[PSUBS-MAILIST] regulator

[Alan via Personal_Submersibles]

Hank,
if it were a non relieving it would have a K designation after the 02B.
https://store.livhaven.com/downloads/dl/file/id/4873/datasheet.pdf
You will need to take the plastic handle off to put a plastic tube over
the relief valve outlet to help stop any water going past the relief valve, 
& as you probably know, mount it upside down. When you do this you
may be able to see the air bubbling out if you place it upside down in
water, pressurise your arm, & then back the pressure off the regulator
as you have done before.
You have gone with the brass & not stainless. Was it a lot cheaper?
Does the 3L tank get fed continuously from the main tank, so that if there
was a leak it would drain the whole of your main tank before any pressure
in the motor or arm dropped below ambient?
If you noticed an unexpected drop in main tank pressure & suspected it
was caused by the thruster, you could shut off air to the regulator & go up
knowing that as you ascend you will always have at least ambient pressure.
I made enquiries with Fugu sub about compensating & they said they
preferred air for brushed motors & liked to see a bit of air bubbling out as
a reassurance they had some positive internal pressure.
Cheers Alan 


Sent from my iPad

> On 31/03/2018, at 6:43 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> Cliff,
> I just installed my R364-02B regulator on my arm and the instructions talk about a non relieving model.  I assume this one is relieving because when I reduce the pressure to the arm the excess pressure bleeds off when turning the adjustment knob. Is that correct?   
> Also to anyone with an opinion, the air system regulator for compensation to the arm is literally 1 foot from my side positioning thruster.  This makes me think I should air compensate that thruster instead of oil.   The system works with a small 3L air holding tank that is maintained at 300 psi from the main HP tank.  I am not sure if I should risk feeding the thruster from the small tank, in case the thruster seal  leaks it could cause the arm to flood.  
> Hank
> 
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