Besides,the application and control of the variable air volume(VAV) control valve were discused,and contrasts the capability between the venturi valve and the VAV butterfly valve was contras.

• 另外,重点讨论了变风量控制阀的应用、控制方法并对常用的两种变风量阀文丘里控制阀和VAV蝶阀的性能进行了比较。