Scubapro r190 freeflows at 140ft?
- Thread starter ericpitar
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R
redacted
Guest
None. But why don't you have some fun and ask him to explain why that would occur. Sounds to me like he is focused on helping his employer sell you something much more expensive.
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You can get almost anything to freeflow if you work at it hard enough.
Any non-sealed reg will freeflow if you move enough air across the first-stage orfice in cold enough water.
The exact point depends on the tank pressure, depth, water temperature, air usage and regulator design.
Nobody can say that any particular regulator will freeflow at any specific depth, since it depends on all sorts of other variables.
He was probably trying to sell you something or buy your r190 from you cheap.
Terry
keyshunter
Contributor
Is that at EXACTLY 140'? What about 139'? 141'?
That is total nonsense. I would definitely find another tech.
Hank49
Contributor
I've had 4 different R190s that I have owned much deeper than that and I never had a free flow.
With a straight face, ask him is that all 190ies or just the ones he's worked on.
i told him i had an r295 and r190 octo but intended to use the r190 as primary....that's when he warned me r190's freeflow at 140ft....Anybody have a paddle to get the truth to what his true agenda is? 
He wasn't trying to sell me anything at the time but I'll give you guys an update when there is one. Thanks for all your inputs!!
ps
couv, that is tooo funny, man.
He wasn't trying to sell me anything at the time but I'll give you guys an update when there is one. Thanks for all your inputs!!ps
couv, that is tooo funny, man.
You may want to point out to mister wonder tech that the R190 and R295 share EXACTLY the same internal parts as they use EXACTLY the same poppet assembly.
It's sad to say but many techs out there know very little about how regs really work and they just repeat what ever BS some other idiot told them.
It's sad to say but many techs out there know very little about how regs really work and they just repeat what ever BS some other idiot told them.
halocline
Contributor
This is a good one.
I'm trying to figure out the reasoning behind a claim like this, and the only thing I can come up with is that the guy thinks that because IP rises as depth increases, at somewhere around 140 ft the IP would be high enough to crack open the valve, which as an unbalanced second, is held shut by spring force. I guess we're talking about more or less 4 atm or 60PSI, at this depth, which means if the 1st stage is working right the absolute IP would be about 200PSI, which is certainly enough to open a downstream 2nd. But, the guy forgot one "tiny detail," namely that ambient pressure is working against IP to keep the valve closed. Otherwise (I would guess) no downstream 2nd stage would ever work at anything other than very shallow depths.
I'm trying to figure out the reasoning behind a claim like this, and the only thing I can come up with is that the guy thinks that because IP rises as depth increases, at somewhere around 140 ft the IP would be high enough to crack open the valve, which as an unbalanced second, is held shut by spring force. I guess we're talking about more or less 4 atm or 60PSI, at this depth, which means if the 1st stage is working right the absolute IP would be about 200PSI, which is certainly enough to open a downstream 2nd. But, the guy forgot one "tiny detail," namely that ambient pressure is working against IP to keep the valve closed. Otherwise (I would guess) no downstream 2nd stage would ever work at anything other than very shallow depths.
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