MetFab - Air Products Welder's Handbook - Flipbook - Page 59
For manual cutting, it is recommended to
use nozzle mix torches as it significantly
reduces the risk of a flash-back.
An injector torch is typically used when
mechanised or machine cutting.
Injector torches
Cutting
Plate thickness
inches
Acetylene pressure
bar
Oxygen pressure
bar
3.0 - 10.0
0.5
2.0 - 3.0
10.0 - 25.0
0.5
3.0 - 4.0
25.0 - 75.0
0.5
4.0 - 5.5
Plate thickness
mm
Acetylene pressure
bar
Oxygen pressure
bar
0.5 - 1.0
0.2 - 0.25
2.5
1.0 - 2.0
0.2 - 0.25
2.5
2.0 - 4.0
0.2 - 0.25
2.5
3.0 - 5.0
0.2 - 0.25
2.5
4.0 - 6.0
0.2 - 0.25
2.5
6.0 - 9.0
0.2 - 0.25
2.5
9.0 - 14.0
0.2 - 0.25
2.5
Welding and brazing
* The information included in this document is for guidance only. Torch and/or
nozzle manufacturers’ recommendations should also be consulted. Please note that
recommendations may vary between manufacturers.
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