|
|
Post by Jim Perdway on May 2, 2023 18:22:55 GMT -8
Last year I brought in a newly purchased tank to one of my dive shops for hydro/viz. It had last been done in '79. For a reason I can't recall, based on the shop owner's advice, I had him replace the original valve with a newer one. This was before any testing was done; he had just looked at it briefly and said I need a new one.... I tend to get very flustered during my shop visits and overly-agreeable with the owners/techs to make everything go smoothly. Of course in retrospect I wish I wouldn't have bought any old valve from him; in my flustered state of mind I failed to consider that I actually want and use the J-valve... So my question is: what was his likely reasoning for decommissioning this valve? An issue with the burst disc not being serviceable/replaceable or something? I'd like to get this one back in use if reasonable to do so  USD J valve (2) - Copy by Jim Perdway, on Flickr  USD J valve - Copy by Jim Perdway, on Flickr |
|
|
|
Post by artc on May 2, 2023 18:42:40 GMT -8
I had the same problem. In order to get a steel 72 hydro approved, I had to buy a K valve to replace the existing J valve. When getting refills, I’d conspicuously let the shop see my Calypso J regulator on the tank, just to piss them off. Ultimately, I found a new shop.
|
|
|
|
Post by scubalawyer on May 2, 2023 18:59:32 GMT -8
Last year I brought in a newly purchased tank to one of my dive shops for hydro/viz. It had last been done in '79. For a reason I can't recall, based on the shop owner's advice, I had him replace the original valve with a newer one. This was before any testing was done; he had just looked at it briefly and said I need a new one.... I tend to get very flustered during my shop visits and overly-agreeable with the owners/techs to make everything go smoothly. Of course in retrospect I wish I wouldn't have bought any old valve from him; in my flustered state of mind I failed to consider that I actually want and use the J-valve... So my question is: what was his likely reasoning for decommissioning this valve? An issue with the burst disc not being serviceable/replaceable or something? I'd like to get this one back in use if reasonable to do so USD J valve (2) - Copy by Jim Perdway, on Flickr USD J valve - Copy by Jim Perdway, on Flickr That J-valve is fine. Take out the old-fashioned burst disc with a standard screwdriver and replace with a modern 3x side-venting burst disc. Use correct in. Lb. Torque on installation and Bob's your Uncle. |
|
|
|
Post by james1979 on May 2, 2023 19:13:03 GMT -8
That pretty chrome USD J valve is too old and dangerous.... you should send it here for use, I mean proper disposal!
Personally, I'd open it up and replace packings and check the seats... Then install and dive the hell out of it.
|
|
|
|
Post by antique diver on May 2, 2023 20:15:58 GMT -8
It's a perfectly good valve, and parts are available. Most parts except orings are typically still functional. I have most other parts if needed.
.
(yes I know "O-ring", with the dash, is the correct spelling, but my right little finger doesn't like reaching for the dash. I guess I should practice that, but it will be hard to break the habit)
|
|
|
|
Post by Tusker on May 3, 2023 5:27:05 GMT -8
You could, in all likelihood, swap in a new burst disk and be ready to go. If it were mine, I'd break it down and clean everything up and repack it with new silicon like James said and go diving. It looks to be in great shape so it shouldn't give you too much trouble on that front.
As for decommissioning, a lot of shop owners seem to think J valves are a hazard to diving. Never minding that, as John has shared here before, they are still listed as appropriate safety equipment by governmental bodies.
Jacob
|
|
|
|
Post by mackintoshman on May 3, 2023 5:58:45 GMT -8
I think I need A tutorial on how to rebuild that and a J60.
|
|
|
|
Post by Jim Perdway on May 3, 2023 6:10:49 GMT -8
yep that’s what I’ve gotta learn now. I’ve never dug into any valve before
|
|
|
|
Post by james1979 on May 3, 2023 6:37:57 GMT -8
I think I need A tutorial on how to rebuild that and a J60. Info on both are in PDF's within the VDH Catalogs and manuals link. Bottom of the homepage, link takes you to a "files anywhere". From there, drill down into Manuals and Catalogs, US Divers Manuals testing parts drawings, near the bottom are the PDFs you'll want. |
|
|
|
Post by Jim Perdway on May 3, 2023 7:03:16 GMT -8
James you aught to start charging a fee for how quickly and accurately you can direct someone to the exact source for something...thanks again! so with this valve, here are my current projects (box in photo because it came from same home as the 1959 radio, and it's a neat box)  projects 5/23 by Jim Perdway, on Flickr |
|
|
|
Post by mackintoshman on May 3, 2023 8:16:19 GMT -8
Thanx James, and Jim, I don't know what I like better, the valve or radio. Also, I was wondering what are those radios on Mikes boat?
|
|
|
|
Post by vance on May 4, 2023 7:39:44 GMT -8
Another example of an uninformed dive shop idiot who only wants to sell you new stuff. He probably won't fill your tank with a J valve on it. You need to find a shop that isn't prejudiced against your gear.
I take my tanks to a fire extinguisher shop for hydros. They don't give me any grief, and charge less.
|
|
|
|
Post by Jim Perdway on May 4, 2023 8:00:10 GMT -8
I’ll have to start doing that too for hydros. It sucks because usually when I go to that shop, there’s a really cool, friendly lady working who loves all my old stuff. During this particular encounter with the owner working, I just left my 38 Sportways in the car and took them elsewhere haha.
Weird thing is that the guy has filled mine with J valves before, and he even put new burst discs in a couple of them. I don’t know what he had up his a$$ about this one.
I wish I lived near a Steele’s type of place!
|
|
|
|
Post by mackintoshman on May 4, 2023 8:09:41 GMT -8
I'll be bringing my steel 72 w/J valve in on Saturday. Got my fingers crossed.
|
|
|
|
Post by cnotthoff on May 4, 2023 9:08:14 GMT -8
I'll add my usual comment. If you need more of these USD J valves (or Scubapro, or Dacor) I've got a few that I'm happy to send your way.
And yes, properly maintained, these valves are every bit as safe as anything made today. Aqualung (née US Divers) doesn't offer seats for this valve, but Trident does.
Good Dives,
Charlie
|
|
