JB/T 53063-1999

Fan manufacturers and quality inspection authorities use this standard to grade the quality of general purpose centrifugal fans. By classifying products into three levels—qualified, first-class, and superior—it provides a unified basis for quality control, product excellence recognition, and pricing. This standard helps improve the overall quality level of the fan industry and ensures reliable product performance.

风机生产企业和质量监督部门使用本标准来对一般用途离心通风机进行质量等级评定。通过将产品分为合格品、一等品和优等品三个等级，本标准为风机产品的质量控制、创优和定价提供了统一依据。它有助于提升风机行业整体质量水平，确保产品性能可靠。

This standard JB/T 53063-1999 specifies the product quality grading requirements for general purpose centrifugal fans, classifying products into three grades: qualified, first-class, and superior. It covers quality grade indicators (such as total pressure efficiency deviation, vibration velocity, noise limits, etc.), test and inspection methods (including aerodynamic performance, noise, vibration, and rotor balance tests), as well as sampling and evaluation methods. Key requirements include a 100% pass rate for critical items of main components and grading based on the lowest indicator. The standard applies to centrifugal fan products specified in GB/T 13275, providing a unified basis for quality control and grade evaluation.

本标准JB/T 53063-1999规定了一般用途离心通风机的产品质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准涵盖了质量等级指标（如全压效率偏差、振动速度、噪声限值等）、试验与检验方法（包括空气动力性能、噪声、振动和转子平衡测试）以及抽样和评定方法。关键要求包括主要零部件关键项目合格率100%，以及根据最低指标评定产品等级。该标准适用于GB/T 13275规定的离心通风机产品，为质量控制和等级评定提供了统一依据。