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Heating Head Operating Replacement Parts Tip Injector Tip Extensions
Assembly Pressure Cleaning Cleaning (Accessory)
Fuel Tip Tip Mixer No. of Drill Drill
Size² Part No. Oxygen Gas Ass’y Stem Nut Tube Injector Holes Size Size Length Part No.
For Acetylene Use
55 O-A 998819 35-40 1/2-5 998797 998792 639969 639971 01Z14 9 61 59 12-in. 19X42
70 O-A 998820 45-50 1/2-5 998798 998792 639969 639972 01Z15 9 57 57 12-in. 19X42
100 O-A 998821 55-60 1/2-5 998799 998793 33A59 16Z54 01Z21 13 57 56 15-in. 19X43
200 O-A 998822 15-20 9-12n 998800 998794 998830 998832n 16 54 47 18-in. 998790
250 O-A 998823 20-25 12-14n 998827 998826 998831 998832n 16 53 47 21-in. 998825
For Fuel Gases Other Than Acetylene (FG-2, propane, natural gas, etc.)
70 O-FG 999232 40-45 1/2-5 999224 998792 639969 639972 01Z23 8 51 54 12-in. 19X42
100 O-FG 999233 50-70 1/2-5 999227 998793 33A59 16Z54 01Z99 8 52 56 15-in. 19X43
200 O-FG 999234 30-55 6-11n 999230 998794 998830 998832n 21 52 47 18-in. 998790
Welding and Heating Head Parts
Table 1 - Single-Flame Acetylene Welding Heads
Welding Replacement Parts Cleaning Drill Tip
Head Oxygen (Size No.) Extension
Assembly Metal Thickness Pressure Tip Mixer for for (Accessory)
Size
² Part No. In. mm. psin Tip Nut Tube Injector Tip Injector Length Part No.
4A 639865 1/32-1/16 0.8-1.6 7-18 639684 16Z26 01Z06 64 79
6A 639866 1/16-3/32 1.6-2.4 8-20 639685 16Z27 01Z07 58 77
9A 639867 3/32-1/8 2.4-3.2 10-24 639686 639870 16Z28 01Z08 55 75
12A 17270 1/8-3/16 3.2-4.8 10-25 17266 16Z29 01Z09 53 73
15A 639868 3/16-1/4 4.8-6 11-26 639687 16Z30 01Z10 53 71
30A 639869 1/4-1/2 6-13 18-29 17261 998847 16Z32 01Z12 45 65
55A 998101 1/2-3/4 13-19 25-39 998060 639969 639971 01Z14 33 59 12-in. 19X42
70A 998102 3/4-1 19-25 22-30 998061 639969 639972 01Z15 30 57
100A 10X03 45-55 998062 33A59 16Z54 01Z21 25 56 15-in. 19X43
150A 10X05 Heating 50-60 64Z22 33A58 16Z56 01Z23 17 54 18-in. 19X44
250A 10X07 70-80 12Z80 33A63 16Z58 01Z25 1/4-in. 52 21-in. 19X45
Table 2 - Standard Multiflame Heads
Heating Head Replacement Parts Tip Cleaning Injector Tip Extensions
Assembly Oxygen Cleaning (Accessory)
Pressure Tip Mixer No. of Drill Drilll
Size
² Part No. psin Tip Nut Tube Injector Holes Size Size Length Part No.
For Acetylene Use
70A 998047 40-45 998071 639969 639972 01Z15 7 56 57 12-in. 19X42
100A 11X22 55-60 998072 33A59 16Z54 01Z21 8 55 56 15-in. 19X43
150A 11X24 60-65 998073 33A58 16Z56 01Z23 12 55 54 18-in. 19X44
250A 11X26 75-80 12Y44 33A63 16Z58 01Z25 12 55 52 21-in. 19X45
For FG-2 Use
70 FG 998038 33-70 998078 639969 639972 01Z25 7 54 52 12-in. 19X42
100 FG-2 998281 34-88 998079 33A59 16Z54 01Z25 8 48 52 15-in. 19X43
150 FG-2 998265 32-70 998036 33A58 16Z56 998286 12 48 46 18-in. 19X44
For Fuel Gases Other Than Acetylene & FG-2
70 FG 998038 33-70 998078 639969 639972 01Z25 7 54 52 12-in. 19X42
100 FG 11X32 45-55 998079 33A59 16Z54 01Z21 8 48 56 15-in. 19X43
150 FG 11X34 50-60 998036 33A58 16Z56 01Z23 12 48 54 18-in. 19X44
250 FG 11X36 70-80 12Y60 33A63 16Z58 01Z99 20 48 50 21-in. 19X45
Table 3 -Rosebud-Style Multiflame Heating Heads
² Size indicates approximate acetylene flow rate in cu. ft./hr (cfh) at normal operating pressure. See Important Operating Notes on pg. 3.
n Acetylene pressure is 1/2 to 5 psi.
² See Important Operating Notes on pg. 3.
n Fuel Gas pressure is 1/2 to 5 psi.
² See Important Operating Notes on pg. 3. This stainless steel extension requires coupling 998838 for 200 size; 998839 for 250 size.
n IMPORTANT: P/N 998832 is a mixer; not an injector for low fuel gas pressure. Be sure to use operating pressures as given.
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