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Rotary air compressors: typical maximum delivery pressure What is a representative maximum delivery pressure achievable with rotary air compressors (e.g., roots/rotary screw) in single-stage practice? Choose the correct option.

Difficulty: Easy

10 bar
20 bar
30 bar
50 bar

Correct Answer: 10 bar

Explanation:

Concept/Approach
Rotary positive-displacement compressors (roots, screw) are well suited to moderate pressures and high flow. Typical single-stage delivery pressures are around 10 bar. Higher pressures are usually attained using multi-stage reciprocating machines.

Final Answer
10 bar

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