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Post by cnotthoff on Jan 31, 2019 11:23:19 GMT -8
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Post by technidiver on Jan 31, 2019 13:54:10 GMT -8
Charlie is that Dacor in the middle functioning, it has the HP valve right?
TD
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Post by nikeajax on Jan 31, 2019 14:06:38 GMT -8
TD, don't be cheap: I know Charlie, he's overly generous... get one of each! Trust me, you'll regret it if you don't bruddah! JB
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Post by Deleted on Jan 31, 2019 14:34:54 GMT -8
if for no other reason, the USD steel (brass?) valve knobs work and look beautiful on the Sherwood manifolds for that vintage look,..groovy baby! ;-) 003 by holat88, on Flickr
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Post by technidiver on Jan 31, 2019 14:53:09 GMT -8
Ahhh, both of you have a point. Those valves do look nice, especially the metal USD valves.
Charlie I'll be sending a PM shortly.
TD
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Post by nikeajax on Jan 31, 2019 15:30:00 GMT -8
Good thinkin' boy'o! I'm actually quite partial to the knurling on the Dacors though JB
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Post by Deleted on Jan 31, 2019 15:58:22 GMT -8
Dang it Jay!!! Now I gotta go out and find me some Dacor wheels fer my Sherwoods ;-) Why'dja hafta go and point that out...lol!
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Post by nikeajax on Jan 31, 2019 16:17:03 GMT -8
Being the Lord of the Dark Side, it's my job to point these things out: step a little closer... friend! Did you know that the sound of Darth Vader's breathing was supplied by a Dacor regulator? They never say which though--GRRRRR! JB
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Post by tomcatpc on Feb 1, 2019 16:58:30 GMT -8
Seeing this make me want to think about putting back the original US Divers J-Valves back on the tanks they came with next go round with VIZ this coming Summer. I had them swapped out for Dacor J-Valves with the HP Port so I could use an SPG with double hose. In the few years I've been diving with double hoses I never even bothered with an SPG. Totally comfortable with J-Valves at this point...going back to original. Mark
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Post by SeaRat on Feb 6, 2019 13:05:44 GMT -8
if for no other reason, the USD steel (brass?) valve knobs work and look beautiful on the Sherwood manifolds for that vintage look,..groovy baby! ;-) 003 by holat88, on Flickr I did not know that the knobs were interchangeable between Those SD and Sherwood. I may have to try that. Here's my twin steel 52s set up with a classic USD twin manifold with the J-reserve. Note that the 500 psig spring is on only one bottle. When the reserve is pulled, these equalize to 250 psig in the tanks. If, however, I elected to use it with my Healthways Scubair-J (J-reserve on the regulator), it would be on the center between the two tanks, and would trigger at 300 psig. The Scubair-J would give me an additional 50 psig warning. John
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Post by nikeajax on Feb 6, 2019 13:36:32 GMT -8
...I did not know that the knobs were interchangeable between Those SD and Sherwood. I may have to try that... John EWWWW: I really don't like the way plastic knobs look! I love the way the old Healthways, smooth-star knobs look, very elegant JB
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Post by Deleted on Feb 6, 2019 13:53:15 GMT -8
002 by holat88, on Flickr 003 by holat88, on Flickr Im still lookin for a piece of solid stock to make a few J rods out of as mine is obviously lacking that. I too prefer the look of the metal knobs. BTW, USD metal knobs are'nt the only interchange possibilities for plastic knob replacement, but then, unlike the Sherwood knobs, I sorta have a soft spot in me heart fer the USD plastic knobs cause they're.. alright.
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Post by SeaRat on Feb 6, 2019 18:12:15 GMT -8
Let me let you guys in on a pretty neat way to use the J-valve on a doubles manifold. You can reverse the J-reserve to have it pointed toward your shoulder. Here's whet it looks like on my jump tanks: Why is this configuration used. Well, it cannot be accidentally hit and knocked down. This has been used for decades in the military, as some UDT/Seals have reversed the valve to do this since the 1950s. I have one photo of Navy divers in a submarine escape tank, and one has the reversed valve. This is done by simply putting the center piece of the manifold onto the valve backwards (you don't touch the reserve end), which also reverses the side which has the reserve (left side to right side). This can be done with any double tank manifold with a separate center section, and also on a triple manifold that has a separate mated center section. Some vintage J-valves for single tanks have this ability to reverse the pull lever so that it goes toward your shoulder. This one below (Scubapro) has that ability, though I have not used it with this tank. Dacor's also has this ability (though it is not advertised). The down side of this is that the cutout on some stainless tank bands is then in the wrong place for a J-valve pull rod. This can be overcome simply by putting some duct tape around the pull rod (I put a small piece of duct tape against the adhesive of the larger piece so that it does not inhibit the pull rod at all). Note that along with the reversed lever, you can also use a screwdriver to change the reserve setting from 300 psig to 500 psig, giving you a bit more air in reserve, with this Scubapro J-valve. This was requested in the 1970s by cave divers. And, yes, Jaybird, that is a Healthways Scubair first stage on the valve. There is a small screw right in the center of the valve that needs to be pushed down with the screwdriver and turned 90 degrees to make it a 500 psig valve. Conversely, it can be converted to a 300 psig valve by pressing down with the screwdriver and letting the spring-loaded screw back out to the top of the valve. This can be done on a tank with pressure in it as long as the regulator is not attached or pressurized. John
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Post by SeaRat on Feb 6, 2019 20:46:04 GMT -8
Okay, since I started this about the Scubapro J-valve, I probably should finish it. This photo shows this valve with the J-valve's lever reversed. Here is a back view, showing one other feature of this valve, a stem gauge. This one shows that the valve in not registering pressure (better be, as it is not on a tank). The stem is not visible. This is again the back of the valve, but the one on a tank. This one shows the tank to have pressure (but because it is unreliable, it shows only about half full, when in fact it is almost full). John
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Post by snark3 on Feb 10, 2019 2:56:18 GMT -8
TD- I have a couple of DAAMs with Cyclone first stages in them. I use a banjo fitting with them for an SPG. I have found that several of my valves are too wide (front to back) to allow use of a banjo. I have 2 New England Divers tanks with, I believe, Healthways valves and I cant use the banjo with them. The USD valves are no problem. Do a test fit before you put the valve in the tank and have it filled.
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