How To Use Acetylene Torch?

What do you turn on first oxygen or acetylene?

We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.

When shut down properly, this procedure can help detect even a minute leak in either the fuel or oxygen valve.

How does an acetylene torch work?

In this scenario, an acetylene torch is used to heat the metal to a kindling temperature while a stream of pure oxygen is applied to the desired area. This stream of oxygen causes the metal to burn rapidly and flow off of the object as an oxide slag, producing a perfect cut in the metal.

How do you use a torch?

How To Use A Cutting Torch –

How do you set a torch gauge?

Close both torch valves.

For the oxygen, turn the pressure-adjusting screw on the regulator until the gauge reads about 25 psi. For the acetylene, turn the pressure-adjusting screw on the regulator until the gauge reads about 10 psi.

What is the ratio of oxygen to acetylene?

2 to 1

What should oxygen and acetylene be set at?


Recommended oxy/acetylene cutting tip pressures vary with size. If you have no manufacturer setting- information, and are cutting less than 1 ½” thick steel, set the acetylene regulator for 10 psig, and the oxygen regulator for 40 psig.

Is acetylene bad to breathe?

The symptoms of acetylene inhalation include diz- ziness, headache, fatigue, nausea, vomiting, tachycardia and tachypnea [2]. Exposure to a high concentration of acetylene may result in a loss of consciousness and death [1] . Acetylene is a colorless gas commonly used for welding.

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What metals can be welded with oxy acetylene?

Low-carbon steel, low-alloy steel (e.g., 4130), cast steel, and wrought iron are easily welded with the oxy-acetylene flame. Low-carbon and low-alloy steels are the ferrous materials that are gas welded most frequently.

Do you use more oxygen or acetylene?

For the maximum flame temperature in oxygen, the ratio of the 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. Despite Propane being less expensive than acetylene, this is counteracted by the higher oxygen consumption.

How do you light an oxy acetylene torch?

  • Separately purge both oxygen and fuel gas lines.
  • Open fuel gas valve 1/2 turn.
  • Ignite flame with striker.
  • Increase fuel gas flow until flame leaves end of tip and no smoke is present.
  • Decrease until flame goes back to tip.
  • Open oxygen valve and adjust to neutral flame.
  • Depress oxygen lever and make necessary adjustments.

How much does a cutting torch cost?

Re: Cost of cutting torch

Lots of cutting torches on CL ranging from $250 to $500 as less need due to plasma cutters. You DO want to OWN the tanks as rental will kill you on price in long run. for “shotgun search” of pricing across country, then narrow down to your area.

How do you turn off an oxygen acetylene torch?

Close the acetylene hand valve on the torch, then the oxygen valve. This extinguishes the flame and eliminates the soot. 3. Open the hand valves on the torch, bleed lines, close hand valves on torch, turn regulator adjusting screws all the way out”.