I'd like to tap the knowledge of the expereinced OA welders if I can.
Published information for OA welding with small tips - say a 0 are to use very low pressures such as 1psi (O) + 1psi (A). The problem is that the generally obtained Victor kits supply regulators that have an operating range of 5-125psi (O) and 2-15psi (A). It seems then that it's about impossible to obtain a well regulated 1+1 from these setups. I'm not referring to the guages - which admittedly are inaccurate at these pressures and in the case of the O guage only start at 5 or 6 psi, because you can
*ignore* the guages and bring the gases up from zero well enough - but the actual regulation of the gas. How is it possible to use 1+1 when the regulators won't reliably regulate to those low pressures? I've had it suggested to use 5+5 instead, but I can't obtain a nice quiet (ish) neutral flame at 5 and 5 with a 0 tip. The flame is too fierce for 18 or 20 guage steel.What do I do to obtain the right flame? Or what do *you* do?
Ken