The recommended setting for multi-hole cutting is the oxygen regulator at 40 PSIG, with the acetylene regulator setting at 10 PSIG. As with the previous recommendation, this applies to cutting less than 1.5 inches thick steel.
What should my oxygen and acetylene be set at for cutting?
For 3/16″ to 1/4″ thick steel using a #0 cutting tip, your settings should be about 30 psi for oxygen, and about 4 psi for acetylene. At 12 psi for oxygen, you probably had trouble blowing through the edge of the material to get your cut started.
What pressure should oxygen and propane be set at for cutting?
When one is nearing time to ignite the torch, around 10 pounds of pressure is dialed into the propane cylinder’s outlet valve. On the oxygen regulator outlet, around 40 pounds of pressure is dialed in.
What is the best way to set the oxygen pressure for cutting?
What is the best way to set the oxygen pressure for cutting? Make sure the oxygen cylinder is secure and open the valve all the way. What metals can be cut with the oxyfuel gas process?
What PSI should a cutting torch?
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.
What should my oxygen level be?
A normal level of oxygen is usually 95% or higher. Some people with chronic lung disease or sleep apnea can have normal levels around 90%. The “SpO2” reading on a pulse oximeter shows the percentage of oxygen in someone’s blood. If your home SpO2 reading is lower than 95%, call your health care provider.
Why is my cutting torch popping?
Overheated Nozzle
If the popping is only happening after you’ve been using the torch for a while, like maybe after half an hour or so, it might be because the nozzle is getting too hot. … Turn off the torch with the torch valves. When the flame is out, open up the oxygen valve. Then dunk the nozzle in water.
What should the pressure be on a propane torch?
Turn on the propane tank and oxygen tank. Adjust the psi on the oxygen regulator to around 40 psi. Adjust the psi on the propane tank regulator between 5 and 10 psi.
How do you set a propane cutting torch?
How To Set Up a Propane / Oxygen Torch – YouTube
Can you use compressed air instead of oxygen for cutting?
No. It is not the quantity of air you need, but the concentration of oxygen present in the air. Air normally contains approximately 19% oxygen- compressing the air does not increase the oxygen content of the air. For oxy-fuel torches and burners you need oxygen- not air, which is 100% oxygen.
What should oxygen be set at on torch?
Safe numbers are 40 psi for oxygen and 10 psi for acetylene, regardless of tip size. Simply adjust them until you get a neutral flame, but pay close attention to the pressure to prevent it from exceeding the limit.
What is the ratio of oxygen to acetylene?
Natural Gas
| Table : Fuel Gas Characteristics | ||
| Fuel Gas | Maximum Flame Temperature °C | Oxygen to fuel gas Ratio (vol) |
|---|---|---|
| Acetylene | 3,160 | 1.2:1 |
| Propane | 2,828 | 4.3:1 |
| MAPP | 2,976 | 3.3:1 |
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 pressures is acetylene gas considered volatile?
Free gaseous acetylene, depending upon confinement conditions, is potentially unstable at pressures above 15 psig. Some conditions can cause the acetylene to decompose with explosive violence. Experience indicates 15 psig is generally acceptable as a safe upper pressure limit.
How do we select the correct size of torch nozzle?
Four Steps to Proper Nozzle Selection
- Choose One-Piece or Two-Piece Nozzle: Acetylene – one-piece nozzle always. …
- Choose Series: ANM, ANM-E, PNM, PNM-E, AFN nozzles. …
- Choose Preheat Capacity: Choice of nozzle depends on preheat capacity. …
- Choose Size: Select size recommended for thickness of steel to be cut.
What is the number for acetylene?
CAS number : 74-86-2 Substance/mixture CAS number/other identifiers : Occupational exposure limits, if available, are listed in Section 8.
Is 92 oxygen level OK?
If you are using an at-home oximeter, you should contact your health care provider if your oxygen saturation level is 92 percent or lower. If it falls to 88 percent or lower, seek immediate medical attention.
Is 92 a good oxygen level?
Health Line
So what is the normal oxygen level? People who are breathing normal, who have relatively healthy lungs (or asthma that is under control), will have a blood oxygen level of 95% to 100%. Anything between 92% and 88%, is still considered safe and average for someone with moderate to severe COPD.
Is 94 a good oxygen level?
Your blood oxygen level is measured as a percentage—95 to 100 percent is considered normal. “If oxygen levels are below 88 percent, that is a cause for concern,” said Christian Bime, MD, a critical care medicine specialist with a focus in pulmonology at Banner – University Medical Center Tucson.
How do you balance a cutting torch?
Acetylene torch basics – YouTube
Do you turn on oxygen or acetylene first?
