Tables Of Current Carrying Capacity; Current Carrying Capacity And Plasma Gas Quantities For Standard Nozzle 18 Mm / 0.71 Inch - EWM PHW 100 Operating Instructions Manual

5.8

Tables of current carrying capacity

The indicated gas flow rates are guide values. Depending on the application, other values may
lead to a better welding result. The plasma gas must stream out with a minimum quantity depen-
dent on the nozzle aperture and current. If the quantity falls below the minimum, damage to the
welding torch can be expected.
Item Symbol
1
2
The plasma nozzles and electrodes have a limited current consumption capacity that should not be
exceeded. The limit values are listed in the table below:
5.8.1 Current carrying capacity and plasma gas quantities for standard nozzle 18 mm /
0.71 inch
Guide values for the current-carrying capacity of PHW 100 plasma nozzles, electrode at the negative po-
le, electrode diameter 1.0, 1.5, 2.4 mm / 0.04, 0.06, 0.09 inch.
The plasma gas used is generally Argon.
Diameter of plasma nozzles
0.5 mm / 0.02 inch
0.6 mm / 0.02 inch
0.8 mm / 0.03 inch
1.0 mm / 0.04 inch
1.2 mm / 0.05 inch
1.4 mm / 0.06 inch
1.6 mm / 0.06 inch
1.8 mm / 0.07 inch
2.0 mm / 0.08 inch
2.2 mm / 0.09 inch
2.4 mm / 0.09 inch
2.6 mm / 0.10 inch
3.0 mm / 0.12 inch
3.2 mm / 0.13 inch
099-008232-EW501
26.05.2020
Description 0
Plasma gas quantity
Plasma nozzle size
Amount of plasma
gas
0.1-0.2 l/min
0.03-0.05 gal/min
0.2-0.3 l/min
0.05-0.08 gal/min
0.25-0.4 l/min
0.07-0.11 gal/min
0.3-0.5 l/min
0.08-00.13 gal/min
0.4-0.6 l/min
0.11-0.16 gal/min
Design and function
Tables of current carrying capacity
Figure 5-8
Electrode diameter
1.0/1.5 mm / 0.04/0.06 inch
1.0/1.5 mm / 0.04/0.06 inch
1.0/1.5 mm / 0.04/0.06 inch
1.0/1.5 mm / 0.04/0.06 inch
1.5 mm / 0.06 inch
1.5 mm / 0.06 inch
1.5 mm / 0.06 inch
1.5 mm / 0.06 inch
1.5/2.4 mm / 0.06/0.09 inch
1.5/2.4 mm / 0.06/0.09 inch
1.5/2.4 mm / 0.06/0.09 inch
1.5/2.4 mm / 0.06/0.09 inch
1.5/2.4 mm / 0.06/0.09 inch
1.5/2.4 mm / 0.06/0.09 inch
Current
8 A
10 A
20 A
25 A
30 A
40 A
50 A
60 A
70 A
80 A
85 A
90 A
100 A
100 A
17