Oxy Acetylene Torch Settings – The most frequently used tool for cutting is known as the oxy-fuel or oxy-acetylene torch, often referred to as the blow torch. Utilizing a cutting torch can be straightforward in principle. Some users find it difficult to employ, let alone create an accurate cut.
This is why it’s important to choose the correct settings. Many of them don’t know the correct settings, especially the pressure at which they work. This is why the work they produce isn’t of high quality.
Rules of Thumb For Oxy Acetylene Torch Settings
An effective use of an oxygen-acetylene cutting torch will ensure that the quality of cuts can be compared to plasma machines. This is especially true with the proper setting of the pressure. Not only that, this will also ensure a secure operation.
The best thing to do is adhere to the oxyacetylene torch settings recommended by the maker of the torch you’re using. The following description outlines general guidelines that are not intended to substitute the recommendations of the manufacturer.
Best Oxy Acetylene Torch Kit Sets
Are you looking to upgrade your oxy-acetylene torch kit? The following table provides our suggestions of the best torch kits that offer the most affordable option as well as the top high-end option. Be sure to perform your work safely and efficiently!
|The most economical option||Runner-up||The best High-end||Best cheap option|
|Recommendation||ZenStyle Gas Cutting Torch||Hobart Medium Duty||VictorESAB Victor 0384-2125||Stark Professional|
|Users Review||“Didn’t know you can get this kind of quality product on Amazon! Didn’t leak and the flow capacity is great. The customer service was also very responsive and helped me to set it up even during the weekend!”||“Works very well. I have cut metal 7/8″ thick with the supplied tip. Would buy again.”||“Heavy plastic protectors all around the gauges, with big, heavy-duty handles to match.”||“this is the second set of gauges i have bought for my shop, they are sturdy and work well.”|
|Our professional opinions||A great value set that can be used to complete the task.||Similar quality to “best value” option but more expensive.||A trusted American company you can be sure of.||A good budget, but with some limitations.|
Oxy-Acetylene Cutting Pressure Settings & Chart
Check out the chart for oxy-acetylene pressure setting to know what your torch needs to be set at for most efficient outcomes.
|The thickness of the metal in inches||Size of the tip||Pre-heat oxygen (PSIG)||Pre-heat oxygen (SCFH)||Cutting oxygen (PSIG)||Cutting Oxygen (SCFH)||Speed (IPM)||Acetylene (PSIG)||Acetylene (SCFH)||Kerf Width (inches)|
Multi-hole cutting: Oxy Acetylene Torch
The most recommended setting is that the regulator for fuel gas to be set to 10 PSIG, and the oxygen regulator to be set at 45 PSIG. This advice is applicable for working shorter than 1.5-inch steel with propylene, propane, or natural gas.
The most recommended setting for cutting multi-holes is to set the oxygen regulator at 40 PSIG, and the acetylene regulator to 10 PSIG. Like the previous recommendations, the same applies when cutting less than 1.5 inches of steel. The cutting tip’s oxyacetylene pressure will vary based on the thickness. It is recommended that the manufacturer’s guidelines be adhered to.
Single-hole brazing and welding
Begin looking for the single-hole-stamp to determine the number that it is. Both the fuel gas regulator and the oxygen regulator must be set to the specified setting. This is not applicable for injector-style options.
If you notice that the tip is marked with an inscription of “5” on it, it is the point at which both oxygen and gas pressure must be set.
In contrast to the hand-held blow torch that is portable, the various components need to be installed. This ensures a smooth process that could yield high-quality results. Also, it reduces the chance of accidents, particularly blasts or flashbacks.
Here are the steps to take in setting up an oxy-acetylene torch:
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How To Set Up An Oxy Acetylene Cutting Torch Pressure
- Make sure that the tanks or cylinders with the two gases inside are securely secured and placed in a straight position.
Utilize a cylinder cart when there is one available. Make sure they are connected or chained to a solid surface such as the wall or beam. They should not be dragged down while in operation or not when not in use.
