Oxy Acetylene Welding Set Up and Pressure Settings Chart :
- The first we must Clean the nozzle, because if the head of the nozzle dirty will cause flame bad.
- Open Regulator Oxygen and Acetylene, set until the pressure matching with what do you want or for acetylene 5 to 7 psi and Oxygen 7 to 10 psi.
- The third open valve in the torch, first acetylene after that you can open oxygen valve. ...
How to set the oxy acetylene regulators?
- Secure the oxygen and acetylene tanks in the torch cart.
- Remove the covers protecting the tank valves and attach the regulators to the valves.
- Attach the hoses to the regulators.
- Connect the other end of the hoses to the torch handle.
- Turn the valve on the oxygen tank completely open.
Does acetylene burn without oxygen?
Does acetylene burn without oxygen? Decomposition is a chemical reaction whereby acetylene breaks down into its constituent elements, carbon and hydrogen. This reaction gives out a great deal of heat, which can cause the gas to effectively ignite without the presence of air or oxygen.
What is different for oxygen and acetylene?
labeling and paint colours oxygen cylinders are painted black or black and white. acetylene are maroon or dark red they are also very heavy compared to the same size class for cylinders for other gases and are often more squat and fat compared to taller and skinny for oxygen etc. the valves have different threads all fuel gas cylinders have left hand threads all other gases are right hand threads so you can't fuck up and hook a fuel gas hose to a oxygen regulator and vise versa
How does acetylene react with ozone?
We will show that contrary to DeMore's claims the ozone–acetylene addition reaction in the gas phase is a true concerted reaction and does not involve any biradicals. There is however, beside the ozone–acetylene addition reaction, at higher energy the possibility of an O transfer from ozone to acetylene, which leads to ketene and molecular oxygen via a carbene intermediate with potential biradical character.
What should my oxy acetylene regulators 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.
What is the setting for oxy acetylene torches?
Turn keys, or knobs, on the regulators allow adjustment of the outlet pressure. Again, the setting should be no more than 15 psi for acetylene. Consult torch manufacturing for proper pressure settings for acetylene and oxygen.
What should regulator be set at on torch?
4:386:59How to set the oxy acetylene regulators - YouTubeYouTubeStart of suggested clipEnd of suggested clipOkay think of the two numbers ten. And five always my oxygen should be at a higher pressure than myMoreOkay think of the two numbers ten. And five always my oxygen should be at a higher pressure than my settling may rot want to run that thing up to 12 or 13 something like that.
What is the best way to set the oxygen pressure for cutting?
What is the best way to set the oxygen pressure for cutting? Increase the pressure slowly and readjust the flame as you watch the length of the clear cutting stream in the center of the flame.
Do you turn on oxygen or acetylene first?
First, Kevin opens the acetylene valve on the torch handle about 1/8 of a turn. Then he uses a striker to light the acetylene gas coming out of the welding torch tip. Next he open the oxygen, and the flame starts to change. As you open the oxygen, the flame gets larger.
What gauge pressure should acetylene never be set above?
greater than 15 psig. A violent, explosive decomposition reaction can occur. pressure at or above 15 psig with red marking on the gauge. There are a number of incidents each year where a flashback into an acetylene cylinder triggers decomposition, leaving the cylinder in a dangerous, unstable condition.
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.
What happens to acetylene above 15 psi?
Acetylene will not explode under low pressure at normal temperatures. However, it becomes unstable and spontaneously combustible when compressed to a pressure over 15 psi. Beyond 29.4 psi, it becomes self explosive, and a slight shock may cause it to explode even in the absence of air or oxygen.
What pressure should oxy acetylene torch be?
The oxygen pressure ranges between 0.7 to 2.8 bar (10 to 40 psi), depending on the size of the torch tip.
What is the ratio of oxygen and acetylene in gas cutting?
Natural GasTable : Fuel Gas CharacteristicsFuel GasMaximum Flame Temperature °COxygen to fuel gas Ratio (vol)Acetylene3,1601.2:1Propane2,8284.3:1MAPP2,9763.3:14 more rows
What 2 controls can be used to adjust the flame size on an oxy acetylene welding torch?