We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.
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.
Are acetylene and propane regulators the same?
If your working pressure is less than 15PSI you can still use the acetylene regulator because it is designed to be used under the same cylinder pressure as propane and propylene and provides maximum outlet pressure of 15PSI.
Can you weld with oxygen and propane?
Welding Process: Firstly: Propane gas cannot be used for gas welding. When acetylene burns in oxygen, it creates a reducing zone that cleans the steel surface. Propane does not have a reducing zone like acetylene and hence cannot be used for welding.
Can you use propane instead of acetylene for a cutting torch?
Propane can like acetylene be used for cutting. If you cut with acetylene, you normally put the tip of the inner flame cone on the metal (1mm from the plate surface). If you do the same with propane, you will be waiting for a long time.
What does propane and oxygen make?
Propane undergoes combustion reactions in a similar fashion to other alkanes. In the presence of excess oxygen, propane burns to form water and carbondioxide.
Does propane burn cleaner than acetylene?
The simple answer to this question is yes. The maximum neutral flame for acetylene in oxygen is about 5720 F, while the temperature for propane is 5112. This does not, however, mean that propane gives off less heat. Acetylene may burn hotter and can even pre-heat metal faster.
Do you need a regulator on a propane torch?
A propane torch needs a high-pressure regulator to control the gas flow from the tank’s valve to the torch. If there is no regulator, the gas tank and the torch are severe safety hazards.
How do you make oxygen for a cutting torch?
How to make your own compressed oxygen for oxy torch – YouTube
Can you make breathable oxygen at home?
How to make your own oxygen kit at home? – YouTube
Can you use air compressor on torch?
You can’t use an air compressor because you need pure oxygen to produce the high temperature of an oxy-acetylene torch otherwise you just have an acetylene torch. The oxygen pressure ranges between 0.7 to 2.8 bar (10 to 40 psi), depending on the size of the torch tip.
How do you set an oxy acetylene cutting torch?
How To Set Up And Operate A Cutting Torch – YouTube
How do you set up an oxygen and acetylene tank?
How to properly light, adjust and shut down an oxy–acetylene…
- Make sure regulator pressure adjustment screws are backed out!
- Make sure torch valves are closed!
- Stand away from front of regulator.
- Separately and slowly open the oxygen and acetylene cylinder valves.
- Adjust regulator p/a screws to tip pressure settings.
How are oxygen and acetylene regulators set up?
How to Set-up and Adjust Oxy-Acetylene Regulators – YouTube
What pressure should oxygen and acetylene be set at for brazing?
In case the recommended working pressure settings are not indicated, safe numbers are 40 psi for oxygen and 10 psi for acetylene, regardless of cutting tip size.
What is the ratio of oxygen to acetylene in carburizing flame?
Carburizing Flame : It has more of acetylene content than that of oxygen, approximately 3:1.
What temperature does oxygen and acetylene burn at?
Air-acetylene produces a flame temperature of around 4000° F (2200° C). This is hot enough to solder aluminum work glass, repair radiators and braze plumbing fixtures. It is not hot enough to weld steel. When acetylene is burned in pure oxygen, the flame temperature may be as high as 5730° F (3166° C).
How do you adjust gauges on a cutting torch?
Oxy Acetylene cutting torch setup – YouTube
Can you store oxygen and acetylene together?
Oxygen storage. Oxygen cylinders shall not be stored near highly combustible material, especially oil and grease, or near reserve stocks of carbide and acetylene or other fuel-gas cylinders, or near any other substance likely to cause or accelerate fire, or in an acetylene generator compartment.
What is the 1/7 acetylene rule?
The 1/7 rule simply means it is unsafe to flow more than 1/7th of an acetylene cylinder’s total contents.
What happens if you break the 1 7th rule?
The 1/7th rule refers to the flow rate at which an operator dispenses the gas from the cylinder. … If the flow rate exceeds the recommended flow rate, you‘ll start to pull acetone through which can cause the acetylene to reduce.
What happens when you lay an acetylene tank on its side?
Acetylene cylinders must not be placed on their sides, since the acetone and binders will have dislodged. The result may be formation of an acetylene “pocket” that is subject to polymerization and the possibility that liquid acetone will be released into the regulator.
How do you use a cutting torch?
How To Use A Cutting Torch – YouTube
How many types of cutting torches are there?
There are two types of cutting torches : low-pressure cutting torches and high-pressure cutting torches.
What is the hottest cutting torch?
The hottest most-versatile gas, acetylene, is very easy to use for all purposes. Pre-heat time for cutting and gouging is relatively short because the flame temperature is between 5,600 and 5,800 F.