输送流量 Q
Flow Rate Q m³/min(FAD)

有效长度 L
Effective Length L m

*“有效长度”为输入点至使用点的最短管线长度，此处暂忽略了配件影响。

*"Effective Length" refers to the shortest pipeline distance from the supply point to the point of use. The influence of fittings is temporarily ignored in this calculation.

允许压损 ΔP
Allowable Pressure Drop ΔP bar

*“允许压损”通常是指客户所能接受的输入点至使用点之间的最大压损，GB50029规定总压损不宜大于供气压力的10%。车间建议在0.5bar以内。

*"Allowable Pressure Drop" generally refers to the maximum pressure drop from the supply point to the point of use that the customer can accept. According to GB50029, the total pressure drop should not exceed 10% of the supply pressure. For workshop applications, it is recommended to keep it within 0.5 bar.

输入压力 P
Inlet Pressure P bar(g)