How do you set cutting gauges for torches?
What pressure should oxygen and acetylene be set at for brazing?
Oxygen and acetylene should be set at equal delivery amounts depending on the size and mass of the object being brazed. This would translate into 5 psi oxygen and 5 psi acetylene. These pressures are delivery pressures that must be set as the gas is flowing from the torch tip.What pressure should torches be set at?
NOTE: Most torch mixers use a “positive” design that requires fuel gas pressures set between 5-15 psi for cutting applications. However, some torches use an injector (low pressure) mixer design that only requires ¼ – 2 psi of alternate fuel gas.How do you adjust an oxygen regulator?
How do you use oxygen and acetylene cutting torches?
What should my oxy acetylene regulators be set at?
The recommended setting is for the fuel gas regulator to be set at 10 psig and the oxygen regulator at 45 psig.How do I adjust the pressure on my acetylene torch?
What is the ratio of oxygen to acetylene?
You need two atoms of oxygen for each carbon, and one per two hydrogens – that’s five in total. Since oxygen is diatomic, that’s 2.5 molecules of oxygen to one of acetylene, or a 5:2 oxygen:acetylene ratio. Practically any amount as acetylene gas has a wide range of combustions.How do you adjust a torch regulator?
What is the normal working pressure for acetylene?
The working pressure of acetylene equipment is critical: Acetylene pressure must not exceed 0.62 bar (9psi) unless equipment has been specifically designed for it.Do you use more oxygen or acetylene?
For maximum flame temperature in oxygen, the ratio volume of oxygen to fuel gas are 1.2 to 1 for acetylene and 4.3 to 1 for propane. So, there is far more oxygen being consumed when using propane than acetylene. Despite propane being less expensive than acetylene, this is counteracted by the higher oxygen consumption.Can I use a propane tip with acetylene?
Propane tips are recessed while acetylene tips are not. You can do it, but it will not be effective, and might actually be quite dangerous. Acetylene needs oxygen at a proper ratio to be fully effective as a cutting torch. Otherwise, you are just getting the metal really hot, rather than burning through it.What’s the hottest burning gas?
Fuel Gas & Melting Temperatures| Fuel Gas | Max Temperature |
|---|---|
| Acetylene | 3300°F |
| Propane | 2800°F |
| Hydrogen | 2650°F |
| MAPP® | 2900°F |
How far apart should oxygen and acetylene be stored?
20 feet Oxygen cylinders in storage shall be separated from fuel-gas cylinders or combustible materials (especially oil or grease), a minimum distance of 20 feet (6.1 m) or by a noncombustible barrier at least 5 feet (1.5 m) high having a fire-resistance rating of at least one-half hour.Can you weld with just acetylene?
Acetylene produces a flame temperature of ~3100 degree Celsius along with oxygen. This high flame temperature makes acetylene a suitable choice for gas welding steel. 2. Welding: When burned in oxygen, acetylene produces a reducing zone, which easily cleans the metal surface.What’s hotter acetylene or propane?
Acetylene releases almost 40% of its heat in the inner flame cone. Therefore, acetylene is better for cutting than propane. While temperature wise acetylene is hotter than propane the fact is that people are using propane for cutting incorrectly.Is it OK to lay down acetylene bottles?
Acetylene is highly flammable under pressure and is spontaneously combustible in air at pressures above 15 psig. Acetylene cylinders do not contain oxygen and may cause asphyxiation if released in a confined area. … Acetylene cylinders must not be placed on their sides, since the acetone and binders will have dislodged.What discharge acetylene gas pressure should not be allowed in welding or cutting operation?
Never use acetylene outside of the cylinder at pressures over 103 kPa (15 psig) unless you take special precautions. If an acetylene cylinder has been accidentally left on its side, set it upright for at least an hour before use. Otherwise, it will emit a burst of solvent instead of gas when the valve is opened.Why is the acetylene cylinder valve wrench always left on the valve?
The cylinder valve shall always be opened slowly to prevent damage to the regulator. … When a special wrench is required, it shall be left in position on the stem of the valve while the cylinder is in use so that the fuel gas flow can be shut off quickly in case of an emergency.Can you haul oxygen and acetylene laying down?
Haul the acetylene upright unless you want complications like them taking off as rockets and like paying to get the acetone refilled and have to burn acetone in your torch instead of acetylene for a while. Banging the valve end of an oxygen tank on the bed can wreck it too.Can you transport acetylene in a car?
Use a well-ventilated vehicle to transport acetylene. Many acetylene cylinders are collected and transported in unventilated vehicles. … If acetylene cylinders have been transported or stored horizontally, allow them to stand vertically for at least 30 minutes before use.Can you transport oxygen and acetylene laying down?
Home Health Workers and Patients Carrying Oxygen CylindersSecure tanks so they do not roll in a car. Liquid oxygen tanks should never be laid on their sides. Portable cylinders can be laid on their sides, but valves must be protected from collision. Tanks should never be placed in a tightly closed space like a trunk.
Do oxygen tanks need to be transported upright?
Liquid oxygen containers are designed to vent small amounts of gas when not in use. They must be secured in an upright position (ideally in the por- table cart) in the passenger compart- ment of the vehicle to allow the gas to vent.Can acetylene tanks explode?
Acetylene is highly unstable. High pressure or temperatures can result in decomposition that can result in fire or explosion. Acetylene cylinders must never be transported or stored in a closed vehicle.Why must you stand an acetylene tank straight up for 24 hours after if it has been laying down?
Store acetylene cylinders uprightIt is especially important for acetylene cylinders to be stored upright to prevent the gas separating from the acetone. This is so critical cylinders should be allowed to rest for at least for 1-2 hours if they have been moved about in the workplace or just received from the supplier.
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