 am

Hi,
I've two questions to the specialists here:

- Do you have a picture of the inside of an DW Stream Air with the original injector not directly oriented to the intake hose?

- What does it mean, the Kleer E-Z hose or mouthpiece?
I know what it is, but Kleer, is this the name of the inventor, and what means E-Z?

Thank you,
Lothar
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http://www.altes.tauchen.seveke.de

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Bryan
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Re: DW StreamAir / Kleer E-Z

Thu Dec 18, 2014 11:36 am

Hello Lothar good to hear from you :D

The E-Z is a play on the word Easy....In English saying the letters E Z sounds like the word easy.

I could not find a picture of a Stream Air insides but I'm sure another forum member will post one soon.
Doing it right should include some common sense, not just blindly following specs and instructions. .Gary D, AWAP on SB

Lothar
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 10:39 am

Hi Bryan,
thank you for your answer, but, sorry for my curiosity, what is easy with this mouthpiece?
And who is Mr. Kleer? ;-))

I hope there is anywhere a picture of the inside of the StreamAir in the deep of the garage? ;-)

And there is another question.
What's the difference between the USD DW Mistral and the USD Royal Mistral, out of the plate?
In the french version that's clear, but in the USD version ...?

I wish you, your family and your buddies Merry Christmas, a delicious turkey and a Happy New Year!
Lothar
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Bryan
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 11:27 am

From the Regulator ID guide on the main page. This should answer just about everything in regards to the Mistral / Royal Mistral difference. Lots of info on the front page links!

http://vintagedoublehose.com/vdh-manuals/mistral.pdf
Doing it right should include some common sense, not just blindly following specs and instructions. .Gary D, AWAP on SB

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simonbeans
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 12:50 pm

The paper, US Divers Mistral Family, in the download section that Bryan referenced above does a decent job of discussing the variations in the Mistral group. The basic body internals were the same in the Over-Pressure, Stream Air, Mistral and Jet Airs. When the Royal Mistral was introduced they had to redesign the internals to accomplish a balanced single stage regulator. Unfortunately it was not entirely successful. This image taken from the paper shows the internals. It is not of the best quality however, sorry.
Image

Over-pressure, Stream Air and some of the Jet Airs had the short venturi nozzle. Mistral had a longer one. The Royal had no venturi nozzle as can be seen in these images:

Image

Image

Image

Image
The Royal's main problem comes with the seat. The material does not appear to hold up and most of the regulators encountered today seem to feel flow due to the problematic seat.
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Bronze06
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 4:03 pm

Guten Tag, Lothar,

Hier ist eine kleine Weinachts geschenk fur dich.

Sorry, my German is rusty. The pictures are from my freshly re-furbished and previously un-molested 1956 DW "Stream Air". I know they didn't have red tinnermans clamps but the plasti-cote finish will seal them up for another 58 years. I am tempted to upgrade the nozzle with one of Bryans new Mistral ones, but I think I'll let this one stay. I will eventually get the cans re-chromed as there was a lot of verdigris on the back can interior. Vinegar does wonders for that.

Hope these help, Russ
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"Where'd ya get that ol' thang, don't cha' know them thare things ill kill ya!"

Live From the Red Sea,

Russ

Lothar
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 4:25 pm

Hi Russ,
that's great, that's realy a Weihnachtsgeschenk!
This is what I was looking for, the injector not directed to the intake hose in the StreamAir, my raptures are real but my English is bad.

Many thanks to Bryan and Simonbeans too.
Ok, we forget the easy mouthpiece of Mr. Kleer ;-)
But it's a very interesting information for me that the USD Royal Mistral is a balanced reg. The french RM is not balanced. I've four french RMs in different versions and none is balanced.
I've to catch one from USD. The case is not so nice but if it is balanced,...
Best regards,
Lothar
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swimjim
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Re: DW StreamAir / Kleer E-Z

Sun Dec 21, 2014 5:23 pm

Kleer Ez = Easy to clear

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