JB/T 53292-1999
Long Shaft Centrifugal Deep Well Pump - Product Quality Grading (Internal Use)
长轴离心深井泵 产品质量分等（内部使用）
Catalogue
前言 → 1 范围 → 2 引用标准 → 3 产品的质量等级 → 4 试验与检验方法 → 5 抽样、评定方法 → 附录A Foreword → 1 Scope → 2 Normative References → 3 Product Quality Grades → 4 Test and Inspection Methods → 5 Sampling and Evaluation Methods → Annex A
Scope
This standard specifies the quality grades, test and inspection methods, and sampling and evaluation methods for long shaft centrifugal deep well pump products. This standard applies to long shaft centrifugal deep well pumps.
本标准规定了长轴离心深井泵产品的质量等级、试验与检验方法和抽样、评定方法。本标准适用于长轴离心深井泵。
Normative References
Keywords
Application Summary AI generated
Pump manufacturers use this standard to grade the quality of long shaft centrifugal deep well pumps, ensuring products meet qualified, first-class, or premium levels. Quality inspection agencies and customers rely on it for product acceptance and supervision. By standardizing assessment items and criteria, it enhances pump reliability and market competitiveness.
泵制造企业使用本标准来评定长轴离心深井泵的质量等级，确保产品达到合格品、一等品或优等品的要求。质检部门和用户依据本标准进行产品验收和质量监督。该标准通过统一考核项目和指标，提升了泵产品的可靠性和市场竞争力。
AI Summary AI generated
This standard specifies quality grading requirements for long shaft centrifugal deep well pumps, dividing products into three grades: qualified, first-class, and premium. It defines technical indicators and test methods for key assessment items such as flow rate, head, efficiency, vibration, and noise, and establishes sampling and evaluation rules. It is used by manufacturers for quality control and product acceptance, helping to improve overall pump product quality.
本标准规定了长轴离心深井泵的质量分等要求，将产品分为合格品、一等品和优等品三个等级。标准明确了流量、扬程、效率、振动、噪声等主要考核项目的技术指标和试验方法，并规定了抽样和评定规则。适用于制造企业的质量控制和产品验收，有助于提升泵产品的整体质量水平。
Key Sentences extracted from text
产品根据质量水平和使用价值分为合格品、一等品和优等品三个等级。
产品应符合JB/T 443、JB/T 3564 的规定，其中主要考核项目及要求应符合表1 的规定，评定产品质量等级的考核项目、指标和要求应符合表3 的规定。
批量产品应首先进行单个产品的质量等级评定，判定单个产品的质量等级应符合该等级全部考核项目的要求，否则按达到的最低一项指标定等。
采取全数检查方法时，当所有产品达到合格品时，该批产品才能评为合格品；当达到一等品或优等品的数量占总数70%以上，且其余产品达到合格品时，该批产品才能评为一等品或优等品。
采取抽样检查方法时，可按JB/T 8687 规定的合格判定数Ac（或A1、A2）和不合格判定数Re（或R1、R2）评定该批产品达到某一等级（合格品、一等品或优等品）。
Products are divided into three grades: qualified product, first-class product, and premium product, based on quality level and use value.
Products shall comply with the provisions of JB/T 443 and JB/T 3564, where the main assessment items and requirements shall comply with the provisions of Table 1, and the assessment items, indicators, and requirements for evaluating product quality grades shall comply with the provisions of Table 3.
For batch products, the quality grade of individual products shall first be evaluated; the quality grade of an individual product shall meet the requirements of all assessment items for that grade, otherwise it shall be graded according to the lowest indicator achieved.
When using the full inspection method, the batch can only be rated as qualified if all products meet the qualified grade; if the number of products reaching first-class or premium grade accounts for more than 70% of the total, and the remaining products meet the qualified grade, the batch can be rated as first-class or premium.
When using the sampling inspection method, the batch can be evaluated as reaching a certain grade (qualified, first-class, or premium) according to the acceptance number Ac (or A1, A2) and rejection number Re (or R1, R2) specified in JB/T 8687.
Standard Timeline
Changes from replaced version:
- 删除了“千小时效率平均降低值”考核项目
- 将产品标准中规定的流量、扬程、轴封泄漏量、润滑油渗漏、清洁度、泵用材料、涂漆和外观及包装等主要考核项目及要求从表3中移出列入表1、表2中
- Deleted the assessment item 'average efficiency reduction per thousand hours'
- Moved the main assessment items and requirements such as flow rate, head, shaft seal leakage, lubricating oil leakage, cleanliness, pump materials, painting and appearance, and packaging from Table 3 to Table 1 and Table 2