O2 safe Teflon tape?

[happy-diver]

Amazon.com : green teflon tape

www.amazon.com

 

[JohnN]

And the problem turned out to be a blown O-ring. No Teflon tape needed

 

[iain/hsm]

I was advised my the PO to use O2 safe Teflon tape to seal a H2O monitoring sight port that sits between the filter stack and back pressure valve

Which if this blown 0-ring is on the visual indicator you need to take extra care
1. I think you will find that your indicator is 1/4 NPT taper on both sides inlet and outlet
If so they need NPT taper fittings and PTFE tape

2. If the burst 0-ring is on the top cap to body on the indicator then a 90 shore AS 019 Viton from memory

3. The only other 0-ring used on a visual indicator is to seal the view port.

Now I'm also aware that the Black Hard anodised viewports are available in NPT or in addition 9/16 UNF 0-ring sealed one or both ends and if this is the case then you have the wrong fitting attached to it.

Again when others dick about with properly engineered products they have no idea that 9/16 UNF only describes the thread. In addition the term BOSS fitting needs to be added to ensure a correct assembly O-rings don't just blow out of critical pressure components.

There is a great difference between a cheap plumbers 9/16 fitting and a proper high pressure 9/16 connection. The problem being the ignorance in the detail. Iain

 

[iain/hsm]

Amazon.com : green teflon tape

www.amazon.com

I see a problem here.

1. Five or six of them say plumbers tape
2. One of them says Mil Spec T-27730A
3. The rest say nothing but the colour

One is close but not close enough, five or six of them are rubbish and the rest probably are used on your
Coltri's and second hand old Bauers at your LDS LOL

 

[-JD-]

I padded my last order with a roll to hit the free shipping level.

PTFE Seal Tape - Oxygen Service

Premium quality full density 1/4-inch wide PTFE thread sealing tape suitable for use with Nitrox, Trimix and Oxygen breathing gas handling equipment commonly encountered in support of SCUBA diving applications.

www.divegearexpress.com

Will be dedicated for my compressor/filter work.

 

[happy-diver]

second hand old Bauers

Ha ha ha sounds like me but I don't think I really use tape

View attachment 804164

Ha ha ha anyone tell me which anaerobic sealant I should use with O2 ha ah ha ha ha

Although one of em ain't old