- Get rid of any coverings on the valve of the cylinder , or tank.
If protection covers were not utilized take off any debris or dust that may have accumulated inside the valves. It could make the torch fail. In order to prevent this from happening, keep at a distance from the valve’s opening or outlet (preferably on the opposing side). It is recommended to turn the valve swiftly around a quarter of the way, then close it. This rapid gas release air will quickly blast away dust or particles.
- Connect the valves and regulators, however, make sure they have identical threads.
If not, you can use an adapter to connect the two. They must be a secured and tight fit for security and accurate monitoring of the pressure setting. Tighten them by hand and use a wrench that has a fixed opening to complete tightening them.
- Make sure to connect the correct fittings to the hoses even if they’re disconnected from the appropriate regulators.
If you’ve utilized them before, you can attach them to the exact tanks that you did before. The usual method is to utilize green hoses for oxygen, and red hoses to supply acetylene. Do not apply oil or grease or other fluid onto the hoses. Be sure to apply it to the hose’s ends.
- The torch’s handle should be connected to the two pipes.
Once the torch is secured, connect the torch on the handle, and then manually tighten the bolt. Examine the valves on the handle and the torch and handle, since they need to be shut before opening the valves on both the cylinders.
- Make sure to turn the valve of your oxygen tank until it’s completely open.
Find the regulator’s adjustment screw, and move it clockwise until it indicates that the pressure being released is ranging from 40 to 60 psi.
- To open the acetylene cylinder perform a counterclockwise spin to the valve. Turn it just about a quarter.
Turn the adjustment screw on the regulator until it releases gas and the gauge displays 10 psi.
- Locate the oxygen valve and then open it a little so that it will begin flow.
The same procedure applies to the acetylene valve , but don’t open it over 45 degrees or 1/8 turn.
- Perform a leak test.
Apply a coating to the connections and valves between the hose, cylinder and regulators with a leak-testing solution or thin paste. It is made through the dissolution of Ivory soap and applying it using an unclean brush for its application. The leak can be detected when you notice tiny bubbles appearing on the coated surface after the mixture has been allowed to rest for a short time.
- If you notice leaks You must tighten or reconnect connections first, and conduct another leak test prior to using the torch.
- If no leaks have been detected, you must follow the manufacturer’s guidelines to ignite it.
Make sure you watch the flame while you work with it. If it is unable to light while you’re working, stop the work and simply light it again. This type of event is known as a backfire. It occurs when the torch and the cutting metal come into contact.
How to Light Oxy Acetylene Torch
An acetylene torch’s lighting is quite simple, but it is essential to follow the proper procedures to accomplish this. This is mostly about tinkering with the two valves in the cutting torch until you get the proper type of flame. Also, ensure that both regulators display the correct quantities of psi prior to the torch is lit.
The steps below are routine procedures, but you should always check your manufacturer’s instructions for the specific directions:
- Start the valve by turning one half-turn, then use spark lighters or friction to ignite a flame out of the torch. Don’t make use of matches. There should be a 1-inch space between the top of the lamp and the fire that is coming from the lighter.
The use of a match to light is dangerous. You could burn yourself if the flame is released. There are also ignition devices, so lighting them with an igniter isn’t necessary.
- Soot or black smoke may appear along when the flame is ignited. Make sure to wait until it goes away before gradually opening the oxygen valve. The valve will be released, which will eliminate any yellow spots of the flame, which is necessary to ensure an even flame.
- Adjust both valves for an even flame. It should have a tiny bright blue, whitish or white centre and be clearly shaped to resemble the shape of a cone.
If you are lighting it, be sure the tip is away from anyone or any other object that is flammable to prevent any accidents.
Oxy Acetylene Torch: Tip Sizes & Tricks
Selecting the correct tip size for the cutting torch you are using will depend on the thickness of the metal as well as the purpose for which it is being used. For example, sheet metal has different requirements in comparison to thicker pieces. The various tips are designed to serve the same function. You should select the appropriate tip in order to create a professional finish in the iron.
