Tweco 300 XT Auto-Cut 400V - Manual (Page 21)

AUTO-CUT 300 XT
Manual 0-5290 SPECIFICATIONS 2-5
2.08 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.
Auto-Cut 300 XT™ 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
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)
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.
Note 3: Water Pressure Regulator No. 8-6118 is recommended to ensure proper water pressure.
2.09 Gas Applications
MATERIAL MILD STEEL STAINLESS STEEL ALUMINUM
OPERATION PLASMA SHIELD PLASMA SHIELD PLASMA SHIELD
55A Cut
Air Air
Air Air Air Air
O2 O2
100A Cut
Air Air
Air Air Air Air
N2 H20 N2 H20
O2 O2 H35 N2 H35 N2
200A Cut
Air Air
Air Air Air Air
N2 H20 N2 H20
O2 Air H35 N2 H35 N2
300A Cut Air Air Air Air Air Air