[PSUBS-MAILIST] HP Scuba hose

[Jon Wallace via Personal_Submersibles]

Is there some other way to tap HP off a SCUBA tank other than first stage regulator?  I was thinking of running the HP hose to a manifold that would feed the ballast tanks.

      From: Sean T. Stevenson via Personal_Submersibles <personal_submersibles at psubs.org>
 To: personal_submersibles at psubs.org 
 Sent: Sunday, March 11, 2018 10:54 AM
 Subject: Re: [PSUBS-MAILIST] HP Scuba hose
   
HP SCUBA regulator orifice is 7/16-20 UNF 2B thread. There are Swagelok and other fittings which will work, but watch your wrench clearances when using multiple adjacent ports. On that note, LP SCUBA ports are either 3/8-24 UNF - 2B (most common) or 1/2-20 UNF - 2B (less common). Be aware that while most HP SCUBA SPG hoses have a pinhole bore in order to reduce the consequences of a HP hose failure, some SCUBA regulators incorporate the pinhole restriction into the regulator itself, which will limit the available flow rate at high pressure. Of course, if your drawing gas off at high pressure anyway, why go through the reg?

Sean

Sent from ProtonMail mobile



-------- Original Message --------
On Mar 11, 2018, 07:12, Jon Wallace via Personal_Submersibles < personal_submersibles at psubs.org> wrote:



Are there adapters that can change a SCUBA HP hose fitting to NPT?
Jon
_______________________________________________
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/20180311/26438fca/attachment-0001.html>