Each manufacturer has its own guidelines for the nozzle or tip sizes, which are based on the thickness of the metal or plate. They also have various methods to classify the various sizes of tips, but the most common practice is to assign the number. A number that is low indicates an insignificant tip size and a higher number signifies an enormous tip size.
The more thick the material, the greater the size of the nozzle, or tip will be needed. A thin sheet needs a tip that has tiny nozzles to create an exact cut. This type of tool isn’t enough to cut through the thickest metal.
Generally use tips come in larger sizes to choose from. This lets them use metals with varying thickness, ranging from 1/4 of an inch as much as 12 inches in thickness. Specialized tips are more restricted in dimensions. For example, angular tips are among the most common.
Be aware that larger tips with bigger nozzles need more oxygen as well as acetylene in order to make a neutral flame as well as an increased speed to efficiently cut through metal.
How to Use It
To cut with it, after installing the machine, follow the guidelines to heat the metal prior to use. This is done prior to preparing to cut. Don’t push the lever while doing this, since the present flame is sufficient to pre-heat. It’s not hot enough to be used for cutting.
Make sure to do this on one of the edges or the ends of the cut that need to be made, but preferably at the hardest part to be cut. The metal will be softened making it easier to complete the task. Pay attention to the metal that has been heated. Make sure the surface of the metal appears to have a bright cherry red hue. This colour is a sign that the metal is prepared to cut.
When the metal has softened enough, gradually push the lever until you get the right amount of flame. Start by heating the edge. Examine if a cut been made. Then slowly move to the opposite side of the metal with the same speed and then follow the cut you left by tracing the mark on your metal.
Remember that the metals will remain hot even after the heat has gone off. Allow them to cool before touching them, even with gloves. Be sure to never place the torch that is lit on any surfaces.
What is the Ratio Between the Two Gases?
A neutral flame can be produced in the presence of there is a 1:1 ratio between two gases. This type of flame if you are looking for high-quality cuts that do not alter the characteristics of the metal. It is because similar amounts of these gases can create carbon dioxide, which serves as a protecting gas. It also helps to prevent the oxidation process of the metal and provides you with a straight cutting.
Oxy Acetylene Torch Settings: What Do You Set it At?
There must be equally sized amounts of acetylene and oxygen in order to produce an even flame. Be sure to use the proper pressure setting while working with this kind of apparatus. It’s contingent on the job you’re performing. It is important to note that the oxygen ratio differs from the pressure needed. This implies that the two pressures will not have identical pressure readings. This is crucial.
The oxygen should have higher pressure in order for the tool to perform efficiently. The actual setting for the cutting torch will be determined by the tip employed and the manufacturer’s Recommendations. In general higher pressure for both gas is required for larger-sized cutting tools. This makes sense since it is more powerful to cut larger parts of steel.
In the event that the recommended pressure settings aren’t specified. The safest numbers are 40 psi in oxygen and 10 psi when using acetylene regardless of the size of the tip. Adjust them until you reach a neutral flame. Be attentive to the pressure to stop it from going over the limit. Be sure to see if the company has provided any specific information about the two kinds that gas pressure. If so the settings must be observed.
What is the Maximum Working Pressure for Acetylene Gas?
The working pressure of Acetylene gas cutting with a torch is around 15 PSI, or 103.4 kPa. If the pressure is higher than this, it becomes unstable and is a danger. It is a gas that can ignite. When it becomes unstable, it’s susceptible to spontaneously exploding. The gas that is raw can trigger an explosion even after the slightest shock.
Fortunately, the danger is reduced since it is stored in tanks or cylinders and dissolving in Acetone. Liquid acetone is a stabilizer for this gas, preventing it from burning. Additionally, the cylinders are coated with acetone. This makes it possible to move either the tank of gas or cylinder in a safe manner.
