Welding torch single flame universal torch for oxy-acetylene welding, brazing and heating
The welding torch “DONMET” 251, hereinafter referred to as the welding torch, is designed for hand oxy-acetylene welding, brazing, heating and other kinds of thermal treatment of metals.
The welding torch basic parameters conform with ISO 5172.
GENERAL TECHNICAL SPECIFICATION
| Used gas fuel | Acetylene |
| Gas mixing type | low-pressure |
| Welding metal thickness, mm | 2 – 11 |
| Oxygen inlet thread (hose) | G1/4 (Ø6) |
| Gas fuel inlet thread (hose) | G3/8 (LH) (Ø8) |
| Cutting torch length, mm, no more than | 400 |
| Cutting torch weight, kg, no more than | 0,41 |
| Countries where the above-mentioned connection threads are applicable | Poland, Bulgaria, Germany, Austria, Switzerland, Czech Republic, Slovakia, Hungary, Scandinavia, Romania |
TECHNICAL SPECIFICATION
| Parameters | Tip № | ||||||
| 3 | 4 | 5 | 6 | 7 | |||
| Welding thickness, mm | 2 – 4 | 4 – 7 | 7 – 11 | 11-17 | 17-30 | ||
| Pressure, bar |
– oxygen – acetylene |
2,0 – 2,5 0,1 – 1,2 |
2,0 – 2,5 0,2 – 1,2 |
2,0 – 2,5 0,3 – 1,2 |
2,0 – 2,5 0,4 – 1,2 |
||
| Consumption (nominal) l/h |
– oxygen – acetylene |
270 – 350 200 – 335 |
375 – 525 350 – 450 |
630 – 840 545 – 725 |
825 – 1240 710 – 1060 |
1400-2800 1250-2430 |
|
| Welding speed, mm/min. | 90 – 55 | 55 – 40 | 45 – 30 | 30 – 20 | 20-10 | ||
| Filler rod consumption for 1m of welding seam, kg | 0,2 | 0,45 | 0,98 | 2,3 | 5 | ||
| Flame core length, mm | 10 | 12 | 14 | 16 | 18 | ||
DELIVERY SET
| Designation | Order № | Quantity |
| “DONMET”251(with tips № 3,4,5) | 251.000.01 | 1 |
| Label | 1 |
SPARE PARTS
| Designation | Order № | Welding thickness, mm |
| Tip № 2 | 225.100.17 | 1 – 2 |
| Tip № 3 | 225.100.03 | 2 – 4 |
| Tip № 4 | 225.100.04 | 4 – 7 |
| Tip № 5 | 230.200.00 | 7 – 11 |
| Tip № 6 | 230.200.01 | 11-17 |
| Tip № 7 | 230.200.02 | 17-30 |
| Ring 008-012-25 | 142.006.00 |
