Gas fittings - Non-Standard? SuperUltra 205

[Rambozo]

Since the SU has a front mounted pressure gauge, it makes sense that they left it off the combo regulator/filter on the back.

[gasseous]

Rambozo,

I realize that there is a pressure gauge on the front..... I was having trouble obtaining 50psi on that gauge... I was curious what the pressure was going into the regulator.... I could increase the output of my air compressor, from 85 psi, 50 feet away, but was afraid of putting too much into the input... Besides, I was curious what the line loss of the 50 foot hose would be....

Gasseous

[zoama]

You want to adjust the pressure while the air is flowing. I feed my PP60 about 80psi to maintain 70 while cutting. With 3/8" hose there shouldn't be any pressure drop over 50 ft.

[Rambozo]

The plugged port on the regulator is most likely after the regulator, so you won't see input pressure there. Line loss depends on the flow rate and the hose diameter. Typically those miniature regulators are rated to a max. input of 150 psi. For plasma, make sure you have nice dry air with enough flow. You may have received a small flowmeter that goes on your plasma torch to calibrate the pressure setting. You need to check the pressure when the trigger is pulled. Different consumables have different air consumption. Make sure you have enough air while cutting, and that your compressor can keep up.

[gasseous]

Tonight I went out and increased my output pressure to 80psi.... I was able to maintain 60 psi on the gauge on the front of the machine..... the plasma cutter would come on.... and begin to sputter.... then it would stop.... the cutter would not restart until the air coming out of the nozzle would shut off..... not sure if I need to increase or decrease the pressure.... but I have high hopes that it would do what I want... most of the metal I will be cutting is very thin.... but it is nice to know I will be able to cut thicker metal if required....