Cutting with MAPP gas. (1) Quality cuts with MAPP gas require a proper balance between preheat flame adjustment, oxygen pressure, coupling distance, torch angle, travel speed, plate quality, and tip size. Oxyfuel ratios to control flame condition are given in table 11-4. (2) MAPP gas is similar to acetylene and other fuel gases in that it can be made to
Read more →MAPP GAS CYLINDERS a. MAPP gas is a mixture of stabilized methylacetylene and propadiene. b. Store liquid MAPP gas around 70°F (21°C) and under 94 psig pressure. c. Repair any leaks immediately. MAPP gas vaporizes when the valve is opened and is difficult to detect visually. However, MAPP gas has an obnoxious odor detectable at 100 parts per million, a
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