Gas Supply No Less than 0.2M ³ @ 0.3MPa/Min: Specification Writing and Technical Meaning Analysis

What is “the gas supply is not less than 0. 2m³ @ 0.3MPa /min ”?

This parameter is the key performance index of compressed air system or pneumatic equipment, indicating that the pressure is0.3 MPa (MPa)stable output air volume per unit timeno less than 0.2 cubic meters (m³), the time unit isper minute (min).

Standard writing forms description

it is recommended to adopt internationally accepted and unambiguous engineering expressions:

• numerical unit working condition, use the @ symbol to connect pressure conditions (industry practice, non-mathematical multiplication sign);
• unified use of pressure unitsMPa(Instead of kgf/cm² or bar), avoid conversion errors;
• for unit volumem³, Time Unitmin, slash “/” cannot be omitted;
• “Not less than” should be explicitly written≥0.2 m³/min @ 0.3 MPa(More in line with technical documentation specifications).

Common miswriting and precautions

❌Error example:
•” 0.2m3/min @ 0.3mpa “(Case is not standard, space is missing, unit abbreviation is incorrect)
• 0.2 cubic meters/minute @ 0.3 MPa (mixed Chinese and symbols, not applicable to the technical tender)
✅Correct example:
≥0.2 m³/min @ 0.3 MPa

0.3 MPa

≥0.2 m³/min
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