G - Water Vortex Fittings - Lincoln Electric NERTAJET CPM 250 Safety Instruction For Use And Maintenance

G - WATER VORTEX FITTINGS

External water vortex :
Water supply of this vortex is independent of the torch.
This fitting is used to implement the plasma processes :
- mainly nitrogen,
- as well as industrial air or oxygen.
The water vortex allows significant reduction in annoyances because of the fact
that the cut generally takes place under water.
These fittings work with:
- flat electrodes whose type depends on the plasmagene gas used, and the
diameter of the insert depends on the cutting intensity,
- a barrel with gas vortex flow,
- cone nozzles
- water vortex nozzles :
the pair of these 2 nozzles is provided for maximum intensity use.
Destruction or rapid wear of electrodes.
- Verify the type of electrode according to the
plasmagene gas used.
- Check the condition of the gas barrel
- Check the cooling circuit
Destruction of the water vortex nozzle.
- Check the quality of the water supplying the water
vortex.
- Check the water flowrate of the water vortex (the
vortex water flow takes the shape of an umbrella)
Pressure 4 to 6 bars and flowrate from 1.2 to 1.5
L/min.
G-36
Marking and use of electrodes
W
= Tungsten nitrogen
H
= Hafnium oxygen or industrial air
Type of water of the water vortex
The water used must be demineralised with a neutral
ph (between 6.5 an 8.3), hardness less than 10°F and
resistivity higher than 100 KΩ/cm²./cm
Depending on the water characteristics, it is
recommended to use either a demineralising apparatus
or a reverse osmosis system or any other deionizing
installation.
8695 9064 / L
CPM 250-300-720-900