Ann,
I have learned that gas pressure should be approx. 1/3 from Oxy pressure.
I guess a regulator with 50mbar or 30mbar should be fine for your setup. Donīt forget a hose rupture safety device.
Should look like:
https://www.ebay.de/itm/Schlauch-Set...53.m1438.l2649
You can call Gunnar (the shop owner, he speaks English)
0049 (0)4385 5960 444
You can give him the name of your torch and which Oxy you use. He is always very helpful and would tell you what you need and which settings would work best for you.
A regulator up to 4 bar is only useful for a Hot Head which needs a high gas pressure.
With your new torch/Oxy and a lower gas pressure you should have a significant larger setting range.
I run an Nortel Minor torch with an Invacare 5 Oxy /Pressure Relief Mechanism
Operational at: 35 psi + 3.5 psi (241 kPa + 24.1 kPa) .
My set up with propane should be:
Nortel Minor 0,2 - 0,5 bar gas pressure with this Oxy. Edit: My Oxy has an oxygen output like a brandnew one. I ran the Oxy at 3,5-4 l.
Now I run my torch on natural (household) gas and donīt need a regulator.
Uuuuh, hope this make any sense to you.
Margit