[PSUBS-MAILIST] Parker Pressure Regulator

[Alan via Personal_Submersibles]

Hi Rick,
it is Aluminium & I believe I got the guy that welded it to weld it with
the end housings in to help stop it warping. Can't recall how difficult it was
getting the end housings out again.
I haven't had them leak yet & they have been under internal pressure
for a while now.
Alan


> On 16/10/2019, at 3:16 AM, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Alan
> 
> I see from the picture that you welded a piece of flat bar to the thruster housing. That puts a lot of heat in one area and my concern would be that the housing would warp a little causing the end that comes off with an O ring to not seal properly. I was thinking of welding something to my Minn-Kota for the rear thruster but am hesitating do to my concern of warping the housing and the O ring not making a seal anymore. Have you noticed any leaking problems where the main seal is?
> Rick
> 
>> On Tue, Oct 15, 2019 at 5:32 AM Alec Smyth via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> I believe I have the same one as Cliff. I'm going to look into swapping it out for a SCUBA second stage, which I think will be both more sensitive and definitely able to handle a larger off-gasing volume. What I'm wondering about is how to connect something that's intended for a human mouth to Swagelok tubing instead. Any suggestions are welcome!
>> 
>> Thanks,
>> Alec
>> 
>>> On Tue, Oct 15, 2019 at 1:14 AM Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>> Cliff & Alec,
>>> I have just been playing around with my Parker miniature regulator.
>>> As Alec noted there is quite a bit of pressure difference between the set
>>> pressure & the relieving pressure. I have been turning the pressure up
>>> to 20psi & then turning it down, & it takes a lot of turns to bring the pressure
>>> down again. Ie. 1 full turn to go to 20psi but 2 full turns to drop pressure
>>> back to zero.
>>> I am using a cheaper Aluminium version for experimentation & bought the 
>>> 0-125 psi range, which In hindsight was a mistake as I am not getting the 
>>> sensitivity I need.
>>> What range did you guys buy. I see you can get 0-25 psi.
>>> I am running my thruster full of silicone oil & just a few inches of air in the feeder
>>> tube from the regulator. 
>>> Alan
>>> 
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