The welder can adjust the oxy-acetylene flame to be carburizing (aka reducing), neutral, or oxidizing. Adjustment is made by adding more or less oxygen to the acetylene flame.
What pressure should oxygen be in a torch?
For cutting everything is different and the oxygen pressure should be about 25 PSI.
Does acetylene gas explode?
You’ll notice that the acetylene gas has a mark around the fitting. This one does not on oxygen. That’s because this is left hand thread. They don’t want you mixing these things up, because here again if you’re running acetylene, which is just full of carbon, through an oxygen line, it could explode.
How many oxygen hoses do you need for an oxy acetylene torch?
If there isn’t an adaptor on the torch that unites these 2 connections, you will need to use 2 oxygen hoses, 2 regulators, and 2 oxygen tanks. Most new oxy acetylene torches come with built in adapters, but double-check with the manufacturer’s instructions to be safe.
What is an oxy acetylene torch?
An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. It uses extreme heat to function, and setting it up properly is one of the most important steps in using it safely. Using pressure-reducing regulators, connecting gas supplies, and safely lighting the torch flame are all essential ...
What is the difference between oxygen hose and acetylene hose?
Use a hose and hose connections specific to welding and cutting. Oxygen hoses will have a green cover, while acetylene hoses will have a red cover. Never interchange these hoses as they are meant for different substances. If one of your hoses have broken, replace it—don’t use tape of any sort to try and patch the hole.
How to get rid of black smoke in a flame?
Reduce the acetylene flow by adjusting the torch acetylene valve. The flame should start to produce black smoke around the edges. Once the black smoke appears, start to increase the acetylene flow back up again just enough to get rid of the black smoke.
How to connect oxygen hose to torch?
Attach the oxygen hose to the oxygen regulator and to the torch. The torch should have identifying marks on the body or the handle showing where the hose should be connected. Most torches have 2 oxygen connections because 1 is used for the cutting jet and 1 is used for the preheat flames. If there isn’t an adaptor on the torch that unites these 2 connections, you will need to use 2 oxygen hoses, 2 regulators, and 2 oxygen tanks.
How to clean a torch valve?
Clean the valve outlet of accumulated dust or dirt. Stand so the outlet is facing away from your body and open the valve a 1/4 turn, very quickly, and then close it. This will clear out any dust or dirt that may have settled in the valve. It needs to be cleaned out otherwise the debris might get into other parts of the torch and cause it to malfunction.
How to light a flame in a torch?
Open the torch acetylene valve 1/2 turn and light the flame. Use a friction lighter rather than a match for this step. A friction lighter is also called a torch striker, and these can be found at hardware stores. You will see a flame coming out of your torch. If for some reason there isn’t a flame, turn off the acetylene valve and check your connections.
What is oxyacetylene welding?
Oxy Acetylene welding is a welding process manually, in which the surfaces to be joined, which is warming to melt by a gas flame Oxyacetylene with or without filler metal, where the connection process without emphasis. In addition to the purposes of welding (connecting), gas welding can also be used as preheating, brazing, cutting, and hard facing.
How is oxygen obtained?
Technically, the oxygen is obtained from liquefied air. Then, by means of electrolysis, a mixture of air and water are separated by liquid oxygen. The difficult problem is between Nitrogen and Oxygen. Greater nitrogen boiling point and the boiling point of the gas is the only difference 13 0C only.
Is oxyacetylene a gas?
Therefore, Oxyacetylene often called hydrocarbon gas consisting of carbon, lime, and water. Oxyacetylene nature is odorless and colorless. Keep in mind that pure Oxyacetylene is very susceptible to an explosion caused by pressure and temperature factors. For this reason, the Oxy-acetylene generator is limited to a maximum pressure of 5 atm.
Is oxyacetylene welding perfect?
Oxyacetylene welding disability as follows: Penetration is less than perfect. It can happen because the penetration is not performed on the entire thickness of the base metal, weld bead two are not mutually perform inter-penetrating and penetrating into the end of the fillet weld. Fusion is less than perfect.
