What is the target pressure for charging the Scavenge System?

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Multiple Choice

What is the target pressure for charging the Scavenge System?

Charging the Scavenge System means bringing it up to its designated operating pressure so that the scavenging passages, valves, and fittings are properly engaged and able to move oil or air as intended. The target of 1740 psi (120 bar) is chosen because it provides enough pressure to overcome backpressure in the scavenging lines and to seat the system’s check and relief valves, ensuring reliable scavenging across operating conditions. This pressure also matches the system’s rated limits, offering a safety margin against cavitation and flow instability. Pressures much lower won’t fully pressurize the lines or seat the valves, while pressures much higher can stress seals and components and risk overpressure protection. Therefore, 1740 psi (120 bar) is the appropriate charging pressure.

Charging the Scavenge System means bringing it up to its designated operating pressure so that the scavenging passages, valves, and fittings are properly engaged and able to move oil or air as intended. The target of 1740 psi (120 bar) is chosen because it provides enough pressure to overcome backpressure in the scavenging lines and to seat the system’s check and relief valves, ensuring reliable scavenging across operating conditions. This pressure also matches the system’s rated limits, offering a safety margin against cavitation and flow instability. Pressures much lower won’t fully pressurize the lines or seat the valves, while pressures much higher can stress seals and components and risk overpressure protection. Therefore, 1740 psi (120 bar) is the appropriate charging pressure.

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