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. In short, it could be a number of things.
The popping is most likely coming from your torch to tip connection. Either it is not tight or the seat is damaged causing a leak. The “pop” is leaked gas igniting. I will check the torch to tip connection, Thanks.
Beside above, what causes popping when gas welding? Among the causes of popping or snapping is the tip becoming overheated, the pressures of the gas be- ing inappropriate or incorrect, the tip coming into contact with the weld, the tip being loose, or the seat being dirty (Autodesk).
Also know, what should oxygen and acetylene gauges be set at?
RULE OF THUMB (MULTI-HOLE CUTTING TIPS, OXY / ACETYLENE) 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.
How dangerous is oxy acetylene?
Acetylene line pressure that exceeds 15 psig is extremely DANGEROUS. Acetylene gas can become unstable and violently decompose when more than 15 pounds of pressure is used, so it is imperative that pressure never exceed 15 psig when working with university equipment.
Do you turn off oxygen or acetylene first?
Shut off oxygen first or acetylene first? To shut down the torch, close the acetylene torch valve first, then the oxygen. (A ‘pop’ may occur if you reverse the order. The pop throws carbon soot back into the torch, which may partially plug the gas passages.)
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”.
Does acetylene go bad?
IF the bottle has been stored vertical, there should be no issues with the acetylene and Acetone separating and it will not go bad.
How do you know when oxygen tank is empty?
Re: How to tell when your tank is empty The working pressure (to the torch or gun) and the tank pressure. Tank pressure is an indication of how much gas you have left at a given temp. When the tank pressure gage is zero, your bottle is empty. A full bottle of oxygen is 2200 psi.
What is a rosebud torch tip used for?
A rosebud is designed to use a lot of oxygen and acetylene gas flow. A cutting torch tip uses a lot of oxygen sometimes but a rosebud needs a lot of both gases flowing to keep it cool and to keep from popping back. Another cause is operation in a confined space.
How do you regulate a 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 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 is the working pressure of acetylene?
The pressure of acetylene in an acetylene cylinder can be as high as 250 psi (1724 kPa). A gas pressure regulator will automatically deliver a constant volume of gas to the torch at the adjusted working pressure.
At what pressure does acetylene become unstable?
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.
How do you set an oxygen acetylene torch?
How to Set Up an Oxy-Acetylene Torch 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.
What do the numbers on a torch tip mean?
The first number is the tip size, the second number is the series(1 or 3 typically), and the last numbers are the fuel gas, 101 is typ acetylene and 303 is LP/NG.
How thick can an oxy acetylene torch cut?
Oxy-acetylene torches can easily cut through ferrous materials in excess of 200 mm (8 inches). Oxygen lances are used in scrapping operations and cut sections thicker than 200 mm (8 inches).