Recently, the reporter learned from the State Administration of Quality Supervision, Inspection and Quarantine that, in order to safeguard the legitimate rights and interests of consumers and promote the healthy development of the air compressor industry, the AQSIQ has recently conducted supervision and random inspections on the quality of positive displacement air compressors, spot-checking Jiangsu, Zhejiang, and China. Twenty-four kinds of products (not related to export products) produced by 24 companies in three provinces such as Shandong, and the sample product qualification rate of 87.4%.
The spot check is based on the requirements of the national standard of the JB8524-1997 "Volumetric Air Compressor Safety Requirements" and the GB/T13928-2002 "Miniature Reciprocating Piston Air Compressor" national standards and related product standards, and the volumetric flow of compressors for air compressor products. , noise power level, vibration intensity, safety valve sensitivity, exhaust pressure automatic control device, moving parts protection, motor thermal insulation resistance, electrical control equipment insulation resistance, pressure vessels and signs, etc. 10 electrical safety and performance items were carried out test. After inspection, the spot inspection of the product of vibration intensity, exhaust pressure automatic control device, moving parts protection, motor thermal insulation resistance, electrical control equipment insulation resistance, pressure vessels and other items single pass rate of 100%.
In spite of this, in the spot check, the quality inspectors also found that the individual products still have quality problems: First, the volume flow of individual products failed. The recommended national standard GB/T13928-2002 "Miniature Reciprocating Piston Air Compressor" stipulates that the actual volumetric flow rate of an air compressor under a specified working condition should reach 95% of the nominal volumetric flow rate. In the spot check, the volumetric flow rate of individual products did not meet the requirements of the standard, and the measured volumetric flow rate was 60.9% of the value indicated on the nameplate. Second, the sensitivity of individual product safety valves does not meet the standard requirements. The safety valve is a key safety component of the air compressor product. Once the air compressor control fails, the safety valve starts to release compressed air and protect the safety of the air compressor.
all. In the spot check, there are individual products that cannot start the jump protection machine according to the standard when the air compressor is overpressured.
Regarding the above-mentioned major product quality problems found in spot checks, the AQSIQ has instructed all local quality and technical supervision departments to strictly comply with the provisions of relevant laws and regulations such as the product quality law, and dealt with enterprises that failed to meet the quality requirements during the random inspections according to law and rectify them within a time limit. At the same time, it will intensify publicity efforts and guide consumption in quality-checked companies.
It is reported that AQSIQ will continue to conduct follow-up inspections on the quality of air compressors, which will promote the improvement of the overall quality level of the air compressor industry.

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