1. GROUP DISCUSSION
GROUP 4
Workshop Theory and Engineering Materials 2013

2. BASIC
Oxygen
Spark Fuel

3. Lists the gas commonly used as fuel in
oxygen –fuel gas cutting?
Identify the control on gas cutting blowpipe
and state their purpose?

4. LIST OF COMMON USED AS FUEL
 Mostly use acetylene.
 Others : propylene
 Liquefied petroleum gas (LPG)
 Propane
 Natural gas
 Hydrogen
 MAPP Gas

5. •Blue valve is for controlling the flow/pressure of
oxygen. Usually mark as ‘O’ or blue cap.
•Red valve is for controlling the flow of fuel
(acetylene). Usually mark as ‘F’ or red cap.

6. OXY-FUEL AND SINGLE TANK
 Torches that are not mix with oxygen are not
considered oxy-fuel torches, they are identified
as single-tank.
 They are use such as soldering and brazing.

7. ADDITIONAL INFORMATION
GASOLINE FOR CUTTING
STEEL

8. GASOLINE
 More power than acetylene and propane
 Cheaper to operate
 Safer; the torch cannot backflash up the fuel
line, due to fuel is liquid.
 Leak can be detect.