Transfill Whip

[H2O 70]

I'd like to make a Transfill whip for HP tanks.

I can source hose material with 3000psi rating, which would be fine for a blending whip, but I can't source hose material for 5000psi or higher rating.

In a beautiful world I'd find an O₂ safe, 5000psi hose so down the road if I get into blending I have the hose aspect already. Does such hose exist?

 

[ScubaAl]

BAUER Compressors genuine parts and full service with August Industries - August Industries Inc.

The Ultimate Fill Whip - atlanticunderwater.com

These two sites might help you get started.

Al

 

[H2O 70]

I looked up the McMaster-Carr part for the hose. Of course the hose they, Atlantic Underwater, suggest doesn't exist, but the new version only has a 3000psi rating. I want to transfill my HP tanks, which can be over 3400psi. What hose to people use to connect tanks in a cascade together? Those tanks are rated for 4500psi. Granted, you're not doing high FO₂'s at that pressure.

Thank you though for that link. That is basically what I would like to end up with!

 

[ScubaAl]

High Pressure Flex Hose August Industries Inc.

This is for 6000psi hose

If you "google" fill whip you can also find info

Al

 

[Wookie]

And don't get too wrapped around the axle looking for the teflon lined hose. The Parker 8R 5000 PSI thermoplastic hose with ss or steel ends works fine for all percentages of O2. You will want to replace the hose every year or so, as the thermoplastic breaks down more readily than teflon under high percentages of O2.

But why the high pressure. I don't know anyone that insists on having 3442 PSI of O2 in their cylinders. I don't know anyone but me that will fill that high, I only do it for high pressure rebreather cylinder fills, and I use the teflon lined metal braided O2 hose hith a high degree of satisfaction. What do you want to do higher than that?

 

[fppf]

Call these people.
Cost is about $150 for a 6 foot hose with stainless JIC fittings.
Teflon lined with static dissipative liner and they can O2 clean for you.

http://www.pageintl.com/assets/pdfs/002-maxpac.pdf