10 gas requirements, 11 gas applications, 10 gas requirements -5 2.11 gas applications -5 – Tweco 300 Ultra-Cut(March 2013) User Manual
Page 21: Ultra-cut 300

Manual No. 0-5134
2-5
SPECIFICATIONS
ULTRA-CUT 300
2.10 Gas Requirements
The customer will provide all gases and pressure regulators. Gases must be of high quality. Pressure regulators
shall be double stage and installed within 3 meters from the Gas Console.
Gas
Quality
Minimum Pressure
Flow
O
2
(Oxygen)
99.5% Purity
(Liquid recommended)
120 psi
8.3 bar / 827 kPa
200 scfh (5700 l/h)
N
2
(Nitrogen)
99.5% Purity
(Liquid recommended)
<1000 ppm O
2
, <32
ppm H
2
O)
120 psi
8.3 bar / 827 kPa
300 scfh (8496 l/h)
Compressed
or Bottled Air
Clean, Dry,
Free of Oil (see Note 1)
120 psi
8.3 bar / 827 kPa
450 scfh (12743 l/h)
H35 (Argon-Hydrogen)
H35 = 35% Hydrogen,
65% Argon
99.995% Purity
(gas
recommended)
120 psi
8.3 bar / 827 kPa
200 scfh (5664 l/h)
Ar (Argon)
99-995% Purity
(gas recommended)
80 psi
5.5 bar / 550 kPa
64 scfh (1800 l/h)
H
2
O (Water)
See Note 2
50 psi (3.5 bar)
10 gph (38 lph)
Ultra-Cut 300 Power Supply: Gas Pressures, Flows, and Quality Requirements
Note 2: The tap water source does not need to be deionized, but in water systems with extremely high
mineral content a water softener is recommended. Tap water with high levels of particulate matter must be
filtered.
Note 1: The air source must be adequately filtered to remove all oil or grease. Oil or grease
contamination from compressed or bottled air can cause fires in conjunction with oxygen.
For filtering, a coalescing filter able to filter to 0.01 microns should be placed as close as
possible to the gas inlets on the Gas Control Module.
2.11 Gas Applications
MATERIAL
OPERATION PREFLOW
PLASMA
SHIELD
PREFLOW
PLASMA
SHIELD
PREFLOW
PLASMA
SHIELD
Air
Air
Air
Air
Air
Air
N
2
N
2
H
2
0
N
2
N
2
H
2
0
Air
Air
Air
Air
Air
Air
N
2
N
2
H
2
0
N
2
N
2
H
2
0
Air
Air
Air
Air
Air
Air
N
2
N
2
H
2
0
N
2
N
2
H
2
0
85A Cut
Air
Air
Air
N
2
H
35
N
2
N
2
H
35
N
2
N
2
N
2
H
2
0
N
2
N
2
H
2
0
N
2
H
35
N
2
N
2
H
35
N
2
N
2
N
2
H
2
0
N
2
N
2
H
2
0
300A Cut
Air
O
2
Air
100A Cut
150A Cut
O
2
Air
Air
O
2
Air
50A Cut
O
2
Air
Air
70A Cut
O
2
Air
Air
O
2
O
2
Air
Air
MILD STEEL
STAINLESS STEEL
ALUMINUM
30A Cut
GAS TYPE
GAS TYPE
GAS TYPE