Oxygen Acetylene Safety
Oxy-Acetylene Safety
Oxygen
Oxygen is natural in the atmosphere
It is produced industrially by distilling air below it’s freezing point
Oxygen does not burn or explode
Oxygen is an accelerante, it causes every thing it comes in contact with to burn hotter and faster
Oxygen is heavier than air (1.105)
Oxygen is natural in the atmosphere
It is produced industrially by distilling air below it’s freezing point
Oxygen does not burn or explode
Oxygen is an accelerante, it causes every thing it comes in contact with to burn hotter and faster
Oxygen is heavier than air (1.105)
Never use oxygen……….
In pneumatic tools
In oil pre-heating burners
To start internal combustion engines
To blow out pipelines
To dust off clothing or work area
To create pressure
For ventilation
Remember, oxygen is not air
In pneumatic tools
In oil pre-heating burners
To start internal combustion engines
To blow out pipelines
To dust off clothing or work area
To create pressure
For ventilation
Remember, oxygen is not air
Acetylene
Acetylene is a compound of hydrogen and carbon (C2H2)
Explosive range is 3.0 to 93%
Needs only 10% oxygen to ignite
Produced when calcium carbide is mixed with water
Unstable gas, will violently decompose when in a pure state above 15 psi
Has a burning temperature of 4,600° F, 5,700° F when burned with oxygen
Auto-ignition temperature is 763° - 824° F
Acetylene is a compound of hydrogen and carbon (C2H2)
Explosive range is 3.0 to 93%
Needs only 10% oxygen to ignite
Produced when calcium carbide is mixed with water
Unstable gas, will violently decompose when in a pure state above 15 psi
Has a burning temperature of 4,600° F, 5,700° F when burned with oxygen
Auto-ignition temperature is 763° - 824° F
Oxygen Cylinders
Usually steel construction
244 cu. Ft is standard size
2000 to 2600 psi
Hollow in construction
An electric arc can cause an oxygen bottle to explode
The orifice at the top of the bottle is the diameter of the lead in a pencil
Never allow a tank to go empty
Keep free from oil and grease
Usually steel construction
244 cu. Ft is standard size
2000 to 2600 psi
Hollow in construction
An electric arc can cause an oxygen bottle to explode
The orifice at the top of the bottle is the diameter of the lead in a pencil
Never allow a tank to go empty
Keep free from oil and grease
Acetylene Cylinders
Usually are steel construction
Filled with a porous material to allow the acetone to dissolve the acetylene, which makes it stable
Porous filler(8-10%), acetone(42%)
Acetylene gas(36%),
Reserve volume-70o F(10-12%)
Comes in various sizes
Must always be stored upright
Should not be stored below freezing
Never allow a tank to go empty
Usually are steel construction
Filled with a porous material to allow the acetone to dissolve the acetylene, which makes it stable
Porous filler(8-10%), acetone(42%)
Acetylene gas(36%),
Reserve volume-70o F(10-12%)
Comes in various sizes
Must always be stored upright
Should not be stored below freezing
Never allow a tank to go empty
Regulators
1. Inlet connection
Oxygen-right hand thread
Acetylene-left hand thread
Oil, grease, & dirt free
2. Pressure adjusting screw
Clockwise-gas is allowed to flow
Counterclockwise-gas flow stops
3. High pressure gauge
Indicates pressure from tank
4. Low pressure gauge
Indicates delivery pressure to hose
5. Outlet connections
Hose connections
Right or left thread
1. Inlet connection
Oxygen-right hand thread
Acetylene-left hand thread
Oil, grease, & dirt free
2. Pressure adjusting screw
Clockwise-gas is allowed to flow
Counterclockwise-gas flow stops
3. High pressure gauge
Indicates pressure from tank
4. Low pressure gauge
Indicates delivery pressure to hose
5. Outlet connections
Hose connections
Right or left thread
Hose
Usually color coded - oxygen (blue) acetylene (red)
Neoprene over braided inner section
Flame retardant, but will burn
Hoses are graded
Usually color coded - oxygen (blue) acetylene (red)
Neoprene over braided inner section
Flame retardant, but will burn
Hoses are graded
Torch handle
Torch handle
Control valve & body”y”
Barrel
Torch head
Check valves
Prevents reverse gas flow
Flashback arrestors
Prevents flame from reaching the hose
Torch handle
Control valve & body”y”
Barrel
Torch head
Check valves
Prevents reverse gas flow
Flashback arrestors
Prevents flame from reaching the hose
Torch cutting attachment
Cone end and coupling nut
Preheat oxygen control valve
Mixing chamber tube
Cutting oxygen lever
Cutting attachment head
Cone end and coupling nut
Preheat oxygen control valve
Mixing chamber tube
Cutting oxygen lever
Cutting attachment head
Cutting tips and nozzles
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| Cutting tip |
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| Welding nozzle |
Cutting Charts
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| Cutting Charts |
Welding Procedure
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| Welding Procedure |
General Safety Tips
✔️Never allow oxygen to contact oil, grease or other flammable substances
✔️Use the proper regulator for each specific gas
✔️Only qualified technicians should repair a regulator
✔️Keep regulators free of oil, grease and other flammable substances
✔️Check valves stop reverse gas flow, they do not act as a fire stop
✔️Never starve a tip, this can cause a flashback
✔️Always keep cylinders in an upright position
✔️Never stand in front or behind a regulator when opening the cylinder valve
✔️Do not open acetylene valve more than 1 1/2 turns
✔️Always make sure area is safe and flammable free
✔️Never mix brands
✔️Purge the lines before and after usage
✔️Always wear protective clothing
✔️Use proper eye protection
✔️If flashback occurs, immediately turn off the O2, then the acetylene, and allow unit to cool
✔️Always work in a well ventilated area
✔️Always light the acetylene first
✔️Oxygen cylinders must be opened the whole way
✔️Use an approved striker, never use matches or cigarette lighter
✔️Use the proper regulator for each specific gas
✔️Only qualified technicians should repair a regulator
✔️Keep regulators free of oil, grease and other flammable substances
✔️Check valves stop reverse gas flow, they do not act as a fire stop
✔️Never starve a tip, this can cause a flashback
✔️Always keep cylinders in an upright position
✔️Never stand in front or behind a regulator when opening the cylinder valve
✔️Do not open acetylene valve more than 1 1/2 turns
✔️Always make sure area is safe and flammable free
✔️Never mix brands
✔️Purge the lines before and after usage
✔️Always wear protective clothing
✔️Use proper eye protection
✔️If flashback occurs, immediately turn off the O2, then the acetylene, and allow unit to cool
✔️Always work in a well ventilated area
✔️Always light the acetylene first
✔️Oxygen cylinders must be opened the whole way
✔️Use an approved striker, never use matches or cigarette lighter
Oxy Acetylene is the important gas used in welding. Can you share the company name where can I buy a oxygen Tank
BalasHapussorry I can't help u
Hapus