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We recommend closing the oxygen valve first whenever turning off an oxy-fuel torch system especially when Acetylene is fuel.Part 4 of 5:
If you are using a cutting torch, open only the torch cutting oxygen valve. If you are using a cutting attachment, open the oxygen valve on the torch handle and the cutting oxygen valve on the attachment.You will have to purge both valves separately, and you can start by turning on the fuel gas valve by 1/2 turn first. Ignite the flame and adjust it till it becomes normal. Once this is done, turn up the oxygen valve and bring it to a neutral flame.
Table of Contents
When lighting a torch which should be opened first oxygen or acetylene?
Part 4 of 5:
If you are using a cutting torch, open only the torch cutting oxygen valve. If you are using a cutting attachment, open the oxygen valve on the torch handle and the cutting oxygen valve on the attachment.
Which gas is turned on first when setting up the torch?
You will have to purge both valves separately, and you can start by turning on the fuel gas valve by 1/2 turn first. Ignite the flame and adjust it till it becomes normal. Once this is done, turn up the oxygen valve and bring it to a neutral flame.
How to Safely Start Your Oxygen-Acetylene Welder – Kevin Caron
Images related to the topicHow to Safely Start Your Oxygen-Acetylene Welder – Kevin Caron
Which gas must be opened first when oxygen and acetylene welding?
When starting a torch, the acetylene valve should be opened first. Next, the torch should be ignited, and then oxygen can be introduced. Please note that opening both gas valves prior to ignition can cause gas backflow into either gas hose, leaving the system vulnerable to flashback.
What is the correct lighting procedure for 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.
What pressure should I set my oxygen and acetylene?
The gas pressures should be set at 3 to 5psi for Acetylene, and 20 to 30psi for the oxygen, but when you squeeze the oxygen lever after the initial flame adjustment of the preheat flames to neutral just to a point where the feather disappears,the oxygen cutting stream should be visible and at least 4 inches in length …
What should I set my oxygen and acetylene?
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.
Setting up and shutting down an Oxy-fuel cutting torch system.
Images related to the topicSetting up and shutting down an Oxy-fuel cutting torch system.
See some more details on the topic Do you turn on oxygen or acetylene first? here:
For acetylene cutting, what do you turn on first … – Quora
You always turn on acetylene first, light it, and set the flame to a minimum. THEN you turn on the oxygen, and adjust the flame as required to correct it …
O/A: why shut off acetylene first? – WeldingWeb – Welding …
Turning off the fuel first allows the oxygen to purge the torch of combustables. If you turn off the o2 first, you’ll have a combustible mix of fuel/air in the …
How to Safely Start Your Oxygen-Acetylene Welder – Kevin …
Kevin says that’s not dangerous, but it is a little scary at first. He lights the flame again and turns off the oxygen first, then the acetylene …
Setup and shutdown Oxygen and Acetylene Torch – Welding …
Always Always Always turn on the oxygen very slowly. Turning it on suddenly can actually make the regulator explode. · Stand to the side and slowly turn on the …
Why is my acetylene torch popping?
The reason that an oxyacetylene cutting torch will pop and go out is because of a problem with gas flow. Usually this is either an issue with flow settings, a leak or blockage.
How far should acetylene valves be turned on?
An acetylene cylinder valve shall not be opened more than one and one-half turns of the spindle, and preferably no more than three-fourths of a turn.
Why is the oxygen valve turned on before starting to clean a cutting tip?
Buy a new tip. Why is the oxygen valve turned on before starting to clean a cutting tip? To blow away any debris.
When opening cylinder valves one should?
Carefully open all valves, slowly, pointed away from you and others, using the proper tools. Close all valves when cylinders are not in use. Never tamper with safety devices in cylinders, valves or equipment.
What is the first thing a welder must do when moving a gas cylinder?
1. The acetylene torch valve should be closed first when shutting off the torch. 2. When moving cylinders they should be rolled on their bottom edges.
Oxy-Acetylene Regulator Setup Tutorial
Images related to the topicOxy-Acetylene Regulator Setup Tutorial
Why might closing the oxygen cylinder then the acetylene cylinder?
Acetylene gas is dissolved in the acetone liquid. The safety cap should always be in place when moving oxygen cylinders because: If the valve were to break off the cylinder would fly through the air.
When you are ready to light your torch which valve will need to be opened first on the torch?
Terms in this set (18) When preparing to light the torch the first thing you do is: Open the oxygen cylinder valve to full- slowly.
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