[PSUBS-MAILIST] Scuba Tank DIN connector to JIC

Thu Oct 13 09:55:18 EDT 2016

Steve,

Thanks for the clarification on the DIN connector.  In terms of the pressure regulator, what device do most people use to regulate the air pressure?  Is this something I could purchase from a SCUBA parts supply company?  

Regards,

Mark Widman
910-638-5229

Sent from iPhone.

> On Oct 13, 2016, at 9:17 AM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 300 is short for 300 bar, or the recommended maximum pressure of the fitting, indicating that it is a deeper thread than 200/232 bar fittings. The latter can be used with yoke style regulators (CGA-850) by using an insert in the female DIN on the tank valve. The 300 bar connection, being deeper, precludes this but is stronger. Similarly, if you have a 300 bar DIN fitting on your regulator, and screw it into a 200 bar DIN tank valve, it is compatible, but will show a couple of exposed threads which can be entrapment points.
> 
> DIN 477 is the actual thread specification.  Rarely seen in SCUBA equipment catalogs, but necessary if you're going to have a DIN thread machined.
> 
> Sean
> 
> 
>> On October 13, 2016 6:26:49 AM MDT, Mark via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> Thanks Steve,
>> 
>> This is exactly what I'm looking for.
>> (1/4" m NPT x DIN 300 m)
>> 
>> Sean recommended a DIN 477 connector, is there a difference (DIN 300 vs. DIN 477)?
>> 
>> Lastly, I would like to regulate the air pressure to something more reasonable like 100 or so PSI.  Can you recommend an air pressure regulator?
>> 
>> Regards,
>> 
>> Mark Widman
>> 910-638-5229
>> 
>> Sent from iPhone.
>> 
>>> On Oct 12, 2016, at 10:27 PM, Stephen Fordyce via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>> 
>>> Hi Mark,
>>> I have that sort of thing in my catalogue (TFM Engineering Australia), but being down under, not a lot of point sending them to you in the USA when you get can from the likes of:
>>> http://www.northshorecompressor.com/products/17B477D22-M-NPT-x-DIN-300-M.htmlhttp://www.northeastscubasupply.com/search.php?search_query=DIN+NPT&Search=
>>> 
>>> You might be able to do a bit better if you look around - but avoid the ones with bleeders for your application in ca! se it gets knocked.
>>> 
>>> Cheers
>>> Steve
>>> 
>>> 
>>>> On Thu, Oct 13, 2016 at 6:44 AM, Mark via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>> Hi Sean,
>>>> 
>>>> I have four SCUBA tanks mounted on the outside of the sub.  The SCUBA tanks are used to provide/control air for the external ballast tanks.  The air line runs from the SCUBA tank to a thru hull fitting in the sub (to a control valve) and then back out to the ballast tanks.  I need to acquire a connector from the SCUBA DIN to either NPT or JIC.
>>>> 
>>>> If I can order a DIN 477 to NPT that would suffice.
>>>> 
>>>> Regards,
>>>> 
>>>> Mark Widman
>>>> 910-638-5229
>>>> 
>>>> Sent from iPhone.
>>>> 
>>>>> On Oct 12, 2016, at 3:15 PM, Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>> 
>>>>> That's an oddball to find as a single piece, but you can certainly find male DIN 477 to e.g. NPT, and adapt that to a NPT/JIC.
>>>>> 
>>>>> What are you building?
>>>>> 
>>>>> Sean
>>>>> 
>>>>> 
>>>>>> On October 12, 2016 12:49:50 PM MDT, Mark via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>>>> Good afternoon, Psubs team:
>>>>>> 
>>>>>> Do you know if and where I could purchase a SCUBA tank DIN to JIC connector?  
>>>>>> 
>>>>>> Regards,
>>>>>> 
>>>>>> Mark...
>>>>>> 910-638-5229
>>>>>> 
>>>>>> Sent from iPhone.
>>>>>> 
>>>>>> 
>>>>>> Personal_Submersibles mailing list
>>>>>> Personal_Submersibles at psubs.org
>>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>>> _______________________________________________
>>>>> Personal_Submersibles mailing list
>>>>> Personal_Submersibles at psubs.org
>>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>> 
>>>> _______________________________________________
>>>> Personal_Submersibles mailing list
>>>> Personal_Submersibles at psubs.org
>>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>>> 
>>> 
>>> _______________________________________________
>>> Personal_Submersibles mailing list
>>> Personal_Submersibles at psubs.org
>>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>> 
>> 
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
> _______________________________________________
> Personal_Submersibles mailing list
> Personal_Submersibles at psubs.org
> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20161013/de57349e/attachment-0001.html>