长轴离心深井泵产品质量分等标准——质量指标JB/NQ119.1—87 本标准适用于长轴离心深井泵(以下简称泵)产品质量分等。1 泵产品应按经规定程序批准的产品图样和技术文件制造,并符合有关标准规定。2 按泵的技术水平和质量水平,分为合格品,一等品,优等品。3 产品性能3.1 泵的性能应符合表1的规定。3.2 泵的流量与扬程偏差按GB3216《离 Long axis centrifugal deep well pump product quality standards - Quality indicators JB / NQ119.1-87 This standard applies to the long axis centrifugal deep well pump (hereinafter referred to as pump) product quality classification. 1 Pump products shall be manufactured according to the product drawings and technical documents approved by the prescribed procedures and comply with relevant standards. 2 according to the technical level and quality of the pump, divided into qualified products, first-class products, superior products. 3 product performance 3.1 pump performance should comply with the provisions of Table 1. 3.2 pump flow and head deviation by GB3216 "away