If the acetylene’s pressure exceeds 15 PSI, the cylinder uses the acetone inside the cylinder in order to become steady. Although it has an impact on acetylene, it can negatively impact the other parts of the system. It may cause damage or degradation to the rubber or plastic parts and can affect the quality of work. The result is the failure of the regulator, halting the entire process. The failure indicates that the acetone is almost exhausted. The majority of what remains in the cylinder is dangerously pure Acetylene.
The most likely situation is that the rubber tube could get worse before the regulator is able to function because it has drawn an excessive amount of Acetone. In the event of this there is a chance for an explosion to happen.
What Do You Turn Off First, Oxygen or Acetylene?
When turning off the torch to cut must be done according to the proper procedure to ensure safe operation, particularly with oxygen and Acetylene. But, this is an issue that is causing disagreement for many. Many believe that the valve for acetylene must be turned off first, whereas others suggest shutting off the oxygen supply first.
The general consensus among manufacturers is that the oxygen needs to be turned off first. Then, switch off the acetylene but not the reverse. This will allow any soot that has was deposited upon the torch stamp to be removed by the Acetylene. The accumulation of soot could stop an engine’s fuel valve from sealing off, which can cause the valve to leak.
This technique also lets you to determine if leaks are occurring before you shut off the gas cylinders. When there’s a leak, the flame will not go out when you shut off both gasses. Finding a leak is vital to avoid an explosion.
The possibility of switching them out is there but the sound of a loud bang is more likely to occur if you shut off acetylene prior to oxygen. The sound is a flashback. If this occurs it is imperative to immediately switch off your oxygen. Mini-flashbacks too can be hazardous.
FAQs Related to Oxy Acetylene Torch Settings
What type or torch would you employ in order to cut through metal?
An oxy-acetylene torch can also be often referred to as a blow torch. It can be used to cut through metal. It is possible to begin warming the metal using the torch as a basic attempt to cut steel parts or pipes. When you can see the metal glowing with a glowing glow you can pull the trigger to cut the metal the way you want. Voila! You’re ready to tackle the next task in front of you.
What is a cutting torch utilized to cut?
As a welding torch, a cutting torch in the form of oxyacetylene is utilized to cut through materials like alloys and various metals. There are three kinds of torches within this class high pressure, positive pressure, and the injection type. There are also varieties such as rosebud torch. They are sometimes referred to as equal pressure torches. It mixes two gases into a single form.
What is the difference between these two kinds of torches for cutting?
There are two oxy-acetylene-based torches or blow torches and plasma cutter torches on the market. Both have advantages and disadvantages and also features that distinguish them. The electrical energy is included in neutral gas when using the plasma cutter. The ignition is generated by mixing an electrode with a nozzle.
Plasma gas is the result that is used to cut through metal and other materials. Plasma cutters are able to cut through larger quantities of metallic materials than different kinds of torches. They also demonstrate greater precision when cutting. They don’t need preheating, which means it saves time, too.
In oxy-acetylene torch gasoline and oxygen are utilized to warm the metal until it reaches a certain temperature. Then the cutting process begins. While oxy torches offer the benefit of being mobile, they are not able to cut through certain types of metals. This includes stainless steel, copper, and aluminium. They are not easily oxidized.
Can propane be used to make a cut torch?
If you’re wondering, “can you use any other gas in your store when you run out of acetylene?” What’s the answer? It’s possible to use propane in your torch, and you may discover that it’s less expensive to make use of than Acetylene. If you’re looking for an item that is quick to burn, the acetylene torch is more powerful than propane and is more efficient for the task at hand.
Be aware that you’ll have to wait longer to start to ignite the metal since propane has less power for heating. In addition, propane is not capable of welding certain metals due to the fact that it is not converted into a neutral flame.
What do I need my cutting torch to be adjusted to?
If you’re using multi-hole cutting, it is necessary to have the oxygen level set at 40psi as well as the fuel set at 10psi. Always check your equipment manual before you set your torch. Acetylene pressure should not exceed 9psi unless the device is specifically designed to handle it. It is also hazardous to use acetylene higher than 15psi because it can become explosive and highly combustible when in this situation.