本报告介绍了各种类型的HVAC系统气流控制挡板在各种类型、安装和运行条件下的性能试验结果。用本文给出的数据和结果进行了368次试验。基本性能参数是损失系数和最大流量百分比，作为阻尼器开度的函数。研究结果对暖通空调系统设计人员正确选择气流调节风门非常有用。

This report presents the experimental results of the performance of various types of HVAC system airflow control dampers over a wide range of types, installations, and operating conditions. 368 tests have been conducted with the data and results presented herein. The fundamental performance parameters are the loss coefficient and the percentage of maximum flow as functions of the degree of damper opening. Results should prove very useful for HVAC system designers in the proper selection of airflow modulating dampers.