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由江西萍乡南方煤机厂研制的BKY60-4X型高效低噪声局扇已于1990年4月21～23日通过了由中国统配煤矿总公司生产司和技术发展局联合主持的出厂评议,参加评议会的有来自全国的28名专家和代表。会议听取了萍乡南方煤机厂关于该型风机研制过程的介绍,并对风机的气动性能,采用G B1236-76和G B1236-85标准分别进行了测试,对风机噪声采用GB2888-82标准进行了实测,测试的主要参数:风量207m~3/min,全风压2016.4Pa,全面效率
BKY60-4X high-efficiency and low-noise fan developed by Pingxiang Nanfang Coal Machine Factory of Jiangxi Province passed the ex-factory evaluation co-sponsored by the Production Division of China National United Coal Mine Corporation and the Technology Development Bureau from April 21 to April 23, 1990, The council has 28 experts and representatives from all over the country. The meeting listened to the introduction of Pingxiang Nanfang Coal Machine Factory about the development process of this type of fan, and tested the aerodynamic performance of the fan by G B1236-76 and G B1236-85 respectively, and adopted GB2888-82 standard for fan noise Measured, the main parameters of the test: air volume 207m ~ 3 / min, full pressure 2016.4Pa, overall efficiency