Tweco K4000 - Manual (Page 13)

2-5
Table 2-1 - Recommended Minimum Air Requirements
Type of Torch
Air
Pressure¹
psi (kPA)
Air
Consumption
cfm (L/min.)
Recommended Compressor Rating
Intermittent
Use
hp (kW)
Continuous
Use
hp (kW)
ASME
Receiver
Size
gal (lit)
Light Duty² 40 (280) 8 (227) 0.5 (0.4) 1.5 (1.1) 60 (227)
General Duty²
80 (550)
25 (708) 5 (3.7) 7.5 (5.6)
80 (303) Multipurpose³ 33 (934) 7.5 (5.6) 10 (7.5)
Automatic 4 60 (414) 46 (1303) N/A 15 (11.2)
¹ Pressure while torch is in operation.
² Accommodates flat electrodes.
³ Generally considered a foundry torch.
4 Requires some kind of mechanical manipulation.
Use only compressed air. Using combustible compressed gases can cause explosions
that may result in personal injury or death.
2.07 Safety and Operating References
1. Code of Federal Regulations. (OSHA) Section 29 Part 1910.95, 132, 133, 134, 139,
251, 252, 253, 254 AND, 1000. U.S. Government Printing Office, Washington, DC
20402
2. ANSl Z49.1 “Safety In Welding and Cutting”
3. ANSI Z87.1 “Practice for Occupational and Educational Eye and Face Protection.”
4. ANSl Z88.2 “Standard Practice for Respiratory Protection.” American National Stan-
dards Institute, 1430 Broadway, New York, NY 10018.
5. AWS C5.3 “Recommended Practices for Air Carbon-Arc Gouging and Cutting.”
6. AWS F4.1 “Recommended Safe Practices for Welding and Cutting Containers.”
The American Welding Society, 550 NW Lejeune RD., P.O. Box 351040, Miami FL.
33135
7. NFPA 51B “Fire Prevention in Cutting and Welding Processes” National Fire Protec-
tion Association, Battery Park. Quincy MA 02269
8. CSA Standard W117.2, “Safety in Welding. Cutting and Allied Processes” Canadian
Standards Association, 178 Rexdale Blvd., Rexdale, Ontario, Canada M9W 1R3