LuoYang City Chanhedong Sewage Treatment Plant is a key project of Luoyang City and Henan Province in China. The overall scale designed is to treat 300,000 cubic meters of sewage per day. It mainly treats municipal sewage in Xigong District, Laocheng District, and Chanhe District. Luoyang Zhongjia Control Technology Co., Ltd. 150KW blower was put into operation at it in April 2022, and the equipment can fully meet the needs of sewage treatment production. During this period, this customer extracted and compared the usage data of Zhongjia and Yisheng two company blowers. In terms of noise, energy consumption, stability and operating parameters of each power section, the equipment operation conditions of the two companies were not much different. Both can meet the aeration process requirements of water plants. Moreover, Zhongjia Company has obvious advantages in after-sales service and the cost-effectiveness of products.