Tweco 300 Auto-Cut - Manuel (Page 21)

Manual No. 0-4817 Auto-Cut 300 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.
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 (5700 l/h)
H
2
O (Water) See Note 2 50 psi (3.5 bar) 10 gph (38 lph)
Auto-Cut 300 BASIC 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.
2.10 Gas Applications