What pressure should oxygen and acetylene be set at for brazing?

What pressure should oxygen and acetylene be set at for brazing?

Oxygen and acetylene should be set at equal delivery amounts depending on the size and mass of the object being brazed. This would translate into 5 psi oxygen and 5 psi acetylene. These pressures are delivery pressures that must be set as the gas is flowing from the torch tip.

What PSI should acetylene line pressure be set at?

Experience indicates 15 psig is generally acceptable as a safe upper pressure limit. The 30 psi absolute pressure limit is intended to prevent unsafe use of acetylene in pressurized chambers such as caissons, underground excavations, and tunnel construction.

What pressure should the oxygen and acetylene gauges show before using the torch for brazing?

Close both torch valves. For the oxygen, turn the pressure-adjusting screw on the regulator until the gauge reads about 25 psi. For the acetylene, turn the pressure-adjusting screw on the regulator until the gauge reads about 10 psi.

What should I set my oxy acetylene gauges to?

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 ratio of oxygen to acetylene in a neutral flame for brazing?

1.1:1 ratio
A neutral flame uses close to a 1.1:1 ratio of oxygen to acetylene.

What pressure should torches be set at?

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 is brazing temperature?

Brazing, when performed correctly, is a joining process that produces a permanent bond between two or more materials by heating them to a temperature above 450°C (840°F), but lower than the melting-temperature of any of the materials being joined.

How do you set the oxygen and acetylene in a torch?

Open Regulator Oxygen and Acetylene, set until the pressure matching with what do you want or for acetylene 5 to 7 psi and Oxygen 7 to 10 psi. The third open valve in torch, first acetylene after that you can open oxygen valve.

How to use oxygen and acetylene regulator?

Open Regulator Oxygen and Acetylene, set until the pressure matching with what do you want or for acetylene 5 to 7 psi and Oxygen 7 to 10 psi. The third open valve in torch, first acetylene after that you can open oxygen valve. If the gas has out from nozzle you can use lighter and light the torch.

How do you set up an oxy oxy acetylene welder?

Oxy Acetylene Welding Set Up and Pressure Settings Chart : The first we must Clean the nozzle, because if the head of nozzle dirty will cause flame bad. Open Regulator Oxygen and Acetylene, set until the pressure matching with what do you want or for acetylene 5 to 7 psi and Oxygen 7 to 10 psi.

What is the psig setting for oxo-acetylene cutting pressure?

Oxy-Acetylene Cutting Pressure Settings & Chart Thickness of metal in inches Tip size Pre-heat oxygen (PSIG) Pre-heat oxygen (SCFH) Cutting oxygen (PSIG) 0.125 000 3/5 3/5 20/25 0.25 00 3/5 4/8 20/25 0.375 0 3/5 5/9 25/30 0.5 0 3/6 7/11 30/35