Richard Dayan
Contributor
I bought a new octopus, should I put silicone grease on the O-rings or just install without? It didn't come with instructions. Also for HP gauge ect.
Thank you
Thank you
Need help assembly of octopus
- Thread starter Richard Dayan
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stretchthepenn
Contributor
If you're running air through your regulators, putting a light skim of silicone grease on the o-ring is a good idea. If you're running nitrox, the same is true, but using a specifically O2-compatible lube would be even better.
Short answer: Yes, lube the o-ring.
Short answer: Yes, lube the o-ring.
CuzzA
Wetwork for Hire
Just screw it in the port and give it very light pressure with a wrench. It doesn't need to be wrenched super tight. Just snug.
No lube is necessary.
Both ends are static o-rings, which don't need lube. The first-stage end is technically "dynamic" during installation, but there's really not enough pressure to worry about it.
On the first-stage end, no.
On the SPG end, the two small rings on the removable insert ("spool") ARE dynamic and should be lubed. Since they see high pressure, an O2-compatible lube (not silicone) would be ideal. However, if this reg only sees air or under 40% nitrox, silicone will work in a pinch. Very light -- just enough to make the o-ring shine.
OP
Richard Dayan
Contributor
The SPG is brand new cressi mini, do I still have to open and lube it? Or is it prelubed from the factory?
If the hose is already attached you don't need to do anything as it will be pre-lubed.
Do NOT put silicone grease on the o'ring. New regulators typically have Cristo Lube on their o'ring and mixing silicone grease with Cristo Lube is not good. No need to lube it it anyways.
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