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Post by spirou on Oct 17, 2022 13:53:51 GMT -8
hello the da navy approved is the last of the originals, and on the latest versions the oranges the body is turned 180 degrees
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Post by vance on Oct 17, 2022 17:51:48 GMT -8
Is it? I thought the DAAM was the first of them with the jet aimed at the intake horn. I have never had an orange label Navy Approved, but Mark (Tomcatpc) does.
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Post by artc on Oct 17, 2022 18:38:12 GMT -8
Spirou is correct, I can confirm that the orange label Navy Approved did have the jet pointed towards the intake horn. Unfortunately, without venturi action. the orange label Navy Approved wasn’t much better breathing than their Broxton predecessors. The DAAM is a far better breather.
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Post by SeaRat on Oct 17, 2022 19:50:06 GMT -8
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Post by vance on Oct 18, 2022 7:45:42 GMT -8
Spirou is correct, I can confirm that the orange label Navy Approved did have the jet pointed towards the intake horn. Unfortunately, without venturi action. the orange label Navy Approved wasn’t much better breathing than their Broxton predecessors. The DAAM is a far better breather. Since the Orange Label Navy Approved had the old style lever/soft seat and vertical air jet, it would work similarly to the Dacor R-3 which also had a 180 degree repositioning of the second stage from previous models. Better, but nothing to get very excited about. I wondered why they made the Navy Approved with 2 different labels, but this only explains the later regs in the series? |
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Post by vance on Oct 20, 2022 8:53:44 GMT -8
The DAAM/Navy arrived last night. Here it is with the valve I repaired and rebuilt settled into it's rightful place. I tested it and it works! It looks pretty good for a nearly 70 year old regulator.   |
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Post by SeaRat on Oct 20, 2022 12:27:46 GMT -8
Spirou is correct, I can confirm that the orange label Navy Approved did have the jet pointed towards the intake horn. Unfortunately, without venturi action. the orange label Navy Approved wasn’t much better breathing than their Broxton predecessors. The DAAM is a far better breather. Since the Orange Label Navy Approved had the old style lever/soft seat and vertical air jet, i t would work similarly to the Dacor R-3 which also had a 180 degree repositioning of the second stage from previous models. Better, but nothing to get very excited about. I wondered why they made the Navy Approved with 2 different labels, but this only explains the later regs in the series? The Dacor R-3 Dial-a-Breath had the orifice/lever system oriented directly at the intake horn, which in the early days did produce a Venturi effect. I remember trying one in 1959 (used) to buy, and it would free flow if I took my mouth away from the mouthpiece on an inhalation. Some divers did not like that, so the dial was actually attached to a vane to “feather” the Venturi down (divers thought that easy breathing made them use air faster). I also have a Dacor R-2, which has the intake positioned against the case, but rather than 180 degrees away it is at about the 4:00 position. I found that interesting, and wondered whether they were trying for an asymmetric.air flow around the case that would “push” air into the intake hose? I have never really answered that question.  Dacor Double Hose Regulators by John Ratliff, on Flickr John |
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Post by vance on Oct 20, 2022 18:19:10 GMT -8
BTW, the DAAM valve that came in these boxes looks pristine. All of the parts look new.
Score!
I wondered why someone would stick a DAAM valve in the Navy boxes, thinking it a waste of time and energy, since it goes in backwards. However, it must have worked at least as well as the Navy valve, and probably a bit better. I suppose having a working regulator beats a bunch of parts sitting around.
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Post by vance on Oct 21, 2022 15:03:34 GMT -8
This Navy Approved will get a new silicone diaphragm and duckbill, and will go on eBay with a straight mp, wws, and new non-return valves included. No hoses.
No one is paying the kind of $$ I'd need to ask if I include hoses! The MP and non-returns are essentially free. Even so, I'll get very little for the trouble of cleaning, buying parts, making repairs, and rebuilding.
Mostly, I don't care. I just like to get these regulators back in the water! It's fun for me, and it is very satisfying to know history is being acknowledged and will live on!
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Post by artc on Oct 21, 2022 15:40:59 GMT -8
Phil, you’re an inspiration to us all. When you look at what people are asking on eBay with DH regulators, it’s impossible to make a profit by rebuilding them properly and then reselling them. After the hoses, DB, mouthpiece, new diagram, new hp seat, band clamp, long yoke and kit, you’re talking over $200 in parts alone.
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Post by vance on Oct 21, 2022 17:00:44 GMT -8
As I've said before, I don't care about making money on my rebuilds. I only want to break even, and if I make a few dollars, it always goes back into parts for the next one.
I've sold a lot of regulators at a loss (mostly due to eBay's greed), but I have also found a deal here and there to re-sell that makes up for the losses.
I love finding a regulator that needs what I have (parts, skills, whatever) to make it dive-worthy again. It's a great feeling to know that I've saved another one from the knackers!
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