What is the required pressure of compressed air when using it for light off?

The correct pressure of compressed air used for light-off procedures typically falls within the range of 85 to 150 psig. This pressure range ensures that there is sufficient force to facilitate ignition and combustion in various systems, while also maintaining safety and efficiency. Compressing air at this level allows the effective movement of fuel and air mixtures, which is crucial for a successful light-off in engines or other combustion processes.

In contrast, pressures lower than this range may result in inadequate fuel-air mixing, leading to difficulties in ignition, while pressures exceeding this range could pose safety hazards and potentially damage equipment. Knowing the appropriate pressure is essential for proper operational protocols in a machining and maintenance environment.