Add SPG to Divesoft Trimix analyzer?

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But, both gauges I linked to say they are glycerine-filled. I think I read somewhere else that a glycerine-filled gauge would NOT be suitable for O2 service? Does it even matter? The gas inside the gauge never touches the liquid that the gauge is filled with, right?
 
But, both gauges I linked to say they are glycerine-filled. I think I read somewhere else that a glycerine-filled gauge would NOT be suitable for O2 service? Does it even matter? The gas inside the gauge never touches the liquid that the gauge is filled with, right?
I use glycerin filled gauges with my O2 whip. It doesn't come in contact with the gas inside, it does dampen the needle but in retrospect I would skip the filled gauges. Its more fuel that serves no purpose.
 
I use a filled gauge on the compressor (vibration), and a dry model for the fill whip (cheaper to replace when it does get dropped).
 
The fittings that I found are only rated for something like 800 psi.

So, it looks like my only good option is to get the Divesoft adapter that has the G1/4 threads and then get a pressure gauge that has G1/4 threads.

@rjack21, the only G1/4 gauges I have found are glycerine-filled, so it's not that I'm spending up on purpose.

Besides, this gauge is only $18.49, with free shipping:

https://www.amazon.com/dp/B07CZJJNMH/

I would prefer to find one that only goes to 4500 psi and has more precise markings (100 psi resolution, instead of 200), but I think this one will be okay. and it's only 19 bucks...
 
For anything less than 40% I don't see an issue. But for 50%+ analysis I would go with something from a known manufacturer with a known supply line. Cause there is no way to O2 clean a gauge. And if their facility was dirty and there's glycerine in the bourdon tube its going to go bang.
 
@rjack321, just off the top of your head, do you have a line on a suitable PG with G1/4 threads? I haven't found one other than the ones on eBay that all seem "generic".
 
Getting that august industries g1/4 to 1/4" npt adapter is really the way to go.

Yeah, I pretty much just came to the same conclusion. Thank you and Bob for all the patience and help!
 
Okay, I ordered the BSP to NPT adapter, the (apparently) required bushing for the BSP side, and a 4000 psi Oxygen gauge from August.

*pshew*! :D
 
https://www.shearwater.com/products/teric/
http://cavediveflorida.com/Rum_House.htm

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