Tweco 100 Auto-Cut - Manual (Page 31)

Manual 0-4764 2-5 SPECIFICATIONS
2.09 Gas Requirements
The customer will provide all gases and pressure regulators. Gases must be of high quality. Pressure regulators
shall be equipped with stainless-steel diaphragms and installed as close as possible to the Gas Console. NOTE:
The chart includes gases which may not be used in all applications.
Auto-Cut 200 BASIC Power Supply: Gas Pressures, Flows, and Quality Requirements
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
Air
Clean, Dry,
Free of Oil (see Note 1)
90 psi
6.2 bar / 621 kPa
400 scfh (11327 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)
H
2
O (Water) See Note 2 50 psi (3.5 bar) 10 gph (38 lph)
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.
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.
2.10 Gas Applications
MATERIAL MILD STEEL STAINLESS STEEL ALUMINUM
OPERATION
GAS TYPE GAS TYPE GAS TYPE
PLASMA SHIELD PLASMA SHIELD PLASMA SHIELD
55 A CUT
Air Air
Air Air Air Air
O 2 Air
100 A CUT
Air Air Air Air Air Air
O 2 Air N 2 H 2 0 N 2 H 2 0