What pressure should oxygen and acetylene be set at for cutting?
The recommended setting for multi-hole cutting is the oxygen regulator at 40 psig with the acetylene regulator setting at 10 psig.
What is the maximum operating pressure when cutting with acetylene?
Maximum pressure. Under no condition shall acetylene be generated, piped (except in approved cylinder manifolds) or utilized at a pressure in excess of 15 psig (103 kPa gauge pressure) or 30 psia (206 kPa absolute).
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.
What are typical cylinder pressures for oxygen and acetylene?
Both oxygen and acetylene gases are stored under pressure. The average pressure in an oxygen tank at room temperature (70°F / 21°C) is about 2200 PSI when full. The average pressure in an acetylene tank under the same conditions is about 250 PSI .
What is the maximum working pressure for acetylene gas?
• The maximum safe working pressure for acetylene is 15 psig (103 kPa). Do not discharge cylinders at pressures above this limit. • Never use oxygen or fuel gas to blow dirt or dust off clothing or equipment. • Acetylene will form explosive deposits with certain metals and alloys.
Why is acetylene used as welding gas?
Acetylene is used as fuel for oxy-cutting and oxy-welding . When mixed with oxygen, it’s the most effective gas to form a flame hot enough to cut and weld most metals with ease. It’s more expensive than some other fuel types, but it’s the best type of fuel to use.
What is the ratio of oxygen to acetylene?
The pressures needed to braze with different metals differ, but the ratio of oxygen to acetylene should always be 2 to 1. To use bronze, a common brazing material, the acetylene regulator should be set for 5 psi and the oxygen for 10 psi.