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W
ELdiNg
WELDING INSTRUCTIONS
TEST
FOR LEAKS (see page 7)
ATTACH
welding nozzle to torch handle
CLOSE
both valves on the torch handle securely
ADJUST
the acetylene and oxygen regulators to proper working pressures
METAL
NOZZLE
THICKNESS
SIZE
1/32"
000
3/64"
00
1/16"
0
5/64"
1
3/32"
2
1/8"
3
1/4"
4
3/8"
5
1/2"
6
1-1/4"
7
HOLD
torch handle in one hand and striker in the other
OPEN
acetylene torch valve 1/4 turn and quickly ignite nozzle gas with striker
OPEN
slowly the acetylene torch valve farther until flame feathers at its edge slightly
ADJUST
flame to "Neutral Flame" by adding oxygen slowly
Light
Orange
Flame
Open Oxygen Torch
Valve Slightly
White
Acetylene
Halo
Bluish
Core
a. Starting to Add
Oxygen
SHUTDOWN PROCEDURE
CLOSE
oxygen and acetylene torch valves, then fully close both cylinder valves
OPEN
both torch valves counterclockwise to allow all pressure to bleed out
TURN
pressure adjusting screws counterclockwise and remove them from regulators
Proper welding techniques and weld preparation are outside the scope of this manual. Welding the thicker metals noted below will require special techniques,
such as edge chamfering, that are outside the scope of this manual. Welding books and classes are recommended to teach proper methods and technique.
ORIFICE
OXYGEN
DIAMETER
PRESSURE
0.024"
3-5 PSIG
0.028"
3-5 PSIG
0.031"
3-5 PSIG
0.035"
3-5 PSIG
0.039"
3-5 PSIG
0.051"
3-6 PSIG
0.067"
4-6 PSIG
0.079"
5-7 PSIG
0.091"
6-8 PSIG
0.126"
8-10 PSIG
Nearly
Colorless
Flame
Little or
No Halo
Blue-White
Core
b. Proper Oxygen Mix
Welding Flame Adjustment
www.ktindustries.net
PAGE | PAGE | PÁGINA
ACETYLENE
ACETYLENE
PRESSURE
(CFH)
3-5 PSIG
1-2
3-5 PSIG
1.5-3
3-5 PSIG
1.7-3.4
3-5 PSIG
2-4
3-5 PSIG
3-6
3-6 PSIG
5-10.5
4-6 PSIG
8.5-19
5-7 PSIG
11.5-26
5-8 PSIG
15-35
8-10 PSIG
30-60
Bluish
Orange
Flame
Close Oxygen Torch
Valve Slightly
Small, Less
Bright Core
c. Too Much Oxygen
5
Capable of welding
metals from 1/32" to
1-1/4" thick.
*IMPORTANT!
Failure to do this may
permanently damage
the regulators.
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