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Post by nikeajax on Jul 2, 2020 18:28:16 GMT -8
Healthways Divair-C:
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Post by SeaRat on Mar 2, 2021 18:24:15 GMT -8
Okay, I'm going to start adding diagrams here. First up, the White Stag DEEP I. White Stag Regulator002 by John Ratliff, on Flickr The second stage is actually (I think) a Sportsways second stage, with the Lexon plastic box and the lever which doubles back on itself. I liked it enough that in the 1970s I put it onto a MR-12 first stage, and this is the second stage I took to 210 feet in Warm Mineral Springs. White Stag--007 by John Ratliff, on Flickr Here's what the innards look like in real life. Here's the photograph of this very unique first stage, parts pulled out of it. This first stage is a diaphragm regulator, built into a cylinder of brass. It's actually quite a good breathing regulator. I think it is also a balanced design. John
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Post by SeaRat on Mar 2, 2021 18:33:48 GMT -8
Horo us tho White Stag DEEP I second stage on a Sportsways diaphragm J-valve first stage. White Stage Manual BC-1 by John Ratliff, on Flickr Note also the unique hard-shell BCD on this tank. It works well, as you can add air to it with a LP hose or orally (it was set up initially as an orally inflated device), with two small holes in the bottom. So it works by simple displacement, with the bubble of air captured by the design of the shell. If the diver goes head-down, air will slowly leak out of the two small holes, and need to be replaced once a horizontal attitude is assumed again. White Stag--006 by John Ratliff, on Flickr Here's the diagram of the DEEP I second stage by White Stag. White Stag Hard Shell U:W front view by John Ratliff, on Flickr Here is the DEEP I regulator in use with the White Stage hard-shell BCD. Note that I also am wearing a front-mount vest for surface use in an emergency. John
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Post by SeaRat on Mar 5, 2021 17:37:18 GMT -8
Next up, the Sportsways Hydro-Twin and Hydro-Twin II. Sportsways Hydro-Twin II by John Ratliff, on Flickr Hydro Twin Inverted image by John Ratliff, on Flickr IMG_2601 by John Ratliff, on Flickr This is my Hydro-Twin II. Note the blown high pressure line that I had hooked up; the problem is that this was a line that was meant for a max pressure of 2475 psig, and I set it up on a 3000 psig set of tanks after 50 years of sitting around and use. IMG_2595 by John Ratliff, on Flickr Here's a gasket which I took off, and which got really messed up, along with a "new" one which I cut out of a sheet. IMG_2596 by John Ratliff, on Flickr Here's the "new" gasket in place. IMG_2592 by John Ratliff, on Flickr My Hydro-Twin II with all the parts shown. IMG_2591 by John Ratliff, on Flickr Another, better view of the parts. IMG_2602 by John Ratliff, on Flickr The High Pressure port on the Hydro-Twin. I hope you enjoy this entry. John
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Post by SeaRat on Mar 7, 2021 15:27:40 GMT -8
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Post by SeaRat on Aug 30, 2023 17:24:36 GMT -8
I don't think this Dacor R-4 ad has been featured here. It has an interesting diagram of the mechanics of the R-4 regulator. Dacor R-4001 by John Ratliff, on Flickr John
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Post by SeaRat on Aug 30, 2023 17:26:29 GMT -8
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Post by SeaRat on Aug 30, 2023 17:31:38 GMT -8
This isn't a skematic, but it is an illustration of the Overpressure Relief Valve used on Healthways single hose regulators when they used a tilt valve configuration, requiring some sort of ORV in the regulator to prevent hose rupture if the first stage malfunctioned. IMG_2558 by John Ratliff, on Flickr These can be removed, taken apart, and cleaned so that they well work on the regulators. When reassembling, they need to be tightened down until on a full tank (for piston regulators) or at 500 psig (for diaphragm first stages) the hold steady. Then use the Allen wrench to back the pressure off until it starts to leak, and tighten again a 1/4 turn. That way they are holding pressure at the highest interstage pressure (IP). John
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Post by SeaRat on Aug 30, 2023 17:34:55 GMT -8
Here is the diagram on the Aqualung Mentor regulator, which was never released to the public, but made in limited quantities for the U.S. Navy. There are some still around in collections, but I don't know of any being dived at present. Mentor Parts Diagram by John Ratliff, on Flickr Mentor Parts Diagram by John Ratliff, on Flickr I have the entire Mentor Technical Manual, in PDF format, and can send it to anyone who would like it. It has too much for this site. John
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Post by SeaRat on Aug 30, 2023 17:47:22 GMT -8
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Post by SeaRat on Aug 30, 2023 17:51:21 GMT -8
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Post by SeaRat on Aug 30, 2023 17:58:15 GMT -8
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